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1. Write Solver File If Import Summary is selected in the Tree Outline the Import Summary report is exported as a htm file If Generate Data is selected a inp solver file is written using the format selec ted in the Target System field in the toolbar git Print Preview oes Normal Image Resolution Enhanced Image Resolution High Resolution Memory Intensive Resolution feature Allows you to define the quality of the image s resolution as Normal Image Resolution Enhanced Image Resolution or High Resolution Note The High Resolution choice requires significant memory capacity Print button Valid only for Import Summary section and the Print Preview button Allows you to print the contents as displayed Print Preview Print Preview button When a picture or graphic represent ation of the model is available this button displays how the model will appear in print along with Subject Au thor and Prepared For fields configured in the Details View of the model the date and comments Once you select the Print Preview button the Print button becomes active To exit the Print Preview display change the Tree selection to a different view Image Capture button Saves the image to a file png jpg tif omp eps Target System Mechanical APDL Y i gt i Mechanical APDL Target System feature please see the Export Specifications section Re
2. 3 D Linear Quadrilat ASI4 S4 S4R S4RS S4RSW S4R5 DS4 M3 SHELL181 eral D4 M3 D4R MCL6 R3 D4 SFM3 D4 SFM3 D4R SFMCL6 F3 D4 3 D Quadrilateral GK3 D4L p 168 GK3 D4LN p 168 SHELL181 Gasket 2 D Quadratic Quad CPE8 CPE8H CPE8R CPE8RH CPS8 CPS8R PLANE183 rilateral CPEG8 CPEG8H CPEG8R CPEG8RH CPE8T CPE8HT CPE8RT CPE8RHT CPS8T CPS8RT CPEG8T CPEG8HT CPEG8RHT DC2 D8 DC2 D8E CPE8P CPE8PH CPE8RP CPE8RPH AC2 D8 CPE8E CPE8RE CPS8E CPS8RE Axisymmetric Quad ratic Quadrilateral CAX8 CAX8H CAX8R CAX8RH CGAX8 CGAX8H CGAX8R CGAX8RH DCAX8 DCAX8E CAX8T CAX8HT CAX8RT CAX8RHT CGAX8T CGAX8HT CGAX8RT CGAX8RHT CAX8P CAX8PH CAX8RP CAX8RPH ACAX8 CAX8E CAX8RE CAXA8N CAXA8HN CAXA8RN CAXA8RHN CAXA8PN CAXA8RPN PLANE183 KEYOPT 3 1 Linear Tetrahedral C3 D4 C3 D4H C3 D4T DC3 D4 DC3 D4E SOLID185 AC3 D4 C3 D4E Linear Wedge C3 D6 C3 D6H C3 D6T DC3 D6 DC3 D6E SOLID185 AC3 D6 C3 D6E SC6R Wedge Gasket GK3 D6 p 168 GK3 D6N p 168 SOLID185 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 167 Import Specifications ABAQUS Element ABAQUS Element Type Exported Mechanical APDL Ele Type Category ment Type GK3 D12M p 168 GK3 D12MN p 168 SOLID186 Linear Hexahedral C3 D8 C3 D8H C3 D8I C3 D8IH C3
3. Static Structural Samcef Geometry Connect to downstream Static Structural Samcef system with a Transfer connection from the Model cell to the Geometry cell Steady State Thermal Static Structural Samcef Model Steady State Thermal Engineering Data Connect to downstream Static Structural Samcef system with a Transfer connection from the Model cell to the Model cell Inserts downstream Steady State Thermal system with a Transfer connection from the Model cell to the En gineering Data cell Steady State Thermal Geometry Connect to downstream Steady State Thermal system with a Transfer connection from the Model cell to the Geometry cell Steady State Thermal Model Connect to downstream Steady State Thermal system with a Transfer connection from the Model cell to the Model cell Thermal Electric Thermal Electric Engin eering Data Inserts downstream Thermal Electric system with a Transfer connection from the Model cell to the Engin eering Data cell Thermal Electric Geo metry Connect to downstream Thermal Electric system with a Transfer connection from the Model cell to the Geometry cell Thermal Electric Model Connect to downstream Thermal Electric system with a Transfer connection from the Model cell to the Model cell Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiar
4. Body Grouping Allows you to split a finite element model into multiple bodies based on Materials Element Type Thicknesses or Components None is the default See Grouping Bodies for more in formation Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 43 System Usage in Workbench ID Handling Allows you to select how entity ID numbering will behave during mesh import Options are Automatic Numbering and No Action See Entity ID Numbering p 45 for more information Input meshes from upstream analysis systems have only the ID Handling property and the following additional property except for Mechanical APDL systems which also allow Unit System to be set Source Cell The schematic cell number and analysis system name of the upstream cell that is providing the input mesh Click on the Assembly Mesh cell in the Outline to set the Unit System property for the assembled mesh The Assembly Mesh defaults to the MKS mm unit system Note The Unit System property for the Assembly Mesh cell will not show if no input meshes are specified If there is an input mesh specified and the Unit System property still does not show toggle between the Input Mesh cell and the Assembly Mesh cell to display the Unit System property Removing Meshes from the FE Modeler System There are several ways to remove a mesh from t
5. Finite Element Modeler Inserts downstream Finite Element Modeler system with a Transfer connection from the Model cell to the Model cell Fluid Flow Blow Molding Polyflow Geometry Connect to downstream Fluid Flow Blow Molding Polyflow system with a Transfer connection from the Model cell to the Geometry cell Fluid Flow Blow Molding Polyflow Mesh Connect to downstream Fluid Flow Blow Molding Polyflow system with a Transfer connection from the Model cell to the Mesh cell Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 56 Link FE Modeler to Other Workbench Systems Fluid Flow Extrusion Polyflow Geometry Connect to downstream Fluid Flow Extrusion Poly flow system with a Transfer connection from the Model cell to the Geometry cell Fluid Flow Extrusion Polyflow Mesh Fluid Flow CFX Geo metry Connect to downstream Fluid Flow Extrusion Poly flow system with a Transfer connection from the Model cell to the Mesh cell Connect to downstream Fluid Flow CFX system with a Transfer connection from the Model cell to the Geometry cell Fluid Flow CFX Mesh Connect to downstream Fluid Flow CFX system with a Transfer connection from the Model cell to the Mesh cell Fluid Flow Fluent Geometry Connect to downstream Fluid Flow Fluent sys
6. Linear Buckling Model Connect to downstream Linear Buckling system with a Transfer connection from the Model cell to the Model cell Magnetostatic Magnetostatic Engineer ing Data Inserts downstream Magnetostatic system with a Transfer connection from the Model cell to the Engin eering Data cell Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 57 System Usage in Workbench Magnetostatic Geo metry Connect to downstream Magnetostatic system with a Transfer connection from the Model cell to the Geometry cell Mechanical APDL Magnetostatic Model Mechanical APDL Connect to downstream Magnetostatic system with a Transfer connection from the Model cell to the Model cell Inserts downstream Mechanical APDL system with a Transfer connection from the Model cell to the Ana lysis cell Mechanical Model Mechanical Model En gineering Data Inserts downstream Mechanical Model system with a Transfer connection from the Model cell to the Engin eering Data cell Mechanical Model Geometry Connect to downstream Mechanical Model system with a Transfer connection from the Model cell to the Geometry cell Mechanical Model Model Connect to downstream Mechanical Model system with a Transfer connection from the Model cell to the Model cell Mesh Geometry Connect to down
7. The Mechanical application contains components corresponding to Named Selections for loads and supports ABAQUS contain node and element sets ABAQUS contain node and element sets for loads and boundary conditions Components are also created by FE Modeler for loads and boundary conditions not defined by a set NASTRAN may contain components that automatically group features of interest such as rotated nodes or features that are only partially supported such as elements with variable thickness non zero material orientation angles etc Loads and boundary conditions also define components Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 29 User Interface A Mechanical APDL archive file CM and CMGRP commands Component names in FE Modeler are the same as the entity names in the Mechanical application ABAQUS sets and in the Mechanical APDL Commands NASTRAN components are named by FE Modeler For Generated Data or when transferring the model to the Mechanical APDL application any characters that Mechanical APDL component names do not allow are replaced with an under score If the name starts with a space or a number a prefix FEM is added automatically Please see the Components and Assemblies section for information about how to create components and assemblies in FE Modeler Constraint Equat
8. Thecknesses Layered Compostes Rod Properties Bar Properties Beam Properties Curved Pipe Properties Mass Properties Spring Properties E CATE T Components Contacts Spot Welds Constrart Equations Constramts Forces Pressures TABLE 2 Bodies Summary Body Name Nodes Elements FEAB system 9 1 TABLE 3 Element Types Summa Generic Element T Name Mechanical APDL Name NASTRAN Name ABAOUS Name STL Name Linear Hexahedron Sold185 CHEXA C308 NIA TABLE 4 issues Raised by the Import Process i File TY PEAB systen inp 2 Unhandled Keyword Type SOLID SECTION ELEET EALL COMPOSITE 3 Unhandled Keyword Type CLOAD CYCLIC MODE 4 At least 1 element vas infide out and corrected Generated Data View The purpose of the Generated Data view is to e Illustrate the export data processed during the FE Modeler session The format of the data is controlled by the toolbar field Target System The data may then be saved by the toolbar button Write Solver File Coordinate Systems View The purpose of the Coordinate Systems view is to provide A listing of all coordinate system definitions and values present in the model A visualization of the location and orientation of coordinate systems Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 11 User Interface Model A2 S Imp
9. Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 125 Mesh Metrics Tool the elements that meet the criteria values covered by the selected bars In this case the Displayed Metric Range detail indicates the range of the displayed metric Note The location of the bar along the x axis is the mid point of the range of metric values covered by that bar Ge B Node Linear Hexahedar 8 Node Linear Wedge s 4 Nose Linear Thangs Shall ear Q 21 10 T e E Mesh Metric Type Element Quality Quality Factor Range Miriam vale 0 6562 Maximum Value 0 99691 Of Entre Model Displayed Metric Range Minium Wake 0 6582 16 00 Mudnmum Value 0 99691 Mesh Data 5 12 00 Number of Eenents 206 2 Options 8 00 Use Unsigned Vol Fake s V Axis Option Percent Voune Area j w 4 00 0 00 00 5 0 75 li Bement Metrics Percent Surface Area Volume The X axis represents the value of the selected mesh metric and the Y axis represents the percentage of the volume of the model represented by each bar The graph can be filtered based on bodies from the Mechanical application and element shapes The height of a bar in the chart can represent either the number of elements or the percentage of the total volume represented by the elements that have a particular quality factor range For example a model could have a large numb
10. Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 35 36 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates FE Modeler Basic Workflow The following steps summarize the typical workflow when using FE Modeler Subsequent sections describe additional tasks for exploring the data and for adding named components to the FE model 1 Use Workbench to Open or Create an FE Modeler System p 40 2 Use Workbench to Link FE Modeler to Other Workbench Systems p 46 3 Use the FE Modeler Editor to review the Import Summary report During import FE Modeler dynamically builds a report summarizing the information obtained from the meshes that were imported The report also includes a list of issues raised during the import process Carefully review these issues to determine their effect on the FE model 4 Use the toolbar to print the report or export the document as an HTML file 5 Export the model using the Target System drop down list on the toolbar and select one of the following templates Mechanical APDL Default ABAQUS NASTRAN e STL Template Customizable option for one of the above output selections 6 Optional Create a geometry from the finite element mesh using the Geometry Synthesis feature
11. and its subsidiaries and affiliates 8 9 ANSYS Mesh Morpher Graphics For the rotation we must enter a rotation axis that can be defined by selecting either a point and a vector or two points We will use two points and then we will enter a rotation angle Verify that the Type of Selection field is defined as Two Points In the Details View under Rotation axis select the Click to define option of the Point Selection field For the first point select the corner of the model where the two parts join and then click the Apply button Details View q E Rotation axis Type of selection Two points Point selection Apply Definition Angle gradation Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 95 Geometry Synthesis Graphics 10 For the second Point Selection field in the Details View select the Click to define option For the second point select the opposite corner and then click the Apply button Details View Geometry Rotation axis Type of selection Two points First Point 0 2 First Point 0 Point selection Click to define Y Second Point 2 Second Point 0 Point selection Tms p Angle gradation Degrees Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 96 of ANSYS Inc and its subsidiaries
12. associated with the first node will be stored with the definition The DOF for the second node used with SPRING2 elements is ignored Supported Loads Boundary Conditions Keywords BOUNDARY supported Parameter TYPE DISPLACEMENT is only supported The following boundary condition types are supported ENCASTRE gt PINNED gt XSYMM YSYMM gt ZSYMM gt XASYMM YASYMM Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 163 Import Specifications gt ZASYMM e CLOAD Defined component only Forces and moments No parameter label supported DLOAD Pressure loading only as signified by Pn where n is the face ID Supported Contact Keywords CLEARANCE Only the parameters SLAVE MASTER and VALUE are supported CONTACT PAIR EXTENSION ZONE parameter supported TIED parameter supported ADJUST parameter supported Contact and target elements are defined using minimal settings Note Contact definition is composed of three parts 1 The first is the contact interaction name for that contact pair specified on the CONTACT PAIR command and used in the SURFACE INTERACTION card 2 The second part is the Slave set name 3 The third is the Master set name Each part of the contact name is separated by an underscore For example the ABAQUS command sequenc
13. e Shell Element Orthotropic Structural properties MATS8 p 156 e Isotropic thermal properties MAT4 p 156 STL as the Target System It should be noted that a mesh exported as an STL file will only contain the coordinates of nodes in the mesh Properties not included in the STL format such as materials loads etc will be lost It should also be noted that the STL will be exported as a surface triangular mesh Even if the original mesh is not triangular the mesh will be triangulated before being exported as an STL file Template as the Target System When Template is used as the Target System you are prompted to open a customized template that you have created A customized template allows you to control the order in which FE data is written Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 176 of ANSYS Inc and its subsidiaries and affiliates Template as the Target System out In addition you can also intersperse commands with a template that are not supported by FE Modeler to perform advanced modeling or provide analysis controls Note STL meshes are not supported by template target systems in 12 x Shown below are the commands contained in the Workbench provided default template for each of the supported target systems that you will use as the basis for a customize template In addition samples of the template are provided Commands to Include i
14. laws warranties disclaimers limitations of liability and remedies and other provisions The software products and documentation may be used disclosed transferred or copied only in accordance with the terms and conditions of that software license agreement ANSYS Inc is certified to ISO 9001 2008 U S Government Rights For U S Government users except as specifically granted by the ANSYS Inc software license agreement the use duplication or disclosure by the United States Government is subject to restrictions stated in the ANSYS Inc software license agreement and FAR 12 212 for non DOD licenses Third Party Software See the legal information in the product help files for the complete Legal Notice for ANSYS proprietary software and third party software If you are unable to access the Legal Notice please contact ANSYS Inc Published in the U S A Table of Contents Role im ANSYS WOrk Dennehy issii visa negates nade venus anenqnntinns vase puts naa pad yaubadadvinenspaxivasnsvegnenn a aa a a aiai 1 FE Modeler Licensing sssrds aeei ven ngs nats a aE vp a aaee e aA io eai iE 1 Using Localization in a Linux Installation sisi lessvnevagsersaialss paws asnepisuie Snag sulnestanabalese puna sougeasdwapatie lan vahe ab aalonaleading 2 User Inter face ieii epe orinni EnEn E ENa rE ENEE EENE TEKEREK linen EEE Na ESAK Eaa EEEa 3 Main MENU i cevcinins cnc eetiaes tee cavesiensnen ri risiti aniei reni ENEE EEE NEEN EEEN NEETER
15. All rights reserved Contains proprietary and confidential information 70 of ANSYS Inc and its subsidiaries and affiliates Skin Detection Tool then the two elements are in the same component otherwise they are separ ated The default Tolerance Angle is 15 Forbid Close Compon __ If activated this special algorithm cuts the closed surfaces into several com ents ponents It provides a simple method to avoid problematic faces on closed surfaces Cut Angle Only displayed if Forbid Close Components equals Yes It is the angle used in the above algorithm to separate the elements into components If Algorithm is Detection by curvature Option Field Description Sharp Edges Angle During the SDT process if the angle between the normals of two adjacent elements is more than or equal to the Sharp Edges Angle then the edge shared by the two elements is used to compute the component s boundary Ignore the Secondary Select Yes if you wish to drop the secondary nodes Nodes Planes Tolerance Angle This option allows the user to detect the planes in the mesh If the angle between the normals of two adjacent elements is less than or equal to the Planes Tolerance Angle then the two elements are in the same component Treeview Display Category Option Field Description Display all SDT Components treenodes If Yes all SDT component treenodes are displayed in the Outline Number of SDT Components treenod
16. D6E CPE6MP CPE6MPH AC2 D6 CPE6E CPS6E Axisymmetric Quad ratic Triangle CAX6 CAX6H CAX6M CAX6MH CGAX6 CGAX6H CGAX6M CGAX6MH DCAX6 DCAX6E CAX6MT CAX6MHT CGAX6MT PLANE183 KEYOPT 3 1 166 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates ABAQUS Keyword Specifications ABAQUS Element Type Category ABAQUS Element Type Exported Mechanical APDL Ele ment Type CGAX6MHT CAX6MP CAX6MPH ACAX6 CAX6E 2 D Linear Quadratic CPE4 CPE4H CPE4I CPE4iH CPE4R CPE4RH CPS4 CPS4I CPS4R CPEG4 CPEG4H CPEG4I CPEG4IH CPEG4R CPEG4RH CPE4T CPE4HT CPE4RT CPE4RHT CPS4T CPS4RT CPEG4T CPEG4HT CPEG4RT CPEG4RHT DC2 D4 DCC2 D4 DCC2 D4D DC2 D4E CPE4P CPE4PH CPE4RP CPE4RPH AC2 D4 AC2 D4R CPE4E CPS4E WARP2 D4 PLANE182 2 D Quadratic Gasket GKPS4 GKPE4 GKPS4N INTER192 GKPS6 GKPE6 GKPS6N INTER193 Axisymmetric Linear Quadratic CAX4 CAX4H CAX4I CAX4IH CAX4R CAX4RH CGAX4 CGAX4H CGAX4R CGAX4RH DCAX4 DCCAX4 DCCAX4D DCAX4E CAX4T CAX4HT CAX4RT CAX4RHT CGAX4T CGAX4HT CGAX4RT CGAX4RHT CAX4P CAX4PH CAX4RP CAX4RPH ACAX4 ACAXAR CAX4E CAXA4N CAXA4HN CAXA4RN CAXA4RHN PLANE182 KEYOPT 3 1 Axisymmetric Quad ratic Gasket GKAX4 GKAX4N INTER192 KEYOPT 3 1 GKAX6 GKAX6N INTER193 KEYOPT 3 1
17. DCCAX2 DCCAX2 D ASI2A SAX1 DSAX1 FAX2 MAX1 MGAX1 RAX27 p 168 SFMAX1 SFMGAX1 SAXA1N SHELL208 Axisymmetric Line Gasket GKAX2 p 168 GKAX2N p 168 SHELL208 3 D Linear Line DC1D2 DCC1D2 DCC1D2 D DC1D2E AC1D2 B31 B31H B33 B33H PIPE31 PIPE31H B310S B310SH GAPUNI GAPCYL GAPSPHER GAPUNIT DGAP ELBOW31 EL BOW31B ELBOW31C FLINK FRAME3 D RB3 D2 p 168 T3 D2 T3 D2H T3 D2T T3 D2E CONN3 D2 JOINT3 D JOINTC BEAM188 3 D Line Gasket GK3 D2 p 168 GK3 D2N p 168 BEAM188 2 D Quadratic Line ASI3 B22 B22H PIPE22 PIPE22H T2 D3 T2 BEAM188 D3H T2 D3T T2 D3E Axisymmetric Quad ASI3A SAX2 DSAX2 SAX2T MAX2 MGAX2 SHELL208 ratic Line SFMAX2 SEMGAX2 SAXA2N 3 D Quadratic Line DC1D3 DC1D3E AC1D3 B32 B32H PIPE32 BEAM188 PIPE32H B320S B320SH ELBOW32 T3 D3 T3 D3H T3 D3T T3 D3E 2 D Linear Triangle CPE3 CPE3H CPS3 CPEG3 CPEG3H CPE3T PLANE182 CPS3T CPEG3T CPEG3HT DC2 D3 DC2 D3E AC2 D3 CPE3E CPS3E WARP2 D3 Axisymmetric Linear Triangle CAX3 CAX3H CGAX3 CGAX3H DCAX3 DCAX3E CAX3T CGAX3T CGAX3HT ACAX3 CAX3E PLANE182 KEYOPT 3 1 3 D Linear Triangle _ STRI3 S3 S3R S3RS DS3 F3 D3 M3 D3 R3 SHELL181 D3 p 168 SFM3 D3 2 D Quadratic Tri CPE6 CPEGH CPE6M CPE6MH CPS6 CPS6M PLANE183 angle CPEG6 CPEG6H CPEG6M CPEG6MH CPE6MT CPE6MHT CPS6MT CPEG6MT CPEG6MHT DC2 D6 DC2
18. EE NEE N TETEE a 4 Standard Toolbar ss annir e a esaia a as a e vada anh a abe nada Tua AA Ee EEEE TEER ented 5 Element Selection Toolbar niee eea aaao NE KA a AE V A Ea Ee a a A eE AE AER EEn 6 Display TOMA ys si cis oes codecs a aaa aa Eana Tea Aes aa Eea a a eas tg ema eai 6 Geometry Synthesis To l bamsan a n e a Grenada iis E A TNN TERA 7 RES Q tline View Types rises aer e a e e e eiaa a e a ea eae aad ence ate a 9 Import Summary VIEW ersersrriresiieiiii iei iii E a EEE EO EEE 10 Generated Data VIEW ssns aiie en ana E i e Ea A banda a E iea a Ea A Taia aa 11 Coordinate Systems VIEW seas ieni gs a i edad A EE E E E a EEE 11 Elem nt Types ViEW is inii iiie i ai eae e datas eea aiar aae dn Eo EEEa a ai de oaeiai 12 BOGIGS E E E E E E E E E T 13 CONTACTS VIEW Korna e A T crag E A E A E E e A E E EON 16 M terials VIEW eiiie nene a TEE E OE E A uae Radeon R Aa EG 17 Thieknesses VieWicnesronnn nanie naa e E sera E EN e a E aiek 19 R d Properties ViGW meneere ee Ei ER NEE E E EEE E E E E E 20 Beam Properties VIOW wsisisiisssusssebsesvicecatundbapinssiioassdevasbeeasecossdansdabanssitesadensans sea veussadanicussesssusoasedseedsbs 21 Bar Pr pertiesVieW nnurmine ana eie E EEE E EEEE EEE ES 23 Mass Properties VIEW Sar seez nias o aiae TE na AEA NE erT E EA ETEA E E E EA A N 26 Spring Properties VIOW eere ae sued sve a buss sos eA Ea AENEAN ER DEEA Ka ESO EARAITI CDER TESES 27 COMPOSITES VIEW nrerin e ii T TAE E RE EE EE E E ET REEN a eat 28 Components
19. Ratios for Quadrilaterals A quadrilateral or brick has a Jacobian ratio of 1 if a its opposing faces are all parallel to each other and b each midside node if any is positioned at the average of the corresponding corner node loca tions As a corner node moves near the center the Jacobian ratio climbs Eventually any further movement will break the element Figure 18 Jacobian Ratios for Quadrilaterals p 136 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 135 Mesh Metrics Tool Figure 18 Jacobian Ratios for Quadrilaterals 1000 Warping Factor Warping factor is computed and tested for some quadrilateral shell elements and the quadrilateral faces of bricks wedges and pyramids A high factor may indicate a condition the underlying element formulation cannot handle well or may simply hint at a mesh generation flaw Warping Factor Calculation for Quadrilateral Shell Elements A quadrilateral element s warping factor is computed from its corner node positions and other available data by the following steps 1 An average element normal is computed as the vector cross product of the 2 diagonals Figure 19 Shell Average Normal Calculation p 136 Figure 19 Shell Average Normal Calculation 2 The projected area of the element is computed on a plane through the average normal the dotted outline on Figure
20. Supported by FE Modeler Supported General Keywords ASSEMBLY Only the first instance defined in a model is read in All other instances and data are ignored Element and node sets as well as materials associated with this instance are also processed INCLUDE supported Only 1 level deep supported INSTANCE Only the first instance of a part will be processed END ASSEMBLY END PART END INSTANCE PARAMETER supported Independent parameters only constants Note These parameters are not stored and used in the Mechanical APDL application the values are substituted on the fly PART Only the first instance of a part is processed TRANSFORM supported Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 158 of ANSYS Inc and its subsidiaries and affiliates ABAQUS Keyword Specifications SYSTEM SURFACE NAME parameter supported TYPE parameter supported gt TYPE ELEMENT supported gt Element id set and surface id supported gt TYPE NODE supported Node id set supported SURFACE DEFINITION NAME parameter supported Element id and surface id only supported NSET NSET parameter supported GENERATE parameter supported INSTANCE parameter supported If the name matches the processed instance the set will be processed List of node sets supported ELSET ELSET parameter supported GENERAT
21. Therefore any preexisting information about materials components or boundary conditions is preserved To export the current shape of the Parameterized Mesh apply the deformation on the original FE mesh using the Update FE Modeler Mesh feature Then you can use the Export feature of FE Modeler Please note that an updated mesh in FE Modeler can only be used to export data to the Mechanical APDL application NASTRAN STL or ABAQUS Specifically when you execute the Update FE Modeler Mesh feature any subsequent Geometry Synthesis operations still use the mesh that was originally imported into FE Modeler For example if you update an FE Modeler Mesh and then update an initial geometry by changing the Skin Detection tolerance angle the geometry created is based on the original mesh not the updated mesh visible in FE Modeler To export a transformed mesh 1 Select the Parameterized Mesh object 2 Click the Update FE Modeler Mesh button on the toolbar or right click the mouse and select Update FE Modeler Mesh 3 Select the desired format from the Target System menu 4 Click the Export button on the toolbar Note Upon completion of mesh morphing it is recommended that you verify the quality of the resulting mesh using the Mesh Metrics Tool Transformation Examples The following examples examine transformation techniques The input files for the examples can be found in your ANSYS installation as indicated in the examples o
22. a rotation of 90 degrees a Select the Target Configuration tree object b Select the New Design Point toolbar button c Click the Transformation drop down menu and select Rotation d Select the outside surface and click the Apply button in the Geometry field of the Details View A Rotation transformation is applied to the surface e Select the same rotation axis as before using the same two points f In the Details View of the Rotation object enter 90 as the Angle press the Enter key and then click Generate the Design Point Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 99 Geometry Synthesis Graphics Three design points have been created that represent the three states of our desired geometry Now we need to associate each design point with a different value of the parameter By default the value of the parameter is set to the value of the first transformation for each design point In our case the angle of rotation as shown below and these angles are the values that we can modify Design Point 30 Details View a Definition Associated P Mesh Morpher 1 Parameter v 30 Design Point 60 Details View A Definition Associated P Mesh Morpher 1 Parameterv 0 OOOO Design Point 90 100 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential in
23. applications Transfer Geometry to a Workbench Application You can transfer a Parasolid representation of geometry in FE Modeler to a Geometry cell see FE Modeler Parasolid Geometry Creation p 119 or you can transfer a Faceted representation of the Geometry to a Model cell see Link FE Modeler to Other Workbench Systems p 46 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 80 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Update a Model in the Mechanical Application with New Parameter Values If at least one Target Configuration is available in FE Modeler it means that FE Modeler has exposed a parameter that can be used to perform Parametric Studies This type of study allows you to update the geometry and mesh in the downstream cells and thus in their editors the Mechanical application 1 In the Workbench Project Schematic double click on a Parameter Set cell to open the Parameter Set 2 Change the values of the parameters available in FE Modeler Name parameter is set to Mesh Morpher by default 3 Update the downstream cell system or project or you can create design points and update all of them Generate Legacy Commands in FE Modeler You can export a morphed mesh to the Mechanical APDL application NASTRAN STL or ABAQUS The morphing process updates the node coordinates only and does not change any other FE information
24. based on Parasolid or SAT do not support parameters In such instances you can take the mesh from the Mechanical application to FE Modeler and parametrize the mesh Important It is important to note that in this case you need to follow a two step procedure to support the parameter ization 1 Transfer the Mechanical application mesh to FE Modeler and export the data to a legacy format and 2 Import the Mechanical APDL mesh as a separate project into FE Modeler create the geometry and then proceed back to the Mechanical application Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 65 Geometry Synthesis Limitations and Recommendations This feature has the following limitations Geometry transformations specified to create target configurations should be restricted to reasonably small geometry changes Because the mesh morphing process only moves existing nodes it is possible to get warped or otherwise unacceptable element shapes Upon completion of mesh morphing it is recommended that you verify the quality of the resulting mesh using the Mesh Metrics Tool When attaching FE Modeler generated geometry only one Model branch is allowed in the Mechanical application Outline Because of this operations such as duplicating a model or inserting a new model are not allowed in the Mechanical application The following section
25. data you must select the same unit system as the original model because the unit system is used to interpret material property values in Engineering Data For example if you choose the MKS system Engineering Data interprets the imported material properties in the MKS system Note Generated Data always uses the same unit system as the imported data Therefore if you use FE Modeler as a translator the property values are the same as those of the imported file For example if a source file contains a Young s Modulus of 1e7 then the Generated Data always creates a Young s Modulus of 1e7 regardless of the unit system chosen The material properties of imported models are assumed to have a consistent unit system However in some unit systems this may cause the values displayed in Engineering Data to be different than the one in the imported file For example if a density value of 0 00073 in U S Customary Inch units is read in from an ABAQUS input file this value gets multiplied by 386 4 and a value of 0 282072 Ibm in is displayed in Engineering Data FE Modeler supports Reference Temperature as a material property but unlike the Mechanical application does not support a global reference temperature Custom Unit System for Materials Custom unit systems can be created and used to import Mechanical APDL NASTRAN or ABAQUS files if the data does not match the unit systems available in Workbench Release 15 0 SAS IP Inc
26. general Update on the Project when these two conditions happen This link break is made to protect your data within FE Modeler from being erased from such an operation You should also note that if you have a link to an upstream system and you have modified the FE model you won t be able to issue an Update on the Multiple Design Points or on the Project If you perform an update on the FE Modeler system or FE Modeler Model cell you will get a warning asking you to verify the FE Modeler study after the Update Linking Behavior with FE Modeler The FE Modeler system can be linked to many other analysis systems using both upstream and down stream connections Many of these connections can be made from the right click context menu Con nections can also be made by dragging an FE Modeler system on to any system cell indicated in the table for an upstream connection dragging an analysis system on to the FE Modeler system for a downstream connection or dragging the cells from one system to another Note Not all of the connections listed in Table 1 Transfer Data From New p 54 and Table 2 Transfer Data To New p 56 are achievable using the Transfer Data From New and Transfer Data to New context menu options For items listed in these tables but not available in the context menu options you must manually create these links using one of the other methods described above Release 15 0 SAS IP Inc All rights reserved Co
27. modes you can drag the cursor over a region of adjacent elements to paint select the group of elements Moving the cursor too quickly may cause sporadic selection due to system processing limitations In combination with the Selection Mode menu choose to select nodes element faces or elements The status bar at the bottom of the Graphics pane displays a count of the selected elements and nodes Select Nodes selects one node to display its properties Multiple nodes may be selected by holding the Ctrl key and then clicking multiple nodes Select Element Faces selects one element face to display its properties Multiple element faces may be selected by holding the Ctrl key and then clicking multiple element faces In addition similar to Drag select you may paint select a group of elements Select Elements selects one element to display its properties Multiple elements may be selected by holding the Ctrl key and then clicking multiple elements In addition to toolbar options you may also use the right mouse button to quickly display selection options Place your cursor in the Graphics Window right click the mouse and choose Cursor Mode Display Toolbar TARAR a FAAI AN Q Oe Displays tools include the following Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 6 of ANSYS Inc and its subsidiaries and affiliates Geometry Synthesis Toolbar Icon B
28. mouse and selecting the Delete option Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 63 64 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates FE Modeler Geometry Synthesis Geometry Synthesis is an FE Modeler feature that allows you to generate a geometry from a finite element model and given the ANSYS Mesh Morpher license to then make relatively small changes or transform ations to the new geometry To ensure proper mesh quality the extent of these transformations must be limited The geometry based on the original finite element mesh is referred to as an Initial Geometry This geometry and its associated mesh can be transferred to other Workbench applications such as the Mechanical application or the Meshing application In addition you can modify the initial geometry using transformations such as a face offset or an edge translation Such transformations are associated with parameter s You can modify the initial geometry simply by changing these parameter values in the Parameter Workspace Such parameter changes when applied not only create a new geometry configuration but also morph the original finite element mesh to match the new geometry Note than only node locations from the original mesh are move
29. perform additional steps described in Chapter 2 of the ANSYS Inc Linux Installation Guide in order for FE Modeler to recognize the correct numerical format Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 2 of ANSYS Inc and its subsidiaries and affiliates FE Modeler User Interface This section examines the functional elements of the FE Modeler user interface A screen capture of the FE Modeler window is shown below FE A2 FE Model ANSYS FE Modeler ANSYS Multiphysics File View Insert Tools Help I is Export I g amp nt Print Preview ir Target System Mechanical APDL Component tliAa Al RRROS QQ QiG Q a 2 lala x9 ca Geometry Synthesis Initial Geometry EB Associate with a Geometry Graphics Model 42 Import Summary 4 gt Generate Data gt Element Types 5 3 Bodies 1 S Materials 3 S Thicknesses 5 Ein Components 1 E E Geometry Synthesis Details View Definition Mesh Morph Automatic F Create hire Yes x po Current selection delemenf ff The functional elements of the interface include the following Interface Element Description Main Menu Includes the basic menus such as File and View Standard Toolbar This toolbar contains commands commonly used by FE Modeler Element Selection Toolbar This toolbar contains commands
30. specific to making element selections Display Toolbar This toolbar contains commands to modify how you view the model Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 3 User Interface Interface Element Description Geometry Synthesis Toolbar Undo and Redo Toolbar These toolbar options are presented during Geometry Synthesis Only available for Geometry Synthesis operations These two toolbar buttons allow you to undo 2 or redo L the last Geometry Synthesis modification applied Tree Outline View Types Main Menu resentation The Main Menu includes the following items File View Insert Tools Help Menu Command Function The Tree Outline displays the available view types for the model These expandable subsets of data provide additional details about the individual aspects of the finite element rep Description File Save Project Saves the project as a Workbench Pro ject file wbp 4 database Export Allows you to save the FE Modeler fedb database under a different name and to a different path location Close FE Modeler Application Exits the FE Modeler session Triad Toggles the visibility of the axis triad in the graphics window Ruler Toggles the visibility of the visual scale ruler in the graphics window Visualiz
31. the FE Modeler Editor the meshes will be imported into FE Modeler Note You can import a singe mesh file multiple times in order to have multiple independent copies of that mesh in your assembly Each of these copies can have its properties set indi vidually The following screen shots show some examples of meshes that have been added to an FE Modeler system Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 41 System Usage in Workbench Project Schematic lt Outline of Schematic E Ew Q From cell 44 77 Static Structural ANSYS 2 Engineering Data vi j Ea EE dil c2 3 Gi Geometry Voa Ea N Projection_Mesh 4 wy Model ie 5 a Setup Pa 6 amp Solution Pa 7 Results Pa Unit Static Structural ANSYS System Metric k v amp Advanced Geometry Opti Analysis Type General 3D v Ea Importation 3 5 im T FE CellID Model 1 model a Finite Element Modeler il gt Open an Existing Project To open an R12 0 or R12 1 project containing an FE Modeler system simply select Open from the File menu Elements in R12 projects will be migrated to the R12 1 environment if necessary migration messages may be displayed Note If the Model cell of an FE Modeler system in an imported R12 0 project contains an initial geomet
32. types of data e Engineering Data containing the Material information Mesh Data containing the Mesh Geometry Data containing the Generated Geometry from the Mesh either using a Faceted or a NURBS Parasolid representation Mechanical APDL Input File Data containing the necessary data Mesh and BC s to use in a Solver Note After the links between the systems are created you must do an update of an upstream FE Modeler system right click on the Model cell and select Update This helps avoid getting an error message when editing the downstream analysis system Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 46 of ANSYS Inc and its subsidiaries and affiliates Link FE Modeler to Other Workbench Systems FE Modeler Connections to Other Analysis Systems The following sections provide a visual overview of various types of links that are possible with FE Modeler along with the data transfers that occur with these links For a more detailed explanation of all possible FE Modeler links and the behaviors associated with these links see Linking Behavior with FE Modeler p 53 The links described in the following list detail how individual systems link to an FE Modeler system It is possible to make multiple upstream connections to an FE Modeler system in addition to inputting multiple files to an FE Modeler system FE Modeler will create an Assembly Mesh out of all
33. value of 45 Target Configuration Therefore a single Target Configuration is too simple It is necessary to use several Design Points so that we can define several states of the geometry to more accurately interpolate the function A Target Configuration is always controlled by one parameter and when multiple Design Points are used we can indicate a Parameter value for each geometry Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 92 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher For this example we will define the following three Design Points Note that the Initial Configuration represents two surfaces at 0 degrees but the surfaces are shown several degrees apart so they can be distinguished from one another Initial 30 Degrees 60 Degrees 90 Degrees Config uration The steps to complete this transformation are as follows 1 Create a Mesh system in the Workbench Project Schematic 2 In the Geometry cell of the Mesh system import the geometry located at ANSYS Inc v150 ATSOL Samples FEModeler usecase2 agdb 3 Drag and drop a FE Modeler component system from the Toolbox to the Mesh cell of the Mesh system This will link the Mesh system Mesh cell to the FE Modeler system Model cell 4 Update the Project and edit the FE Modeler system 5 C
34. 0 SDT Component 135 Ws SDT Component 187 Ws SDT Component 188 W spT Component 189 WS SDT Component 190 spT Component 191 E Geometry Synthesis V amp Skin Detection Tool Yep SDT Component 128 Yep SBT Component 129 xj 3 Once you have added all desired components that were created with the first Skin Detection Tool right click on the Skin Detection Tool and select Clear skin components to remove all unwanted components 4 Change the Skin Detection Tool settings in the Details view to a desired configuration the select Create skin components to create skin for all remaining sections of the mesh that were not added to the Components list with the first Skin Detection Tool 5 Repeat steps 2 3 and 4 with the newly created list of SDT Components Re configure the Skin Detection Tool settings in the Details view create skin components and add SDT components to the Components list until you have finished segmenting the mesh Working Geometries The Working Geometries feature allows you to import external geometry files in to FE Modeler and perform the following Associate the external geometry with the current mesh import the geometry in the Mechanical application and perform an analysis using the legacy external data mesh Use an external geometry as a projection geometry for the Projection transformation To Import an External Geometry as a Working Geometry 1 Highlight the Working Geometries tree object 2 C
35. 0 However once you change the Design Point parameter value then the range of variation of the para meter in the Parameter Workspace is changed For example if you have a Design Point with a parameter value of 100 then the range of variation in the Parameter Workspace is 0 to 100 If you change the parameter value in the Design Point to 10 then the Parameter Workspace range is modified to 0 to 10 Multiple Design Points Nonlinear Geometry When multiple Design Points are present within a Target Configuration you can assign a different parameter value to each Design Point For example say you want to change the radius of a cylindrical face In the first design point you offset the face by 20 and give a parameter value of 1 In the second design point you offset the face by 60 and give it a parameter value of 2 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 77 Geometry Synthesis In this case when you update the Parameterized Configuration with a parameter value of 0 5 you will get an offset of 10 If you give a parameter a value of 1 5 you will get an offset of 40 This technique allows you to create a nonlinear rate of change Parameterization Parameters control Design Point transformations When multiple transformations are required they can be applied to one Target Configuration or individual transformations can be appl
36. 000003 t Yarying Thickness 140000004 t Yarying Thickness 140000005 t Yarying Thickness 140000006 t Yarying Thickness 140000007 Varying Thickness 140000008 varying Thickness 140000009 Details View General Thickness 5 06e 002 Orientation Angle o Offset Nonstructural Mass Note Displayed only if thicknesses are present in the model For thickness properties from Mechanical systems thicknesses correspond to the Thickness property under Parts thickness ID numbers are assigned by FE Modeler A Mechanical APDL archived file thickness ID numbers are assigned by FE Modeler NASTRAN PSHELL and PSHEAR cards thicknesses for a single mesh import or for the first mesh to be imported retain their original ID numbers ABAQUS MEMBRANE SECTION SHELL GENERAL SECTION SHELL SECTION keywords thickness ID numbers are assigned by FE Modeler Colors in the graphics display differentiate thicknesses Rod Properties View The purpose of the Rod Properties view is to provide a e Listing of rod properties Only Area and Non structural Mass are valid Grouping of rods with identical properties e Visualization of rod elements within a model Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 20 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types Filter for element selection for speci
37. 002 a Bar Property 9102 a Bar Property 9103 Details View General Area lyy Izz Torsional Constant 1 23e 002 Nonstructural Mass il Note Displays only if bar elements are present in the model e For bar properties from A NASTRAN PBAR card bars for a single mesh import or for the first mesh to be imported retain their original ID numbers ABAQUS BEAM SECTION BEAM GENERAL SECTION and FRAME SECTION keywords bar ID numbers are assigned by FE Modeler For additional information please see the table shown below Bar property data can be defined in two ways Either by defining 1 The area and moments of inertia Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 24 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types 2 A shape where the properties are calculated on the fly For this case the following table shows the various shapes supported for different formats and what they are named in the FE Modeler user interface FE Mechanical APDL and Mechanical applica ABAQUS Corresponding Fig Modeler tions re Rod CSOL CIRC 4 _ LI 7 L L L L L Channel JL Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 25 User Interface M
38. 4 19 Shell Element Projected onto a Plane 3 The difference in height of the ends of an element edge is computed parallel to the average normal In Figure 20 Shell Element Projected onto a Plane p 137 this distance is 2h Because of the way the average normal is constructed h is the same at all four corners For a flat quadrilateral the distance is zero Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 136 of ANSYS Inc and its subsidiaries and affiliates Shape Testing Figure 20 Shell Element Projected onto a Plane 4 The area warping factor Fa for the element is computed as the edge height difference divided by the square root of the projected area 5 For all shells except those in the membrane stiffness only group if the thickness is available the thickness warping factor is computed as the edge height difference divided by the average element thickness This could be substantially higher than the area warping factor computed in 4 above 6 The warping factor tested against warning and error limits and reported in warning and error messages is the larger of the area factor and if available the thickness factor 7 The best possible quadrilateral warping factor for a flat quadrilateral is zero Figure 21 Quadrilateral Shell Having Warping Factor p 138 shows a warped element plotted on top of a flat one Only the right hand nod
39. All rights reserved Contains proprietary and confidential information 18 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types For more in formation on Custom Unit Systems refer to Configuring Units in Workbench Note For models based on ABAQUS NASTRAN or Mechanical APDL data for a single mesh import or for the first mesh to be imported materials retain their original ID numbers For models based on NASTRAN or the Mechanical APDL application data the name assigned to the material is Unnamed i where i is an integer starting at 1 e For models based on ABAQUS data materials display their original name from the ABAQUS input Thicknesses View The purpose of the Thicknesses view is to provide a an e Listing of all shell thickness definitions and values present in the model Grouping of thicknesses with identical values e Visualization of elements with thickness attributes Element selection filtered by one or more thicknesses Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 19 User Interface Outline Thicknesses 21 x Constant Thickness 27 lt Constant Thickness 275 t Constant Thickness 276 t Constant Thickness 300 t Constant Thickness 310 t Varying Thickness 140000000 t Yarying Thickness 140000001 t Yarying Thickness 140000002 t Yarying Thickness 140
40. Archive Model gt Write from the Mechanical APDL Main Menu 5 In the dialog choose DB All finite element information from the Data to Archive drop down menu 6 Select the Archive File Name button and then specify the folder location and filename for the cdb file Create a cdb file from a Mechanical system 1 Open your project in Workbench containing the Mechanical system 2 In the Project Schematic create a Mechanical APDL system and link the Mechanical Setup cell to the Mechanical APDL Analysis cell 3 Update the Mechanical system right click on the Mechanical APDL system Analysis cell and choose Edit in Mechanical APDL This opens the Mechanical APDL application user interface 4 Select Preprocessor gt Archive Model gt Write from the Mechanical APDL Main Menu 5 In the dialog choose DB All finite element information from the Data to Archive drop down menu 6 Select the Archive File Name button and then specify the folder location and filename for the cdb file Mechanical APDL Archived File Command Specifications This section defines the Mechanical APDL commands that are supported by FE Modeler for Mechanical APDL archived files General Commands Coordinate Systems Commands Node Commands Element Commands Material Commands Property Commands Note Only the Mechanical APDL archive cdb file using the Blocked format written from the Mechanical APDL application is supported A user created or modified file m
41. Cross Sections Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 128 of ANSYS Inc and its subsidiaries and affiliates Shape Testing As shown in Figure 4 Pyramid Element Cross Section Construction p 129 each pyramid cross section is constructed by passing a plane through one of the base edges and the closest point on the straight line containing one of the opposite edges Midside nodes if any are ignored Figure 4 Pyramid Element Cross Section Construction A wedge element has 3 quadrilateral and 2 triangle faces and has 3 quadrilateral and 1 triangle cross sections As shown in Figure 5 Wedge Element p 129 the cross sections are connected to midside nodes or to edge midpoints where midside nodes are not defined Figure 5 Wedge Element Element Faces Element Cross Sections A tetrahedron element has 4 triangle faces and 6 triangle cross sections Figure 6 Tetrahedron Ele ment p 130 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 129 Mesh Metrics Tool Figure 6 Tetrahedron Element Element Faces Element Cross Sections As shown in Figure 7 Tetrahedron Element Cross Section Construction p 130 each tetrahedron cross section is constructed by passing a plane through one of the edges and the closest point on the straight lin
42. D8R SOLID185 C3 D8RH C3 D8T C3 D8HT C3 D8RT C3 D8RHT DC3 D8 DCC3 D8 DCC3 D8D DC3 D8E C3 D8P C3 D8PH C3 D8RP C3 D8RPH AC3 D8 AC3 D8R C3 D8E SC8R Hexahedral Gasket GK3 D8 GK3 D8N INTER195 GK3 D18 p 168 GK3 D18N gt p 168 INTER194 Quadratic Tetrahed C3 D10 C3 D10H C3 D10M C3 D10MH C3 SOLID187 ral D10MT C3 D10MHT DC3 D10 DC3 D10E C3 D10MP C3 D10MPH AC3 D10 C3 D10E Quadratic Wedge C3 D15 C3 D15H C3 D15V C3 D15VH DC3 SOLID186 D15 DC3 D15E AC3 D15 C3 D15E Quadratic Hexahed C3 D20 C3 D20H C3 D20R C3 D20RH C3 SOLID186 ral D27 C3 D27H C3 D27R C3 D27RH C3 D20T C3 D20HT C3 D20RT C3 D20RHT DC3 D20 DC3 D20E C3 D20P C3 D20PH C3 D20RP C3 D20RPH AC3 D20 C3 D20E C3 D20RE 1 There is no equivalent Mechanical APDL element gasket type for these ABAQUS elements so the closest Mechanical APDL element by shape is used 2 Rigid elements are not translated as a rigid element but use the element type closest to the Mech anical APDL element shape and dimension Also the reference node defined on the RIDID BODY keyword is ignored 3 The two mid surface nodes are not supported Mechanical Data Processing Specifications The following is a specification of the data that is transferred from Mechanical to FE Modeler The data transferred includes 2 D Elements 3 D Elements a subset of loads for a Static Structural analysis having Mechanical APDL as its
43. E parameter supported INSTANCE parameter supported If the name matches the processed instance the set will be processed List of element sets supported FREQUENCY supported A modal simulation will be defined EIGENSOLVER parameter supported NORMALIZATION parameter supported For Lanczos solver gt Number of eigenvalues to extract read gt Minimum and maximum frequencies read For Subspace solver Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 159 Import Specifications gt Number of eigenvalues to extract read gt Maximum frequency read EQUATION supported Using a component set name not supported e MPC supported Only BEAM and TIE types are supported Data is supported only when two items are used on a line under the following conditions gt Both items are node identifiers gt The first item is a component set and the second is a node identifier gt Both items are components set The number of nodes in each component must be equal or the 2nd component must have only 1 item gt A check is made to ensure the components exist and if not a warning is issued Supported Node Keywords e NODE SYSTEM parameter supported INPUT parameter supported Supported Element Keywords e ELEMENT INPUT parameter supported ELSET parameter supported TYPE parameter suppor
44. Figure 9 Aspect Ratios for Triangles n 1 20 Aspect Ratio Calculation for Quadrilaterals The aspect ratio for a quadrilateral is computed by the following steps using only the corner nodes of the element Figure 10 Quadrilateral Aspect Ratio Calculation p 132 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 131 Mesh Metrics Tool Figure 10 Quadrilateral Aspect Ratio Calculation Rectangle through ro ie nie S Quadrilateral ra Midpoint 1 If the element is not flat the nodes are projected onto a plane passing through the average of the corner locations and perpendicular to the average of the corner normals The remaining steps are performed on these projected locations 2 Two lines are constructed that bisect the opposing pairs of element edges and which meet at the element center In general these lines are not perpendicular to each other or to any of the element edges 3 Rectangles are constructed centered about each of the 2 lines with edges passing through the element edge midpoints The aspect ratio of the quadrilateral is the ratio of a longer side to a shorter side of whichever rectangle is most stretched 4 The best possible quadrilateral aspect ratio for a square is one A quadrilateral having an aspect ratio of 20 is shown in Figure 11 Aspect Ratios for Quadrilaterals p 132 Figu
45. ION TYPE ISOTROPIC only The DEPENDENCIES parameter is NOT supported gt Material property definition is NOT processed Temperature dependency is supported PLASTIC HARDENING ISOTROPIC only Temperature dependency is NOT supported the data for the first temperature is used CONDUCTIVITY Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 161 Import Specifications Supported for TYPE ISOTROPIC and ORTHO The DEPENDENCIES parameter is NOT supported gt Material property definition is NOT processed For TYPE ISOTROPIC temperature dependency is supported For TYPE ORTHO temperature dependency NOT supported The data for the first temperature is used SPECIFIC HEAT The DEPENDENCIES parameter is NOT supported gt Material property definition is NOT processed The temperature dependency is supported Supported Properties Keywords DASHPOT Linear only DASHPOTA is NOT supported The degree of freedom DOF associated with the first node is stored with the definition The DOF for the second node used with DASHPOT2 elements is ignored MASS and ROTARY INERTIA NODAL THICKNESS Any thicknesses defined by this keyword supersedes the constant thickness value defined by the SHELL SECTION keyword The constant shell thickness is still defined but is not used by any of the el
46. ION attribute defined with the element in the EBLOCK section For ABAQUS the grouping is performed based on each MEMBRANE SECTION SHELL GENERAL SECTION or SHELL SECTION keyword If an element is not a shell element an additional group is added to contain these elements If grouping by element components The element belongs to the body corresponding to the first element component that refers the element If an element is referred later in the file to another component this referral is ignored Therefore the order of the components is important e This option is not available for NASTRAN If an element is not referred by an element component an additional body group is added to contain these elements How to Group Bodies Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 15 User Interface After adding mesh files to the Model cell in the schematic view the file Properties and change the Body Grouping property as needed for each mesh file Note Body Grouping is only available for NASTRAN ABAQUS and Mechanical APDL files If you change the body grouping or any other property on any imported mesh file after it has been read into the FE Modeler Editor you will be prompted to destroy all work done to the file in the FE Modeler Editor in order to import the mesh with this new setting See the mesh imp
47. Inc and its subsidiaries and affiliates Tree Outline View Types ABAQUS MASS and ROTARY INERTIA keywords mass ID numbers are assigned by FE Modeler Spring Properties View The purpose of the Spring Properties view is to provide Displays a listing of mass properties such as stiffness and damping coefficient e Provides a grouping of spring elements with identical properties Filters element selection for a specified set of spring elements only e Differentiates elements with different properties by color Outline Spring Properties 26 Spring Property 100000001 oe Spring Property 100000002 eo Spring Property 100000003 ow Spring Property 100000004 al Spring Property 100000005 p Spring Property 100000006 oa Spring Property 100000007 p Spring Property 100000008 aa Spring Property 100000009 on Spring Property 100000010 Spring Property 100000011 Spring Property 100000012 Spring Property 100000013 Spring Property 100000014 Details View Stiffness 1 e 007 Damping Coefficient o Note Only if spring elements are present in the model For Spring properties from A Mechanical APDL archived file spring ID numbers are assigned by FE Modeler A NASTRAN PELAS card spring properties for a single mesh import or for the first mesh to be imported retain their original ID numbers A NASTRAN CELAS2 card spring proper
48. MOMENT 1 MOMENT 1 MOMENT2 1 PLOAD PLOAD2 PLOAD4 A non normal orientation is displayed in the GUI as a force but is sent to the Mechanical APDL applic ation as a pressure A non normal orientation is supported only on a 3 D solid element face Variable pressure distribution is not supported Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 155 Import Specifications e SPC e SPCD SPC1 Note 1 If another FORCE or MOMENT specification contains the same grid number and load set number the force components will be added Supported Material Specifications MATI Young s modulus shear modulus Poisson s ratio mass density thermal expansion coefficient and the reference temperature are supported If one value of the Young s modulus shear modulus or Poisson s ratio is not specified it is calculated from the other two e MAT2 3 X 3 symmetric material property matrix Mass density is supported Thermal expansion coefficient vector Reference temperature for thermal expansion if thermal expansion is defined e MAT3 No data is supported The material id only is maintained MAT4 Thermal conductivity and Specific Heat are supported e MATS5 No data is supported The material id only is maintained e MAT8 Moduli of elasticity Poisson s ratio Shear moduli Mas
49. MP card composite properties for a single mesh import or for the first mesh to be imported retain their original ID numbers The ABAQUS SHELL SECTION keyword and the COMPOSITE parameter composite ID numbers are assigned by FE Modeler Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 28 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types Components View The purpose of the Components view is to provide A listing and visualization of components and component groupings also called Assemblies All valid components and assemblies are shown e Naming components A listing of element types present in one or more components along with corresponding element counts Element selection filtered by one or more components Element selection filtered by one or more element types within a set of components Outline Generate Data Element Types 17 Hz Bodies 1 amp Materials 18 ox Thicknesses 21 a Rod Properties 13 Beam Properties 30 a Bar Properties 21 ry Mass Properties 15 a Spring Properties 26 a Components 2 Unsupported Bar Pin Releases ine Unsupported Beam Pin Releases EE Constraints 3 Geometry Synthesis s Skin detection tool a Details View E General Number of Elements 7 Note Models based on
50. Model cell to the Model cell 60 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates FE Modeler Components and Assemblies A primary feature of FE Modeler is its ability to create or generate named components and assemblies Components are a convenient grouping of a common entity A component may consist of elements nodes or element faces but cannot contain a mixture of different entities Assemblies are groupings of components and may contain components consisting of any entity type Assemblies may also be grouped together to form multiple levels of assemblies and can also be grouped together into other assemblies Please see the illustration shown below Assembly_5 Level 4 Assembly_3 Assembly_4 Level 3 Level 1 Assembly_2 Level 2 Assembly_1 Level 1 Components are used in loads and boundary conditions In addition for models containing contact components are used to store the areas of contact typically element faces After importing meshes you can either create components and assemblies in FE Modeler or FE Modeler automatically generates components and assemblies based on the data contained in the input meshes Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 61 Components and Assembl
51. NE121 PLANE183 INTER193 INTER203 CPT213 PLANE223 PLANE2302 PLANE233 3 D Quadratic Quadrilateral SHELL132 FLUID1362 SHELL150 SURF1522 SURF1542 SHELL157 2 SOLID273f SHELL281 Linear Hexahedral SOLID5 FLUID30 SOLID647 SOLID65 SOLID707 FLUID80 SOLID96 SOLID97 INFIN1117 FLUID1422 SOLID1647 SOLID1852 SOLSH1902 INTER195 CPT215 Quadratic Tetrahedral Quadratic Hexahedral SOLID87 SOLID98 HF119 SOLID123 SOLID168 SOLID187 CPT217 SOLID227 SOLID232 SOLID237 SOLID285 SOLID907 INFIN1117 HF120 SOLID1227 SOLID186 INTER194 INTER204 CPT2167 SOLID226 SOLID2317 SOLID2367 Meshing Facet MESH200 Contact TARGE170 TARGE173 TARGE174 TARGE175 gt 1 Element properties are supported See the Properties section for more details 2 This element supports multiple shapes This list displays the elements in their most basic and fun damental form 3 Only contact elements are processed as a contact See the Contact Properties section for more details 4 Valid only when KEYOPT 2 1 Material Commands The following material commands are supported when importing files from the Mechanical APDL ap plication MPTEMP MPDATA commands The following temperature dependent material property labels are supported ALPX ALPY ALPZ C DENS EX EY EZ GXY GYZ GXZ KXX KYY KZZ NUXY NUYZ NUXZ PRXY PRYZ PRXZ REFT MU MURX MURY MURZ
52. QUS aS th Target System i s isein avean eae ed ai neas eede i eani ia mato ante 174 NASTRAN as the Target Syste Messor ainireti sosie eraa eoa Raa eoa Sa s ERa eP a iaa aE ia eaea ia 175 STL asthe Target Systemi noc eenninnrn n e aE E TE KAO AEEA EEES Ease 176 Template asthe Target SysteM sii jcdsivaistasacssetasesisssa nee peadati a a a Ea A a a Ea a 176 WINX EE I E E A EE T E celeeeMusatetth es 179 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates v vi Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates FE Modeler Role in ANSYS Workbench FE Modeler works with the standard finite element representation used inside ANSYS Workbench FE Modeler supports robust data transfer from NASTRAN ABAQUS STL and other ANSYS Workbench ap plications into the Mechanical and Mechanical APDL applications Use FE Modeler to Import a finite element FE model from a NASTRAN bulk data file or ABAQUS Input file Import a finite element FE model from an STL input file Import FE information from the Mechanical application Import FE information from Advanced Meshing This capability is based upon specific licensing requirements Please see the FE Modeler Licensing section shown below Import archived Mechanical APDL dat
53. RSVX RSVY RSVZ MGXX TB TBTEMP TBDATA TBPT commands The following non linear material properties and their labels are supported All except bilinear isotropic hardening and anisotropic elastic are temperature dependent Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 150 of ANSYS Inc and its subsidiaries and affiliates Mechanical APDL Archived File Command Specifications Bilinear isotropic hardening BISO Multilinear isotropic hardening MISO Multilinear kinematic hardening KINH Nonlinear plasticity PLAS Anisotropic Elastic ANEL gt The flexibility form is not supported gt Note The stiffness terms must be positive definite requiring all determinants to be positive Oth erwise the properties will not be imported Hyperelastic with the following models gt Mooney Rivlin MOONEY gt Ogden OGDEN Polynomial form POLY Neo Hookean NEO Property Commands The following property commands are supported when importing files from the Mechanical APDL ap plication RLBLOCK SECTYPE SECDATA SECBLOCK SECCONTROL SECOFFSET Element properties are either defined with real constant data RLBLOCK or section data SECTYPE etc depending on the element type The supported properties are grouped by shell beam rod mass and S pring properties The following sections summarize the properties supported for the par
54. Response Spectrum system with a Transfer connection from the Model cell to the Model cell Inserts upstream Response Spectrum system with a Transfer connection from the Setup cell to the Model cell Static Structural Model Inserts upstream Static Structural system with a Transfer connection from the Model cell to the Model cell Static Structural Setup Inserts upstream Static Structural system with a Transfer connection from the Setup cell to the Model cell Static Structural Samcef Model Inserts upstream Static Structural Samcef system with a Transfer con nection from the Model cell to the Model cell Static Structural Samcef Setup Inserts upstream Static Structural Samcef system with a Transfer con nection from the Setup cell to the Model cell Steady State Thermal Model Inserts upstream Steady State Thermal system with a Transfer connectio from the Model cell to the Model cell Steady State Thermal Setup Inserts upstream Steady State Thermal system with a Transfer connectio from the Setup cell to the Model cell Thermal Electric Model Inserts upstream Thermal Electric system with a Transfer connection from the Model cell to the Model cell Thermal Electric Setup Inserts upstream Thermal Electric system with a Transfer connection from the Setup cell to the Model cell Transient Structural Model Inserts upstream Transient Structural system with a Transfer connection from
55. Solid 2 Node Magnetostatic Source SOLID36 2 Node Bar 3 Node Magnetostatic Source SOLID36 2 Node Bar 4 Node Tetrahedral Electric Solid SOLID2327 p 170 4 Node Tetrahedral Solid 8 Node Pyramidal Electric Solid SOLID2317 p 170 5 Node Pyramidal Solid 8 Node Pentahedral Electric Solid SOLID2317 p 170 6 Node Pentahedral Solid 8 Node Hexahedral Electric Solid SOLID2317 p 170 8 Node Hexahedral Solid 10 Node Tetrahedral Electric Solid SOLID232 10 Node Tetrahedral Solid 20 Node Pyramidal Electric Solid 20 Node Pentahedral Electric Solid SOLID231 SOLID231 13 Node Pyramidal Solid 15 Node Pentahedral Solid 20 Node Hexahedral Electric Solid 1 If the solid shell option is used 2 Midside nodes omitted Note SOLID231 20 Node Hexahedral Solid MESH200 is also supported and used when importing only a mesh to FE Modeler or whenever the analysis type as reported by the Mechanical application is Unknown MESH200 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 170 Mechanical Data Processing Specifications is also used whenever there is not enough information in the Mechanical application branch to deduce the analysis type Supported Mechanical Loads The following subset of loads from a Static Structural analysis with a s
56. The two arrays available for this example are shown illustrated below Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 112 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher q Gemey pee r Method immediate Edge Projection Switch the ertices Projections Suppressed NO Array Option 1 Array Option 2 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 113 Geometry Synthesis e Make sure that you choose option one shown above 4 Generate the projection a Click the Generate the Design Point button in the toolbar The edge projection is created as illustrated below in three different orientations Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 114 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 115 Geometry Synthesis Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 116 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Release 15 0 SAS IP Inc All rights reserved Contains propri
57. This feature enables you to use the model for further analyses in Workbench or to perform parametric studies 7 Use the toolbar to print the preview or export the data in the form of the target system s commands to an inp file Note Because it is not unusual to encounter large gaps in node and element numbering in finite element models Generated Data by default compresses any such gaps when exporting to the Mechanical APDL application You can disable the option that changes the ID s of all of nodes and elements that are sent to the target system from FE Modeler through the Tools gt Options feature However sending large entity numbers such as node or element ID s may not be memory efficient in the Mechanical APDL application Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 37 38 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates FE Modeler System Usage in Workbench This chapter provides specific information and instruction for some of the tasks that are possible with an FE Modeler system in the Workbench Project Schematic These actions include Opening or creating FE Modeler systems Importing mesh data Linking FE Modeler systems to other Workbench systems Most of these tasks can be perform
58. Transformation G Translation Rotation WD Face Offset te Edge Offset Insert a transformation to the configuration Select Transformation type of a Target Configuration or Design Point Gi New Design Point Add a new design point to the current target configuration Defines a precise shape for a Target Configuration for a given parameter value Transforma tions are applied to the Design Points Generate the Design Points Generate the design point accord ing to its attached transforma tions Generates all transformations applied to all of the Design Points in all Target and Depend ent Configurations amp Parameterized Mesh Bring in the parameterized mesh and compute for the first time the associated polynomial Create a morphed mesh on the Parametized Configurations of a new geometry f Mesh Update Mesh Update Build the polynomial function that will allow you to morph the mesh according to the paramet er values It also updates the polynomial function that con trols the morphed mesh on the new geometry i Update FE Modeler Mesh Update the FE Modeler Mesh with the current Parameterized Mesh Tree Outline View Types Applies a transformation on the original FE mesh so that you can export the new geometry You examine data in FE Modeler by selecting from one of the available Views displayed in the Tree Outline pane for example the Element Types Vie
59. VIEW serri sneren ritiri e s aE TEE EA ER ESOT T NA EERTE 29 ConstraintEQuations VIEW aasi ipanen aae aS A AE AEA ATENE NAN AEAEE E EAEAN AA AAA AAN Aaa 30 Constraints Vie W Seserissigi ihre a EEE EEE E EEEE EE EA EEEE NER Ee 31 FOrCES VIEW eane EEEE EEA EN EEEE E E E E EENET 32 Pressures VIGW i fovetece fewevsicensn ensue ctieiasiewase eTa an ES EEN EEE PE EEE EE eE a a E aN 33 Curved Pipe Properties ViGW s 005 lt 6 ss0sssevcesestsuvoss sevens sds evens EEn eaS Ei etr EEN cis db ons deveess tacebess deduce i 34 GEOMEURY Synthesis VieW sr ssran asesinan ca Vues stir ved dee Gaaegu nea aah REE GERREA RENE EE aia aie 34 Basic Workflow isiin oetara ie dataa iene taer oea ainoaa va NOMEN RU Sad Pad irada Range eaETNS 37 System Usage in Workbench i iiss saisacia ssc cvsetevisennsdhgveauvavsnshaydavanatinnsscateueavedqratia cia avvareTeeaveag denwedesananeta yes 39 Open or Create an FE Modeler System ssssessseseessssseessssressssressssseessssteesssetessseresssssresssereesssetesssereessseees 40 Meshilmport Limitati N Ssss eusen a a diag E a EEE E EEE E a E EAR 42 Ma aging Meshes inenen iiiaio aai 42 Reordering Meshes in the Outline s sssssessseseesssseessssseessssressseresssssressssressssrtesssereessereessssresssesee 43 Setting and Viewing Mesh Properties ssssessssseesssseesssssesrsssressssressssressssreessertessseressssreesssseesse 43 Removing Meshes from the FE Modeler System sssssssssesssssessssseessssressssrressseress
60. a collection of Bodies grouped together An assembly in turn is made of multiple Parts Groups of elements that do not share nodes are identified as Parts Outline Project Import Summary Generate Data Element Types 1 Vz Bodies 1 amp Materials 2 E Components 21 ie Geometry Synthesis a Skin detection tool ee EEEE Part z Body Grouping Elements In addition you can also identify groups of elements in the FE mesh as Parts You can do so by grouping the elements based on Material ID Element Type ID or by Components see Grouping Bodies Each body mesh in the Bodies View becomes either a Body or a face in the initial geometry based on the Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 74 of ANSYS Inc and its subsidiaries and affiliates Mesh Diagnostics nature of the elements contained in the body mesh For example consider a legacy mesh of a bimetallic strip where each half of the strip is made up of different materials and nodes are shared between the two groups of elements When this mesh is grouped by material and imported into FE Modeler you will find two body meshes in the Bodies View The geometry created from this mesh has a single part with two bodies Mesh Diagnostics Mesh Diagnostics is a tree object that appears only if FE Modeler detects problems in the mesh that prevent the
61. a created using the CDWRITE command This command writes a file with the default extension cdb e Navigate and visualize the data contained in the model Generate a geometry from an FE Model using the Geometry Synthesis feature Given an ANSYS Mesh Morpher license parameterize and transform a generated geometry Create named components based on element selections Generate a Mechanical APDL NASTRAN ABAQUS or STL input deck for downstream analysis Import a Fluent or CFX Mesh file FE Modeler Licensing FE Modeler capabilities are available for users with an ANSYS Professional license or above FE Modeler capabilities as well as the ANSYS Mesh Morpher feature are included with the ANSYS Aca demic line of products ANSYS Mesh Morpher FE Modeler ANSYS Mesh Morpher feature requires its own license Workbench Advanced Meshing If you have Workbench as well as ANSYS ICEM CFD installed you can take a mesh from the ICEM CFD Meshing application into FE Modeler Converting a Mesh to a Parasolid Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 1 Role in ANSYS Workbench If you have a DesignModeler license you can export a Parasolid file created from the mesh you imported into FE Modeler Using Localization in a Linux Installation If you are using a localized operating system such as French or German you must
62. a named selection in a Mechanical system that is composed of 2 faces when it is imported into an FE Modeler system it will appear on the initial geometry as a single component with one face composed of the two faces from the Mechanical system e Mechanical system linked to FE Modeler at the Setup level This link transfers the Mesh the Contact data the Named Selections and the Boundary Conditions v A v B Static Structural ANSYS 1 FE Finite Element Modeler 2 B model a Finite Element Modeler o 2 Engineering Data 3 Geometry 4 Model 5 D Setup 6 eG Solution 7 e Results Static Structural ANSYS og oi ogh eg ag lt Fluid Flow system linked to FE Modeler This link transfers the Mesh the Contact data and the Named selections v A v B i 2 Geometry Pal Model Pa 3 Mesh F Finite Element Modeler 4 setup Ps 5 Solution r 6 Results A Fluid Flow Mechanical Model system linked to FE Modeler This link transfers the Mesh the Contact data and the Named selections v 4 v B 2 Engineering Data 2 w Model E 3 w Geometry E Finite Element Modeler 4 Model Mechanical Model e Mechanical APDL system Linked to FE Modeler This link transfers the Mesh the Contact data the Named selections and the Boundary Conditions Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 48 of ANSYS In
63. age view indicating the duplication problem No data will be saved When FE Modeler opens it will import the mesh files sequentially starting with the files that have the ID handling property set to No Action Having files that are set to No Action can result in large gaps in your node and element ID numbers if the files contain groups of entity numbers that are widely spaced When the files that are set to Automatic Numbering are imported the nodes and elements will be re numbered starting at the current highest ID for each type of entity Link FE Modeler to Other Workbench Systems This section explains how to create links between FE Modeler and other Workbench systems and it describes the behavior of all possible links to or from an FE Modeler system For a more general discussion of linking between Workbench systems see Creating and Linking a Second System The Model cell in an FE Modeler system can be linked from any system that exposes Mesh Data assuming this data is in a format readable by FE Modeler These include any Mechanical systems any Fluid Flow systems Mechanical Model systems Mechanical APDL systems and Mesh systems An FE Modeler Model cell can also be linked from any Mechanical system Setup cell Note You cannot link a Rigid Dynamics system to an FE Modeler system because the Rigid Dynamics system model does not use an FE representation of the rigid bodies and joints The Model cell can generate the following
64. al Electric Planar PLANE230 p 169 4 Node Quadrilateral Plane 8 Node Triangular Electric PLANE230 6 Node Triangular Plane 8 Node Quadrilateral Electric Planar 1 Midside nodes omitted PLANE230 Supported Elements 3 D Models 8 Node Quadrilateral Plane Any element options related to Mechanical APDL KEYOPT and Reals are not supported An example is the Integration Scheme option for solid elements Mechanical Mechanical APDL Mechanical APDL Ele FE Modeler Generic Representation Shape Category ment Type 2 Node Structural Beam BEAM188 2 Node Beam 3 Node Structural Beam BEAM189 3 Node Beam 4 Node Triangular Structural Shell SHELL181 3 Node Triangular Shell 4 Node Quadrilateral Structural SHELL181 4 Node Quadrilateral Shell Shell 8 Node Triangular Structural Shell SHELL281 6 Node Triangular Shell 8 Node Quadrilateral Structural SHELL281 8 Node Quadrilateral Shell Shell 8 Node Tetrahedral Structural Solid SOLID185 4 Node Tetrahedral Solid 8 Node Pentahedral Structural SOLID185 or 6 Node Pentahedral Solid Solid SOLSH190 p 170 8 Node Hexahedral Structural Solid SOLID185 or 8 Node Hexahedral Solid SOLSH190 p 170 10 Node Tetrahedral Structural SOLID187 10 Node Tetrahedral Solid Solid Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 169 I
65. al database to a newly created Finite Element Modeler system Note that you can also make the link from the Setup cell which will also transfer loads and boundary conditions Or Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 52 of ANSYS Inc and its subsidiaries and affiliates Link FE Modeler to Other Workbench Systems You can directly drag amp drop an FE Modeler System onto the Model cell and it will achieve the same result Note that you can also drop it onto the Setup cell to also transfer the loads and boundary conditions Or 1 From the Toolbox double click the Finite Element Modeler icon in the Component Systems list or click and drag the Finite Element Modeler icon into position in the Project Schematic 2 Right click on the Model cell select Transfer Data From New and select one of the possible choices Note that for each Mechanical system type you will have the choice to link at the Model or Setup level Or You can also create or import a Mechanical database dsdb to the project and link it as the source to the Finite Element Modeler system 3 Update the project Note When you are in the Finite Element Modeler Editor if you modify the Components or if you create a Target Configuration object any link connection made with a possible upstream system will be broken This is a current limitation of the system that prevents you from launching a
66. al information 14 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types Or Element component This option is not available when importing a NASTRAN file By default the Body Grouping property is defined as None only one body is defined You must select how to group the bodies either by material thickness element type or element component Requirements If grouping by materials The element grouping is performed even if the actual material definition is not found e For a Mechanical APDL archived file the grouping is performed based on the MAT attribute defined with the element in the EBLOCK section If an element does not have an assigned material an additional group is added to contain these elements If grouping by element types For a Mechanical APDL archived file the grouping is performed based on the TYPE attribute defined with the element in the EBLOCK section For NASTRAN the grouping is performed based on the element definition such as CQUAD4 For ABAQUS the grouping is performed based on the element name defined with the TYPE parameter on the ELEMENT keyword If grouping by shell thickness For NASTRAN the grouping is performed based on the Property ID used in each element definition such as CQUAD4 Variable thicknesses and orientation angles are ignored for the grouping For a Mechanical APDL archived file the grouping is performed based on the REAL or SECT
67. allow for loads and boundary conditions to be applied to the geometric entities Using 1D Geometry in FE Modeler If the Create Wire Geometry parameter is set to Yes then FE Modeler will generate 1D geometry when you use Geometry Synthesis FE Modeler can create the geometry equivalent of 1D elements such as beams bars and remote points in Geometry Synthesis When you import a mesh and generate 1D geometry all beams and bars are shown as wire Limitations and Recommendations 1D Geometry has the following limitations Beams Beams are processed if cross section data and physical properties are available If this data is not present a diagnostic tree node is created and the beams are added to the mesh without cross section data Wired geometry will not be added in the geometry if such data is missing Cross sections Cross section geometry is used if the geometry of the cross section is present in the mesh file Cross sections are not shown in FE but they can be viewed in the Mechanical application Cross section properties of 1D elements are attached to the geometry which can be transferred to the Mechanical ap plication In the Mechanical application the mesh is associated with the geometry but it is possible to re mesh and keep data attached to the geometry cross section of beam mass of lumped mass etc Springs Springs are not shown as a wired geometry because springs are not a geometric element It is the same behavior as s
68. and affiliates ANSYS Mesh Morpher Graphics 11 Now enter 30 as the Angle of rotation click the Enter key and then click the Generate the Design Point button on the toolbar Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 97 Geometry Synthesis The first Design Point is complete We now need to add another design point to continue the rota tion 12 Add a second Design Point to continue the rotation a rotation of 60 degrees a b Select the Target Configuration tree object Select the New Design Point toolbar button Click the Transformation drop down menu and select Rotation Select the outside surface and click the Apply button in the Geometry field of the Details View A Rotation transformation is applied to the surface Select the same rotation axis as before using the same two points In the Details View of the Rotation object enter 60 as the Angle and press the Enter key Execute the rotation by selecting the Design Point 1 tree node and then click the Generate the Design Point button on the toolbar 98 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Graphics We will now add a last design point to end the rotation 13 Add a third Design Point and
69. arily assigned to be 100 4 If the element is a line element having a midside node the Jacobian matrix is not square because the mapping is from one natural coordinate to 2 D or 3 D space and has no determinant For this case a vector calculation is used to compute a number which behaves like a Jacobian ratio This calculation has the effect of limiting the arc spanned by a single element to about 106 A triangle or tetrahedron has a Jacobian ratio of 1 if each midside node if any is positioned at the av erage of the corresponding corner node locations This is true no matter how otherwise distorted the element may be Hence this calculation is skipped entirely for such elements Moving a midside node away from the edge midpoint position will increase the Jacobian ratio Eventually even very slight further movement will break the element Figure 16 Jacobian Ratios for Triangles p 135 We describe this as breaking the element because it suddenly changes from acceptable to unacceptable broken Figure 16 Jacobian Ratios for Triangles AAA 1000 Any rectangle or rectangular parallelepiped having no midside nodes or having midside nodes at the midpoints of its edges has a Jacobian ratio of 1 Moving midside nodes toward or away from each other can increase the Jacobian ratio Eventually even very slight further movement will break the element Figure 17 Jacobian Ratios for Quadrilaterals p 135 Figure 17 Jacobian
70. arious shapes supported for different formats and what they are named in the FE Modeler user interface Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 22 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types FE Mechanical APDL and Mechanical Applica ABAQUS Corresponding Fig Modeler tions ure Rod CSOL CIRC C A L 7 L d L L L Channel JL Bar Properties View The purpose of the Bar Properties view is to provide a Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 23 User Interface e Listing of bar properties for example area of cross section inertia terms torsion constant and non structural mass Grouping of bars with identical properties e Visualization of bar elements within a model Filter for element selection for specified set of bar elements only Differentiation of bar elements with different properties by color Outline E a Bar Properties 21 wn Bar Property 23 Bar Property 33 Bar Property 242 Bar Property 900 Bar Property 913 Bar Property 916 Bar Property 1000 ge Bar Property 1001 Bar Property 1002 Bar Property 2136 a Bar Property 7004 a Bar Property 8000 a Bar Property 9
71. ass Properties View The purpose of the Mass Properties view is to provide A listing of mass properties for example mass value Coordinate system ID used for offset and inertia terms x y z offsets 6 terms of the inertia tensor A grouping of mass elements with identical properties Filters element selection for specified set of mass elements only Differentiates elements with different properties by color Outline Mass Properties 15 Mass Property 120000000 Mass Property 120000001 Mass Property 120000002 Mass Property 120000003 Mass Property 120000004 Mass Property 120000005 Mass Property 120000006 Mass Property 120000007 Mass Property 120000008 Mass Property 120000009 Mass Property 120000010 Mass Property 120000011 Mass Property 120000012 Mass Property 120000013 Mass Property 120000014 Details view General Mass 6 237 12 003 Coordinate system x offset offset zZ offset 111 inertia term 121 inertia term 122 inertia term 131 inertia term 132 inertia term 133 inertia term Note Only if mass elements are present in the model e For Mass properties from A Mechanical APDL archived file mass ID numbers are assigned by FE Modeler A NASTRAN CONM2 card mass properties are assigned an arbitrarily large ID number 26 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS
72. ation only CONM2 All properties are displayed in the GUI However only the mass and diagonal terms of the inertia tensor are transferred to the Mechanical APDL application No coordinate system mass offset from node location or off diagonal terms of the inertia tensor are transferred to the Mechanical APDL application Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 154 of ANSYS Inc and its subsidiaries and affiliates NASTRAN Bulk Data Processing Specifications CBEND Only the curved pipe option using GEOM 1 is supported Any orientation vectors specified will be used to define the orientation node defined with the other nodes of an element CPENTA CQUAD No center node CQUAD4 No offset All affected elements are grouped in a component during import CQUAD8 No offset All affected elements are grouped in a component during import CQUADR CQUADX No center node All affected elements are grouped in a component during import CROD CONROD No coefficient for torsional stress determination CSHEAR CTETRA CTRIA3 No offset All affected elements are grouped in a component during import CTRIA6 No offset All affected elements are grouped in a component during import CTRIAR No offset All affected elements are grouped in a component during import CTRIAX CTRIAX6 Supported Loads Boundary Conditions Specifications FORCE 1 FORCE1 1 FORCE2 1
73. ay not operate properly The Blocked format uses the Mechanical APDL commands NBLOCK and EBLOCK General Commands The following general commands are supported when importing the Mechanical APDL archived file CMBLOCK Nodal and element components are processed e CMGRP An assembly is processed e CMEDIT The addition of another component and or assembly to an existing assembly is processed Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 148 of ANSYS Inc and its subsidiaries and affiliates Mechanical APDL Archived File Command Specifications Coordinate Systems Commands The following coordinate systems commands are supported when importing files from the Mechanical APDL application e LOCAL e CSCIR Node Commands The NBLOCK command is supported when importing files from the Mechanical APDL application This command processes nodes and nodal rotations Element Commands The following element commands are supported when importing files from the Mechanical APDL ap plication s ET e KEYOP e EBLOCK Note A new element type object is defined based on the 1 Element type used with the ET command 2 KEYOPT settings used with the KEYOP command 3 Shapes multiple of the elements using the ET setting For example a SOLID186 ET command defines elements with both hexahedron and tetrahed ron shapes Two element types are defined one for the he
74. b Click the button in the Source field and Open the file Support_Geometry igs Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 110 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Outline Project Import Summary Generate Data Element Types 1 TAZ Bodies 1 i Eg Components 1 K Modal Simulation a Geometry Synthesis yp Skin Detection Tool Working Geometries 20 Working Geometry EG Initial Geometry Ate Geometry Ell Target Configuration 70 Design Point i is Projection 7 Parameterized Configuration Details View Importation Source Definition 3 Define the support edge on the Working Geometry Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 111 Geometry Synthesis a Highlight the Projection object b Click in the Projection Entities field E Definition Tye Projection Entities Apply Method Select the Geometry Suppressed NO c Select the edge shown below Make sure that you have the edge selection tool selected in the toolbar d Click Apply Once applied two arrays appear The arrays display how you can project the edge To change the direction click the Switch the Vertices Projection field Shown below change the dir ection using the arrow options in the Graphics window and then click Apply
75. c and its subsidiaries and affiliates Link FE Modeler to Other Workbench Systems v 4 v B 1 A Mechanical APDL MW IL Finite Element Modeler 2 C Analysis e2 w Model va Mechanical APDL Finite Element Modeler Note The only format that can be read from a Mechanical APDL connection is a cdb file e Mesh system linked to FE Modeler This link transfers the Mesh the Contact data and the Named selections v A T B o i FE Finite Element Modeler 2 w Geometry P P ei Model Lae 3 Mesh Finite Element Modeler Mesh FE Modeler as an Upstream System When connecting to a downstream Model cell FE Modeler will transfer the Initial Geometry based on the faceted surface and an associated mesh to the downstream system The downstream Geometry cell will then be hidden When connecting to a downstream Geometry cell FE Modeler will transfer the Initial Geometry as a Parasolid NURBS representation and the mesh will not be transferred A dead mesh gets converted into a geometry for further study in any Mechanical system If you drag and drop any Mechanical system on an existing FE Modeler system the only link created automatically is the link to Engineering Data You must manually create the second link to transfer the geometry Note When updating a model from FE Modeler in Mechanical all geometry scoping on objects such as loads results etc is lost For this reason it is recommended that you either use import
76. cet case see below Beams do not have cross section property This warning message appears when the mesh contains beams without cross section properties These beams can not be used because cross section data can t be modified in FE Modeler This means that you must verify the mesh and add the cross section data in the mesh file if possible Potential Error Messages Unjoined Secondary Edge there is at least one edge with two unjoined secondary nodes as illustrated below Secondary nodes are the mid nodes in the quadratic elements Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 75 Geometry Synthesis Error Messages Overloaded Facet at least five facets are superposed and the facets can vary by type For example five shell elements or four shell elements and a volume element or three shell elements are stuck between two volume elements In this case the Skin Detection Tool SDT algorithm cannot process Incorrect Number of Facets at least one element has an incorrect number of facets and FE Modeler detects that there may be a mistake in the SDT algorithm Edge not Found there is an algorithm error because an edge cannot be found Inconsistent Connectivity the common facets of two elements with at least one solid element are not coincidental as illustrated below ANSYS Mesh Morphe
77. change a target system template by selecting Tools gt Options gt FE Modeler gt Templates and modifying the directory path of the target template file Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 145 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 146 of ANSYS Inc and its subsidiaries and affiliates FE Modeler Import Specifications This section defines the Mechanical APDL commands that are supported by FE Modeler for Mechanical APDL archived files Only the Mechanical APDL archive cab file written from the Mechanical APDL application is supported A user created or modified file may not operate properly See the procedures shown below for the steps to convert a file to the cdb format Mechanical APDL Archived File Command Specifications NASTRAN Bulk Data Processing Specifications ABAQUS Keyword Specifications Mechanical Data Processing Specifications Create the Mechanical APDL Archive cdb File Because of the specific format of cdb files it is possible that you will need to convert your finite element mesh files to this format in order to import them into FE Modeler For example data that is exported from FE Modeler to the Mechanical APDL application is not in the cdb format and similarly any Mech anical APDL databases db files will als
78. computed as though the 4 nodes make up a quadri lateral shell element with no real constant thickness available using the square root of the projected area of the face as described in 4 above The warping factor for the element is the largest of the warping factors computed for the 6 quadrilat eral faces of a brick 3 quadrilateral faces of a wedge or 1 quadrilateral face of a pyramid Any brick element having all flat faces has a warping factor of zero Figure 22 Warping Factor for Bricks p 138 Figure 22 Warping Factor for Bricks 0 0 approximately 0 2 approximately 0 4 Twisting the top face of a unit cube by 22 5 and 45 relative to the base produces warping factors of about 0 2 and 0 4 respectively Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 138 of ANSYS Inc and its subsidiaries and affiliates Shape Testing Quality Factor A quality factor is computed for each element of a model excluding line and point elements FE Modeler s Mesh Metrics feature provides a composite quality metric that ranges between 0 and 1 This metric is based on the ratio of the volume to the edge length for a given element A value of 1 indicates a perfect cube or square while a value of 0 indicates that the element has a zero or negative volume The results are displayed in a bar chart that enables you to graphically evaluate the mesh Release 15 0 SAS IP Inc All righ
79. correspond ing geometric entities vertices edges faces This association is maintained when performing morphing For example consider a target geometry that has a face translation During the morphing process any nodes associated with the transforming face can only slide on the face As a result when large transformations such as a large face translation are used the mesh may get distorted Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 79 Geometry Synthesis Parameterized Configuration As stated each Target Configuration has an associated Design Point and parameter that drive the modifications you wish to apply to a geometry or mesh When a Target Configuration is created the Parameterized Configuration object becomes available The Parameterized Configuration object graphically reflects modifications made on current parameter values in the Parameter Workspace For example given a Target Configuration containing one Design Point with a face offset of 100 units by default the value associated with the parameter is 100 When setting the value of the parameter you may produce a fully deformed mesh that is 100 of the defined transformation or perhaps only 32 25 of this transformation You can access and modify the parameters associated with each target configuration in the Parameter Workspace Modify your paramete
80. creation of a geometry Mesh Diagnostics indicates the following types of errors Selecting the error or warning messages under the mesh diagnostics object will highlight the corresponding problem areas in the graphics screen You can also use the right mouse button context sensitive menu to display the error or warning message Warnings notes some aspects of the mesh that does not generally interfere with geometry creation The geometry creation process will proceed to completion Potential Errors indicates potential errors that may affect geometry creation The creation of geo metry is generally not stopped however the associativity between the mesh and the geometry may fail Errors indicates a serious flaw in the mesh that prevents geometry creation the SDT process is stopped the geometry is not created and the Mesh Diagnostics object displays with a description A listing of the available Mesh Diagnostic messages is shown below Warning Messages Semi Parabolic Element at least one parabolic element contains a linear edge without a mid node Element cut by Diagonal there is at least one quadrilateral facet that is cut by another facet on one of its diagonals Shell Between two Elements at least one shell element exists between two volume elements Stuck Facet at least one facet exists that has connected elements equal to or greater than 3 and less than 5 Anything beyond these values becomes an Overload Fa
81. ctions in the Mechanical application Contacts correspond to CONTACT PAIR and SURFACE INTERACTION combinations based on ABAQUS data Contacts view is not applicable for models based on NASTRAN data Colors in the graphics display differentiate contact regions Materials View The purpose of the Materials view is to provide a e Listing of all material names present in the model Grouping of materials with identical properties e Visualization of material usage in the model The materials of the model display in different colors Filter for element selection by one or more materials Display of material properties Modification of material properties is performed in Engineering Data Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 17 User Interface Outline Import Summary Generate Data Element Types 8 Bodies 13 Contacts 10 Materials 3 gt CASTFE ALUM Spring Properties 2 Components 42 constraints 3 Sa Forces 1 Geometry Synthesis s Skin detection tool m e Details view E General EDA Material STEEL Material Property Display The material information can be viewed in more detail by connecting the FE Modeler system to a downstream Engineering Data system and opening the Engineering Data workspace When you import
82. d to match the resulting new geometry The number of nodes and elements remains unaltered by the transformation This modified or target configuration and the associated mesh can be transferred to other Workbench applications Feature Uses The Geometry Synthesis feature can be used in several ways Creating a geometry from legacy mesh data including the Mechanical APDL application ABAQUS STL or NASTRAN so that such models could be analyzed in Workbench for example to account for a changed material property or a loading Parameterizing legacy mesh data and running what if studies in Workbench When you create new geometry configurations the mesh is morphed to fit the new configuration As a result it is not necessary to re mesh the modified geometry This also provides a better basis to compare the results of various configurations The transformed mesh has the same number of nodes and elements as the original mesh Further the element definitions remain exactly the same Only the node location definitions change Generating Mechanical APDL application NASTRAN STL or ABAQUS input files for the new transformed mesh When exporting the mesh any preexisting information about materials components or boundary conditions is preserved because only the nodal coordinates are transformed from the original mesh Parameterizing a Mechanical model created from a geometry that does not support parameterization For example geometries
83. display 17 materials 17 pressures 33 rod properties 20 spring properties 27 thickness 19 view types select 9 WwW working geometries 72 writing solver files 173 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 180 of ANSYS Inc and its subsidiaries and affiliates
84. dition a Non Uniform surface offset includes the following options gt Distance to the edges Define the distance from the edges to the maximum displacement of the transformed face gt Function type Select a function type based on the shape you want to obtain options include Linear Double Tangent Linear tangent Tangent linear gt Immobile edges By default all of the edges for the target surface are selected You can de select edges if desired Note For the best face offset results make sure that the elements of the original mesh are well refined Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 78 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Edge Offset An offset of one edge along a face by a specified distance always with a given sign depending on the edge normal Projection a projection of a face an edge or a vertex onto a face edge or vertex or a group of faces or a group of edges The Projection transformation works in tandem with the Working Geometries feature Using an imported Working Geometry you can project the entities of a Target Configuration onto the entities of the imported Working geometry Apply Transformations To apply a transformation 1 Highlight the appropriate Design Point object in the tree 2 Insert a transformation by clicking the Transformation drop down menu on the toolbar and s
85. e Mechanical APDL element type corresponding to each category is also summarized below Each unique ABAQUS element type is defined by an FE Modeler element type and each FE Modeler element type is processed in the Mechanical APDL application as a unique element type ABAQUS ele ments can be further defined into the specified categories For example Point Mass has four ABAQUS element types that define a mass element If ABAQUS MASS and ROTARY1 elements as shown below are defined the result is two distinct FE Modeler element types and both are processed in the Mechan ical APDL application as MASS21 however the Mechanical APDL application defines two separate MASS21 element types for the given ABAQUS element types Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 165 Import Specifications ABAQUS Element Type Category ABAQUS Element Type Exported Mechanical APDL Ele ment Type Point Mass Point Spring MASS HEATCAP ROTARY 1 ASI1 SPRING1 DASHPOT1 MASS21 COMBIN14 3 D Spring SPRINGA SPRING2 DASHPOTA DASHPOT2 COMBIN14 2 D Linear Line ASI2 B21 B21H B23 B23H PIPE21 PIPE21H F2 D2 FRAME2 D R2 D2 p 168 RB2 D2 p 168 T2 D2 T2 D2H T2 D2T T2 D2E CONN2 D2 JOINT2 D BEAM188 2 D Line Gasket GK2 D2 p 168 GK2 D2N p 168 BEAM188 Axisymmetric Linear Line
86. e Thickness Toggle the visibility of shell thickness Restore Original Window Layout Return to the default original window pane configuration Mesh Metrics The Mesh Metrics tool allows you to test and evaluate the mesh quality of a model Modal Simulation Addins The Modal Simulation tool allows you to define a modal analysis Launches the Addins manager dialog that allows you to load unload third party add ins that are specifically de signed for integration within the Work bench environment Options Allows you to customize the application and to control the behavior of FE Modeler functions Run Macro Opens a dialog box to locate a script vbs js file Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates Standard Toolbar ANSYS FE Modeler Help Displays the Help system in another browser window AboutANSYS FE Modeler Displays copyright software build date and version and service pack version information Standard Toolbar led Write Solver File M Print Preview OQ Target System Mechanical APDL Y The Standard Toolbar contains application level commands and important general functions Each icon button and its description follows Button Menu Description Save button Saves the project as a Workbench Project file wbpj
87. e a half success In this case not all faces are successfully converted to a NURBS representation If this conversion happens in batch when the User clicks on Update and no FE Editor comes up nothing alerts you to this fact except a warning in the Message View You must keep an eye on the Message View when performing automatic batch operations In the FE Editor this half success state is obvious as it is represented by a yellow up to date icon a state which is not supported by the Framework in the Project Schematic If you have a geometry where some faces are too complex to be automatically converted into NURBS you can mitigate this problem by slicing the faces Adding more components or using the Iterative SDT and re creating the Initial Geometry should remove these problems Using the Sew Tool When you create a Parasolid often it is created as multiple bodies instead of a single body geometry You can use a Sew Tool to sew together these individual bodies into a single body for editing in DesignModeler or you can use multiple Sew Tools to create multiple sewn bodies For more on the Sew Tool see Sew in the DesignModeler User s Guide To Apply a Sew Tool to an existing Parasolid Geometry 1 In the Tree Outline right click on a Parasolid geometry and select Add a Sew Tool Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 120 of ANSYS Inc and its subsidiaries and a
88. e contained in the Skin Detection Tool Details To create clear or add groups of SDT Components Create To create SDT components select the Skin Detection Tool object in the Outline and click the Create Skin Components button Clear To clear SDT components select the Skin Detection Tool object in the Outline and click the Clear Skin Components button Add To add STD components to the Components list expand Skin Detection Tool select any component s in the Outline and click the Add to the Components button for more on adding SDT components see Using Iterative Skin Detection p 71 Note You can also use a right mouse click on the Skin Detection Tool or a component and select one of the options above to perform one of the these actions Once created these skin components are listed under the Skin Detection Tool object as illustrated below and each component forms a face during Initial Geometry creation Newly Created SDT Components Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 68 of ANSYS Inc and its subsidiaries and affiliates Skin Detection Tool Outline Project A Import Summary Generate Data Element Types 1 Bodies 1 amp Materials 2 c E Components 21 Geometry Synthesis Skin detection tool A SDT Component SDT Component SDT Component SDT Component SDT Component SDT Component Following SDT C
89. e containing the opposite edge Midside nodes if any are ignored Figure 7 Tetrahedron Element Cross Section Construction Aspect Ratio Calculation for Triangles The aspect ratio for a triangle is computed in the following manner using only the corner nodes of the element Figure 8 Triangle Aspect Ratio Calculation p 131 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 130 of ANSYS Inc and its subsidiaries and affiliates Shape Testing Figure 8 Triangle Aspect Ratio Calculation K Basic _ Rectangle Triangle Midpoint 1 A line is constructed from one node of the element to the midpoint of the opposite edge and another through the midpoints of the other 2 edges In general these lines are not perpendicular to each other or to any of the element edges 2 Rectangles are constructed centered about each of these 2 lines with edges passing through the element edge midpoints and the triangle apex 3 These constructions are repeated using each of the other 2 corners as the apex 4 The aspect ratio of the triangle is the ratio of the longer side to the shorter side of whichever of the 6 rectangles is most stretched divided by the square root of 3 The best possible triangle aspect ratio for an equilateral triangle is 1 A triangle having an aspect ratio of 20 is shown in Figure 9 Aspect Ratios for Triangles p 131
90. e of the upper element is moved The element is a unit square with a real constant thickness of 0 1 When the upper element is warped by a factor of 0 01 it cannot be visibly distinguished from the un derlying flat one When the upper element is warped by a factor of 0 04 it just begins to visibly separate from the flat one Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 137 Mesh Metrics Tool Figure 21 Quadrilateral Shell Having Warping Factor ee ee 0 0 0 01 0 04 e _ lt gt a ee ae 0 1 1 0 5 0 Warping of 0 1 is visible given the flat reference but seems trivial however it is well beyond the error limit for a membrane shell Warping of 1 0 is visually unappealing This is the error limit for most shells Warping beyond 1 0 would appear to be obviously unacceptable However SHELL181 permits even this much distortion Furthermore the warping factor calculation seems to peak at about 7 0 Moving the node further off the original plane even by much larger distances than shown here does not further increase the warping factor for this geometry Users are cautioned that manually increasing the error limit beyond its default of 5 0 for these elements could mean no real limit on element distortion Warping Factor Calculation for 3 D Solid Elements The warping factor for a 3 D solid element face is
91. e the creation of any new skin components New Target Configuration Creates a copy of the Initial Geometry to which transforma tions are applied In addition it automatically creates a new parameter and links the paramet er to the Target Configuration This linked parameter controls changes between the Initial Geometry and the Target Config uration Convert to Parasolid If an initial geometry in the Tree Outline is selected you can cre h Convert to Parasolid ate a Parasolid See Creating Parasolid Geometries in FE Modeler p 119 for more inform ation Export to a Parasolid File Allows you to convert Initial Geometry to a Parasolid file For Export to a Parasolid File more information see FE i Modeler Parasolid Geometry Creation p 119 Add a Sew Tool Creates a sew tool that can be used to sew together Parasolid Gif Add a Sew Tool bodies See Using the Sew ie Tool p 120 for more informa tion Generate Generate the currently displayed Configuration If applied to an Initial Geometry this indicates f Generate that Skin Detection Tool proper ties have been updated and this can therefore change the topo logy of the geometry Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 8 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types Button Menu Tool Tip Name Displayed Description g
92. e would appear as follows SURFACE NAME Surf1 SURFACE NAME Surf2 CONTACT PAIR INTERACTION Inter1 Surf1 Surf2 SURFACE INTERACTION NAME Inter1 The contact object in FE Modeler will have the name Inter1_Surf1_Surf2 e CONTACT INTERFERENCE Only parameter TYPE CONTACT PAIR is supported SHRINK parameter supported 164 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates ABAQUS Keyword Specifications The Reference Allowable Interference is supported The Shift Direction Vector is NOT supported e FRICTION support Only used in conjunction with the SURFACE INTERACTION keyword contact only Friction coefficient is supported and only read from data lines The following parameters are supported gt ROUGH EXPONENTIAL DECAY gt TAUMAX gt SLIP TOLERANCE LAGRANGE e SURFACE BEHAVIOR NO SEPARATION parameter supported The following items are supported for the parameter PRESSURE OVERCLOSURE gt HARD gt Linear AUGMENTED LAGRANGE parameter supported SURFACE INTERACTION UNSYMM parameter supported ABAQUS Element Types Supported by FE Modeler This section defines the ABAQUS element types that are supported by FE Modeler The supported ABAQUS element types can be categorized as shown below and each ABAQUS element type defines a new FE Modeler element type Th
93. ease 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 40 of ANSYS Inc and its subsidiaries and affiliates Open or Create an FE Modeler System e ABAQUS input files file extension inp CFX input files file extension def res Mesh input files file extension cmdb meshdat Fluent input files file extension msh cas ICEM CFD input files file extension uns e Mechanical APDL input files extension cdb NASTRAN bulk data files bdf dat nas e Mechanical input files dsdb mechdat STL input files st 1 Note If you double click on an empty Model cell in an FE Modeler system the Browse window will open and allow you to select a file but the FE Modeler Editor will immediately open and import the file that you select To add multiple files or if you need to set the properties on the file you are importing always use Add Input Mesh from the right click menu You can include meshes from different file types and upstream connections in a single import b Click Open to add the file To add meshes from upstream analysis systems in the Project Schematic add the mesh as described in Linking FE Modeler Systems p 52 3 Repeat step 2 to add as many meshes as you need for your project 4 Set any necessary properties on the meshes in your list see Setting and Viewing Mesh Properties p 43 5 When you Edit your Model cell to open
94. ease 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 89 Geometry Synthesis Nonlinear Rotation The goal of this example is to describe the use of multiple Design Points to create a nonlinear geometry For the simple model shown below we want to rotate one of the two parts to a given angle If we were to create one Target Configuration with one Design Point and rotate the part 90 degrees we would expect to get the results illustrated below The parameter range is set from an assumed 0 to 90 to match the degrees Initial Configuration Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 90 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Target Configuration If you deformed geometry for a parameter value of 45 degrees here is the expected nonlinear result Desired geometry for parameter value of 45 Target Configuration Initial Configuration Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 91 Geometry Synthesis However the function interpolates the result in a linear manner as shown below Actual deformed geometry for Initial Configuration parameter
95. eated in the Mechanical model FE Modeler linked to a Mechanical system with Parameters Geometry parameters are set up in FE Modeler Changes in parameters will result in a deformed geometry and a morphed mesh that will be sent to the Mechanical application if a link exists to the Model cell in the Mechanical system v 4 Static Structural ANSYS 2 BD model N Engineering Data E 3 bd Parameters 3 Model e Finite Element Modeler 4 wn Setup T 5 E Solution P 6 Results Static Structural ANSYS ipa Parameter Set a e Mechanical system linked to FE Modeler system linked to Mechanical system loop In this example the mesh from the first Mechanical system serves as the input data for the FE System which generates another geometry for the second Mechanical system A X 8 2 Engneerg ata v4 Pais w Mode v 7 ws Engreerng Data vw 4 gt amp Geomery 4 f F nite E erent Modeler as Nox 7 t Mace 7 4 Setup v S he Setup a A S ws Sol shew v G Sokton Z keut 7 7 Resit A Satie Structural ANSYS Sanie tructural ANSYS FE Modeler system linked to Geometry DM A dead mesh is converted to geometry in FE Modeler and sent to a Geometry system The NURBS representation of the Geometry is transferred as for any other case where the FE Modeler cell is linked to a Geometry cell Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidentia
96. ed named selections or criteria based named selections for scoping of objects since these are automatically updated when the model update is complete In the first system seen below the NURBS Parasolid Geometry will be transferred to the Mechanical Geometry cell In the second system seen below the Faceted Geometry and its associated Mesh will be transferred to the Model cell in the Mechanical system as well as any Named Selections Note that the Geometry cell disappears Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 49 System Usage in Workbench v FL Finite Element Modeler 1 Static Structural ANSYS 2 Model IN Engineering Data i Finite Element Modeler 3 ww Geometry 3g 4 Model Pa 5G setup 6 G Solution 7 Results w 4 Yv 2 Model INE Engineering Data j a Finite Element Modeler 3 Model ea 4 a Setup P 5 E Solution 6 E Results Static Structural ANSYS FE Modeler system linked to another FE Modeler system This link transfers the Assembly Mesh and all associated properties elements bodies components etc from the first FE Modeler system to the second No generated geometry information is transferred v 4 v B 2 Model F ga 2 B model _ Finite Element Modeler Finite Element Modeler FE Modeler linked to Mechanical systems This link transfers Material
97. ed using Context Menu Options that display when you right click on the Model cell in an FE Modeler system in the Project Schematic Figure 1 FE Modeler Context Menu Options in the Project Schematic Project Schematic es x FE Finite Element Modeler Edit Finite Element Manage Input Meshes Add Input File Duplicate Transfer Data From New Transfer Data To New Update Clear Generated Data Reset Rename Properties Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 39 System Usage in Workbench Please refer to Context Menu Options for more information on all of the available options such as Du plicate Update Refresh Clear Generated Data Reset Rename Properties and Quick Help Note For FE Modeler the Clear Generated Data command will e Remove all transfer files that are used for downstream connections all files that are stored in the System Addin Connections directory e Retain the FEM fedb and F EM rsx files which are the two files that represent the internal data of the FE Modeler Model e Retain the existing internal representation in the Editor Initial Geometry etc as FE Modeler does not support the ability to erase some internal data while keeping the internal tree structure intact as in the Mec
98. edge translation of 20 If in the Parameter Workspace you set a value of 5 for the first parameter and a value of 15 for the second parameter you will then see the effects of both of these changes in the object called Paramet erized Configuration A Parameterized Configuration object is inserted automatically in the tree when you create a target configuration and is directly driven by the current parameter values Create Target Configuration Highlight the Initial Geometry object in the tree and click the New Target Configuration toolbar button or right click the mouse and select Insert gt Target Configuration Design Points In addition to being linked to a parameter a target configuration is made up of one or more Design Points maximum of three A Design Point defines a precise shape for the target configuration for a given parameter value Transformations are applied to the Design Points Typically a geometric change created by a transformation requires only one Design Point however a nonlinear geometric change requires multiple design points The parameter value that is associated with a Design Point is an arbitrary number that you can change to affect the range of variation of the parameter values used in the Parameter Workspace By default the value used in the first transformation is used as a parameter value in the Design Point If your first transformation is a face offset of 20 then the parameter value of the Design Point is also 2
99. edra is performed indirectly Aspect ratio parallel deviation and maximum corner angle are computed for 3 D solid elements using the following steps 1 Each of these 3 quantities is computed as applicable for each face of the element as though it were a quadrilateral or triangle in 3 D space by the methods described in sections Aspect Ratio Parallel Deviation and Maximum Corner Angle 2 Because some types of 3 D solid element distortion are not revealed by examination of the faces cross sections through the solid are constructed Then each of the 3 quantities is computed as applicable for each cross section as though it were a quadrilateral or triangle in 3 D space Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 127 Mesh Metrics Tool 3 The metric for the element is assigned as the worst value computed for any face or cross section A brick element has 6 quadrilateral faces and 3 quadrilateral cross sections Figure 2 Brick Element p 128 The cross sections are connected to midside nodes or to edge midpoints where mid side nodes are not defined Figure 2 Brick Element oe Element Faces Element Cross Sections A pyramid element has 1 quadrilateral face and 4 triangle faces and 8 triangle cross sections Figure 3 Pyr amid Element p 128 Figure 3 Pyramid Element JA Element Faces Element
100. eeenneeeeeeeeeseees 131 Parallel Deviation Calculation cccccccccccessssssnsceccecceeseessnneceececcesecsnnaeeeeeeseeseeeesaaeeeeeeeseeeeesnanaeess 132 M ximum Corner Angle sonsir mrs e ari a ieta aTe oa Tee ea i bids uate oaae oa adeis aeie 133 JACODIAN RatiOn noeennn an ernai aa E EEEE E dat EE E E as ab cean 134 Warping Factor serens ne Eni EEE EEEE E EEEE E EEE EAEE A R 136 Quality ACTOR oiec n spt E rE A i OAE AEE ATAA AE EE E cena 139 Modal Simulation Tool iyi svcd gobs ancd ign su ao dighionn ssa en vd nd Vdc eRe Ba ans 9 Cov enna seabed na hee Dean ee sa naeihinnas send el otha 141 OP CONS i232 coher E T T dk BS ae Pa vd dni aie Das ae Oca eee eens ecb bere eet 145 Import Specifications eenn ires ore eia a aceon Wea EEEE E ESEA EE ECE EE EEE aa 147 Mechanical APDL Archived File Command Specifications sscccccccceeesesennneeeeceecesseeseneeeeeeeeseeeees 148 General Command Saaren cqasaatentedee cv E EE E ER Eea E EEEO RRS 148 Coordinate S stems Commands asies aa e A E e aa E e an 149 Node CommandSesseoiiscetire t na aE EE EE E A E EEE a a a 149 Element COMMANGS sais ccciciees tees vacedecosceauteays cocoa AESTATE E NARRE NETA EREE rA a aKa OTTAA does 149 Material Commands ie si enaa aaa eaae ca an E Oena E aeS ea a eaaa A aaa aE 150 Prop r ComM aNd Saa a e A WARE i cs So Eades es edd OU RA ERA ae 151 Contact Properties oree eea E EEEE aroi a EEA E ENTAKT EEE EK EE Nea 152 Shell Thickness Properties eienenn eenn
101. eld 5 Select Generated Data in the Tree View section of the screen or the Export button in the Standard Toolbar Modal analysis specifications are now included Verify Node Location To verify the location of nodes contained in a constraint set or to verify the specific degrees of freedom that are constrained use the Constraints View This view displays the settings for each constraint set available For example if a Constraint Set from a NASTRAN model has a Set ID of nine 9 the Constraints View may display the following components SPC lt SET 9 DOFS 1 2 3 4 5 6 VALUE 0 gt Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 142 of ANSYS Inc and its subsidiaries and affiliates SPC lt SET 9 DOFS 1 2 3 4 5 6 VALUE 0 gt SPC lt SET 9 DOFS 1 VALUE 0 gt SPC lt SET 9 DOFS 2 3 VALUE 0 gt By selecting each of these components you can visualize the nodes that are constrained in all directions as well as those constrained in direction 1 UX 2 UY and 3 UZ only All of these values compose Constraint Set 9 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 143 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 144 of ANSYS Inc and its subsidiaries and affiliates FE Modeler Opti
102. elect the desired transformation type You can also right click the Design Point object and select Insert gt transform ation type 3 If you are selecting parts click on the Geometry field in the Details View to expose the Apply button 4 Click on the selection button in the toolbar for the type of object vertices edges faces or parts that you want to select or right click on the model and select the type of objects you want to pick from the Cursor Mode menu 5 Select the desired object s on the model and click Apply in the Geometry field Use Ctrl click to select multiple objects 6 Based on the type of transformation modify the fields of the Details View accordingly 7 Click the Generate Design Point button to perform the transformation Note When selecting parts all objects that are selected must be parts Other selections can mix vertices edges and faces Mesh Quality after Morphing During the mesh morphing process nodes are moved to adapt the initial FE mesh to the transformed Target Geometry It is possible that some elements may get distorted during this process resulting in an unacceptable element quality for an analysis The mesh morphing process itself does not perform any shape checking However you can use the Mesh Metrics Tool to review element shape metrics before performing analyses on the morphed mesh Note When an Initial Geometry is created the nodes of the mesh are associated to the
103. ements Beam Properties BEAM SECTION FRAME SECTION BEAM GENERAL SECTION Arbitrary hex trapezoid or elbow sections are NOT supported ELSET parameter is supported Material properties supported for General Beam and Frame The direction cosines of a beam section axis will be used to define the orientation node defined with the other nodes of an element Shell Properties SHELL GENERAL SECTION SHELL SECTION MEMBRANE SECTION as applicable supports the following COMPOSITE parameter supported gt Orientation angle is only supported fourth item on the data line NODAL THICKNESS parameter supported Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 162 of ANSYS Inc and its subsidiaries and affiliates ABAQUS Keyword Specifications gt A constant thickness definition will exist but is not used by the elements The definition from the NODAL THICKNESS keyword is used instead ELSET parameter supported ORIENTATION parameter supported OFFSET parameter supported Restrictions when exporting to the Mechanical APDL application gt High order shells ignore offsets gt Variable thickness values are averaged Material supported Thickness supported SOLID SECTION ELSET parameter supported ORIENTATION parameter supported Material supported e SPRING Linear only SPRINGA NOT supported The degree of freedom DOF
104. ent in the model along with corresponding element count A visualization of element type usage in the model Element selection filtered by one or more element types Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 12 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types Import Summary Generate Data Element Types 8 Linear Wedge Linear Hexahedron lt Spring UY Spring UZ wa Linear Quadrilateral Contact Linear Quadrilateral Target a Linear Triangular Contact Linear Triangular Target Mz Bodies 1 ol UZ Contacts 10 x Details view Mesh Data Number of 282 Mechanical Solid185 NASTRAN CPENTA ABAQUS N C3D6 Note Colors in the graphics display differentiate the bodies Filtering displays excluded elements as translucent or invisible Interactive selection applies only to opaque elements Bodies View The purpose of the Bodies view is to provide A listing and visualization of bodies defined in the FE model A listing of element types present in a given set of bodies along with corresponding element counts An element selection filtered by one or more bodies An element selection filtered by one or more element types within a set of bodies e The ability to group elements into multiple bodies See Grouping Bodies Release 15 0 SAS IP Inc Al
105. entities processed from the imported data Table 1 FE Model Summary Summarizes the quantities for each entity supported in FE Modeler Note The number of components will not change if components are added or deleted during an FE Modeler session Table 2 Bodies Summary Summarizes the number of nodes and elements associated with each body By default only one body will be generated when importing a single Mechanical APDL archived file NASTRAN file or ABAQUS file Importing several meshes will result in multiple bodies Table 3 Element Types Summary Summarizes the element types that were processed A generic description is given plus the appropriate element type name for each finite element system supported by the Generate Data option Table 4 Issues raised by the Import Process Summarizes any problems or situations found during the import For each file imported the name of the file will be shown followed by the issues for that file For multiple imports the summaries will be appended Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 10 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types A typical Import Summary is shown here Import Summary TABLE 1 FE Model Summary Description Total Nodes Total Elements Total Body Elements Total Comtact Elements Total Spot Weld Elements Element Types Coordinate Systems Matenats
106. ents Some in the finite element community have reported that large angles approaching 180 degrade element perform ance while small angles don t Maximum Corner Angle Calculation The maximum angle between adjacent edges is computed using corner node positions in 3 D space Midside nodes if any are ignored The best possible triangle maximum angle for an equilateral triangle is 60 Figure 14 Maximum Corner Angles for Triangles p 134 shows a triangle having a maximum corner angle of 165 The best possible quadrilateral maximum angle for a flat rectangle is 90 Figure 15 Max imum Corner Angles for Quadrilaterals p 134 shows quadrilaterals having maximum corner angles of 90 140 and 180 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 133 Mesh Metrics Tool Figure 14 Maximum Corner Angles for Triangles ec 0 60 165 Figure 15 Maximum Corner Angles for Quadrilaterals 90 140 180 Jacobian Ratio Jacobian ratio is computed and tested for all elements except triangles and tetrahedra that a are linear have no midside nodes or b have perfectly centered midside nodes A high ratio indicates that the mapping between element space and real space is becoming computationally unreliable Jacobian Ratio Calculation An element s Jacobian ratio is computed by the following steps usin
107. ents exist in the input mesh These node components will be internally converted into shell element components or facets of solid element components to be used in the generation of the geometry Some additional edges and vertices will be added to the geometry if applicable To use node components in the geometry generation change the Use Node Components option in the Details View of Geometry Synthesis to Yes and generate the geometry You can also see the preview results as usual by creating the SDT components If Use Node Components is set you will see the following behavior If you add a Node Component to the Components item in the tree the shell elements and faces of solid elements that are defined by the nodes of the node component will be removed from the SDT skin when it is generated Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 69 Geometry Synthesis If you remove a Component from the Components item in the tree the shell elements and faces of solid elements that are defined by the nodes of the node component will be added to the SDT skin when it is generated Note If you change Use Node Components to yes after having created the initial geometry the initial geometry will be invalidated Elements Supported The Initial Geometry feature supports 2D shells and 3D solids All other element types if prese
108. er Mesh Morpher 1 e tT Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 103 Geometry Synthesis 4 Now create a Transformation A Projection transformation is applied in this example a The Target Configuration object is already highlighted so you can click the Transformation drop down menu and select the Projection option amp Transformation v G Translation E Rotation i Face Offset Edge Offset Ea Projection b Select a face for this transformation c In the Details View for the Projection object click the Geometry field then click the Apply button 5 Now add a Working Geometry This geometry provides a support face for the projection Highlight the Working Geometries object and click the New Working Geometry toolbar button A a Working Geometry object is added to the tree The result is illustrated below Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 104 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Outline Project Import Summary Generate Data Element Types 1 5 Bodies 1 a Components 1 2 Modal Simulation E Geometry Synthesis i 7 Skin Detection Tool G Working Geometries 20 Working Geometry E Initial Geometry AGB Geometry EG Target Configuration El p Design Point Pr
109. er of poorly shaped elements that are confined to a small local area The total volume of these elements might not be sig nificant compared to the volume of the entire model As a result the bar corresponding to this low quality factor may not be significant The mesh metrics tool displays one of the metrics shown below without qualifying the elements for acceptability Details of how the various mesh metrics are calculated are given in Details of Element Shape Checking Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 126 of ANSYS Inc and its subsidiaries and affiliates Shape Testing jee 8 Node Linear Hexahedron 8 Node Linear Wedge g aie 4 Node Linear Triangular Shell 4 Node Linear Quadrilateral Shell 21 10 v D wi 16 00 v 5 12 00 gt ay G 5 00 lt r w 4 00 3 A Ww T 0 00 a 0 00 0 25 0 50 0 75 L i Element Metrics Shape Testing Shape testing described in the following sections is performed by computing shape parameters that are functions of geometry 3 D Solid Element Faces and Cross Sections Aspect Ratio Calculation for Triangles Aspect Ratio Calculation for Quadrilaterals Parallel Deviation Calculation Maximum Corner Angle Jacobian Ratio Warping Factor Quality Factor 3 D Solid Element Faces and Cross Sections Some shape testing of 3 D solid elements bricks hexahedra wedges pyramids and tetrah
110. es adding or deleting meshes from the collection changing any properties for any mesh e changing the Unit System on the Assembly Mesh If you make changes to your mesh collection while the Editor is open nothing happens unless you choose explicitly to Refresh the FE Modeler Model cell In this case the opened Editor will re import the new sets of meshes using their new properties Reordering Meshes in the Outline You can reorder the meshes in the Outline by dragging them to a new location Note that this has no effect on how FE Modeler processes the meshes It is for display purposes only Setting and Viewing Mesh Properties Once you have added all of your mesh files to view the file information and set the mesh properties do the following 1 2 Right click on the Model cell and select Manage Input Meshes Outline and Properties views will open in the workspace In the Outline view the meshes you have added are shown under the Assembly Mesh item in the Outline Click on each mesh in the Outline to view and set the mesh options in the Properties view Meshes im ported from files will have the following properties Mesh File Name The name of the imported mesh file e Mesh File Format The format of the imported mesh Unit System Allows you to select an appropriate unit system for that mesh The default value for imported mesh files is the current value of the Unit System property of the Assembly Mesh
111. es The maximum number of SDT components treenodes dis played in the Outline This field can be edited only if the Display all SDT Components treenodes field s value equals No Using Iterative Skin Detection Iterative Skin Detection allows you to use the Skin Detection Tool to guide the segmentation of the mesh With this method the Skin Detection Tool works on the mesh minus the components that are added to the user components user components can be imported with the mesh created manually with the selection tools or added from the Skin Detection Tool components Iterative Skin Detection allows you to apply different skin detection settings to different components of a single mesh Follow the steps below to use Iterative Skin Detection 1 Open or Import a mesh to FE Modeler select your desired Skin Detection Tool settings and select Create skin components Refer to the beginning of this section for more information on this process 2 Right click on desired skin components in the Tree Outline and select Add to the Components to set these components aside in a separate Components list in the Tree Outline Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 71 Geometry Synthesis Bodies 1 foo eS iS Materials 3 He Thicknesses 5 a Components 9 Rotated Nodes SDT Component 128 WE SDT Component 13
112. etary and confidential information of ANSYS Inc and its subsidiaries and affiliates 117 118 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates FE Modeler Parasolid Geometry Creation FE Modeler allows you to create Parasolid Geometries from Legacy Meshes that can be edited in DesignModeler or exported to a Parasolid file if you have the appropriate licenses The Parasolid Geometry created in FE Modeler is a set of Analytic planes and cylinders and NURBS surfaces These surfaces are created by fitting the faceted surfaces within a tolerance and this tolerance is computed with respect to the mesh Note Due to this tolerance some analytic geometry will not be classified correctly and geometric operations applied on this geometry may fail in DesignModeler Creating Parasolid Geometries in FE Modeler To Create A Parasolid Geometry 1 Create a FE Modeler system in the Workbench Project Schematic and import a mesh For more on im porting legacy mesh data please see Importing Legacy Meshes or FE Modeler Basic Workflow p 37 for FE Modeler specific instructions 2 Select the Skin Detection tool in the Tree Outline and then in the Details view set the Algorithm field to Detection by curvatures or Detection by angle Detats Views 3 Definition 7 Execution type Automate Algorithm Detection by curvat
113. ffiliates Using the Sew Tool z Model A2 2 Import Summary Green Re Oota o Elemert Types 1 E Ds bodes 1 Materiais 1 Ga Goometry Syrthesis E pp Fn Detection Toot Workng Geometries Y triad Geometry J Gematry y Pat body a T Geo Lid Expert to a Parasobd Pse mke gt Rename X Delte P body z body 2 A Sew item displays in the Tree Outline Select the Sew object Outline G working Geometries Gl Initial Geometry A Geometry Parasolid Geometry Ait Sew 1 2g Sew 2 A amp M Geometry BQ Part y amp Body y amp Body y Wy Body y amp Body C Details Yiew Geometry Definition Type Tolerance Create a solid Suppressed 3 In the Details view click in the Geometry field under Scope Details View Scope Geometry Apply l Cancel Definition Type Sew Tolerance 0 0001 Create asolid Yes Suppressed No 4 There are several ways to select the bodies that you want to sew e In the Tree Outline select all of the bodies that you want to sew To select multiple bodies in the Tree Outline hold down the Ctrl or the Shift key and click to select bodies Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 121 Parasolid Geometry Creation Click on the Select Bodies icon in
114. fications jascetecsisiwcrcdutegroeismiv ni sand ea i a aa Gea etoe 158 Supported General Keywords ccccccccccsssssssssecceeeecesssessnaeeeeeceesesesensnaeeeeeecesseessnaaeeeeeseseseeennaeess 158 Supported Node Keywords esssssssseseresssssssereeesssssssereeeesssssssrereesssssssetrteesssssseeeeeeessssssetreeeesssseeet 160 Supported Element Keywords ccsssssceccccceceeeessneceececeeeseessneeeeeceseeseeseneaeeeeeeeeseeeesnaeeeeeeeeeeeeees 160 Supported Materials Keywords ccccccccsessssnecceececesseessnacececeeeseseesnneeeeeeeceseeessnaneeeseseceseeennnaeess 161 Supported Properties KeyWords csssscccccccceessessnnneeceeceeeseesnnneeeeeeeeesseensnaeeeeeeseseeeessnaeeeeeeeeseees 162 Supported Loads Boundary Conditions KeyWOrds cessssceeeessnceeeeessceeeeessaeeeeesseeeesessaeeeeeesaaes 163 Supported Contact Keywords ccsssccccccccsssessssneceececeessesssneeeeeeeeseseeessaeeeeeeceeseeessaeeeeeeeseseeeseaaes 164 ABAQUS Element Types Supported by FE Modeler cccccccssssssnececececesseeesnneeceeeeceseesnnaeeeeeeeess 165 Mechanical Data Processing Specifications iis ness scores ue ssnraoun and sanaibaeaviaerdpavalesvaawaaieass seca iaovneialartawslaneroeta 168 Solver File Creations ccccccss wuscceticeces a EE sees ada E Vick eden de E N a aaas 173 Mechanical APDL as the Target System i yivieusvagtncncsing coanvsniynsaioanaainusyag oncmativa ancenanypngarcianeeueragaasaiey ton snsyies 173 ABA
115. fied set of rod elements only e Differentiation of rod elements with different properties by color Outline gt Materials 18 ox Thicknesses 21 Rod Properties 13 Rod Property 1010 a Rod Property 3004 mE Rod Property 3005 Rod Property 3006 Rod Property 3007 Rod Property 3008 Rod Property 3009 a Rod Property 3014 Rod Property 3015 Rod Property 3016 Rod Property 3017 Rod Property 3018 a Rod Property 3019 Details view Area 4 76e 003 Nonstructural Mass QO Note Displayed only if rod elements are present in the model e For rod properties from A Mechanical APDL archived file rod ID numbers are assigned by FE Modeler A NASTRAN PROD card rods for a single mesh import or for the first mesh to be imported retain their original ID numbers Beam Properties View The purpose of the Beam Properties view is to provide a e Listing of beam properties for example number of beam sections location along the beam area of cross section Inertia terms torsion constant and non structural mass for each beam section Grouping of beams with identical properties e Visualization of beam elements within a model Filter for element selection for a specified set of beam elements only Differentiation of beam elements with different properties by color Release 15 0 SAS IP Inc All rights re
116. flow Inserts upstream Fluid Flow Blow Molding Polyflow system with a Transfer connection from the Mesh cell to the Model cell Fluid Flow Extrusion Polyflow Fluid Flow CFX Inserts upstream Fluid Flow Extrusion Polyflow system with a Transfer connection from the Mesh cell to the Model cell Inserts upstream Fluid Flow CFX system with a Transfer connection from the Mesh cell to the Model cell Fluid Flow Fluent Inserts upstream Fluid Flow Fluent system with a Transfer connection from the Mesh cell to the Model cell Fluid Flow Polyflow Inserts upstream Fluid Flow Polyflow system with a Transfer connection from the Mesh cell to the Model cell Harmonic Response Model Inserts upstream Harmonic Response system with a Transfer connection from the Model cell to the Model cell Harmonic Response Setup Inserts upstream Harmonic Response system with a Transfer connection from the Setup cell to the Model cell Linear Buckling Model Inserts upstream Linear Buckling system with a Transfer connection from the Model cell to the Model cell Linear Buckling Setup Magnetostatic Model Inserts upstream Linear Buckling system with a Transfer connection from the Setup cell to the Model cell Inserts upstream Magnetostatic system with a Transfer connection from the Model cell to the Model cell Magnetostatic Setup Inserts upstream Magnetostatic system with a Transfer connecti
117. formation of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Definition Associated P Parameter v Mesh Morpher 1 90 The polynomial function is now built with a parameter and four design points three plus the initial configuration The values of the parameter for the Initial Configuration and the three different design points are Initial Config uration 30 Degrees 60 Degrees 90 Degrees Note The Initial Configuration represents two surfaces at 0 degrees but the surfaces are shown several degrees apart so they can be distinguished from one another Now in the Mechanical application when you modify the value for the parameter between 0 and 90 and update the geometry you will receive a more accurate deformed geometry and mesh This methodology can then be used to simulate a nonlinear transformation study Face Projection During this example an FE mesh is imported into FE Modeler an Initial Geometry is created and it is then transformed using the ANSYS Mesh Morpher feature This example describes the steps to create a projection transformation by associating a separately imported geometry 1 In the Workbench Project Schematic create a new FE Modeler system and Import the Mesh located at Ansys Inc v150 Al SOL Samples FEModeler Projection_Mesh nas For more info
118. formation of ANSYS Inc and its subsidiaries and affiliates 87 Geometry Synthesis Graphics d In the Details View of the Face Offset object enter a value to offset the face 5 has been entered for the purposes of this example and then press Enter e Select the Click to Modify option of the Direction field and change the direction by clicking the arrow in the graphic window Make sure that the direction is inward and then click Apply f Click Generate the Design Point The initial geometry and the result of the second configuration follow Initial Configuration Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 88 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Transformation Project Import Sumenary Generate Data 3 Element Types 2 DS Bodies 1 H Moterials 1 E r Components 3 E A Geometry Synthesis lip Shin detection tool Intia Geometry ey Part E GB Target Configuration E Design Point JB Face Offset S A Target Configuration 1 Ey Design Point 1 AB Face Offset 1 y Parameterized Configuration Two independent target configurations each one controlled by its own parameter can now be modified using the Parameter Workspace The parameter values can be changed in the range of 0 to 5 for both configurations because this is the value used in the offsets in this example Rel
119. g a al a a a a aes ad aw Details View General Pipe s Outer Diam 36 512 Pipe s Thickness 7 0104 Radius of Curvature 280 Note Displays only if curved pipe elements are present in the model Displays pipe properties from PBEND card of NASTRAN if present Curved pipe properties retain their original number in NASTRAN data Geometry Synthesis View The purpose of the Geometry Synthesis view is to provide A visualization of the Assembly Mesh s finite element mesh e The ability to group exterior element faces into components using the Skin Detection Tool Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 34 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types e The ability to generate a new geometry from the FE mesh see Initial Geometry And given the proper licensing transform the new geometry using the ANSYS Mesh Morpher feature Outline Import Summary Generate Data Element Types 8 Bodies 1 5 Contacts 10 Materials 3 Spring Properties 2 Components 42 Constraints 3 Forces 1 Geometry Synthesis Skin detection tool Details View E Definition Database Not yet set Mesh C Documents and Setti Initial Geometries Please see the Geometry Synthesis section for detailed information about the operation and use of this feature
120. g the full set of nodes for the ele ment 1 At each sampling location listed in the table below the determinant of the Jacobian matrix is computed and called Rj Ry at a given point represents the magnitude of the mapping function between element natural coordinates and real space In an ideally shaped element R is relatively constant over the element and does not change sign Element Shape Rj Sampling Locations 10 node tetrahedra Integration points 5 node or 13 node base corner nodes and near apex node apex R factored so that a pyramid pyramids having all edges the same length will produce a Jacobian ratio of 1 8 node quadrilaterals corner nodes and centroid 20 node bricks all nodes and centroid all other elements corner nodes 2 The Jacobian ratio of the element is the ratio of the maximum to the minimum sampled value of R If the maximum and minimum have opposite signs the Jacobian ratio is arbitrarily assigned to be 100 and the element is clearly unacceptable Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 134 of ANSYS Inc and its subsidiaries and affiliates Shape Testing 3 If the element is a midside node tetrahedron an additional Rj is computed for a fictitious straight sided tetrahedron connected to the 4 corner nodes If that R differs in sign from any nodal Rj an extremely rare occurrence the Jacobian ratio is arbitr
121. h a Transfer connection from the Model cell to the Engineering Data cell Electric Geometry Connect to downstream Electric system with a Transfer connection from the Model cell to the Geometry cell Electric Model Connect to downstream Electric system with a Transfer connection from the Model cell to the Model cell Explicit Dynamics Explicit Dynamics En gineering Data Inserts downstream Explicit Dynamics system with a Transfer connection from the Model cell to the Engin eering Data cell Explicit Dynamics Geo metry Connect to downstream Explicit Dynamics system with a Transfer connection from the Model cell to the Geometry cell Explicit Dynamics AN SYS Model Connect to downstream Explicit Dynamics system with a Transfer connection from the Model cell to the Model cell Explicit Dynamics LS DYNA EXPORT Explicit Dynamics LS DYNA EXPORT Engin eering Data Inserts downstream Explicit Dynamics LS DYNA EX PORT system with a Transfer connection from the Model cell to the Engineering Data cell Explicit Dynamics LS DYNA EXPORT Geo metry Explicit Dynamics LS DYNA EXPORT Model Connect to downstream Explicit Dynamics LS DYNA EXPORT system with a Transfer connection from the Model cell to the Geometry cell Connect to downstream Explicit Dynamics LS DYNA EXPORT system with a Transfer connection from the Model cell to the Model cell Finite Element Modeler
122. h and the geometry must match per Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 73 Geometry Synthesis fectly have the same coordinate system origin and use the same unit system If these conditions are not met the association process will fail Note The above toolbar selections are also available through the right click context menu Initial Geometry The FE Modeler Initial Geometry feature creates a geometry from an existing or legacy FE model To create an Initial Geometry in FE Modeler 1 Open a database or import mesh data Please see the Basic Workflow section for additional information Optional Define exterior faces using the Skin Detection Tool If necessary modify the Tolerance Angle to achieve a desired number of faces 2 Select the Geometry Synthesis object in the Outline and click the Initial Geometry button or right click the mouse and select Insert gt Initial Geometry This step generates the initial geometry and asso ciates the FE mesh with the geometry Delete Initial Geometry To delete an Initial Geometry Highlight Initial Geometry right click the mouse and select Delete Initial Geometry Parts and Bodies As illustrated below when an Initial Geometry is created it is made up of Parts and Bodies A Body is a single component in the model either a solid or a surface A Part is
123. hanical application Open or Create an FE Modeler System Import a Project from a Previous Release To open an existing FE Modeler database from a previous release do the following 1 In Workbench click on the Import button or select File gt Import 2 In the Import window select File Type Workbench R10 11 Project wodb 3 Click on a wbdb database and select Open to create a Finite Element Modeler system as seen in Figure 1 FE Modeler Context Menu Options in the Project Schematic p 39 Note If you only have a fedb file you can import it using the appropriate filter Create a New FE Modeler System To import Mesh data into a new FE Modeler system do the following 1 From the Toolbox double click the Finite Element Modeler icon in the Component Systems list or click and drag the Finite Element Mo deler icon into position in the Project Schematic to create a Finite Element Modeler system as seen in Figure 1 FE Modeler Context Menu Options in the Project Schemat ic p 39 2 Add Meshes to your FE Modeler system by either adding meshes from files or from upstream analysis systems To add meshes from files a Right click on the Model cell and select Add Input Mesh Select a File Type Mesh Format and Browse for a Mesh file Only files with the selected File Type Mesh Format will be visible in the Browse window FE Modeler allows you to import the following file types Rel
124. he FE Modeler system Right click on a mesh cell in the Outline and select Delete File to remove that mesh from the list Click OK in the confirmation dialog to remove the mesh If the mesh was from an upstream analysis system the connection to that system will be removed in the Project Schematic On the Project Schematic delete the link connecting an upstream analysis system to the FE Modeler system This will remove the mesh from the list in the Outline Scaling the Imported Meshes The Properties for each imported mesh allow you to select an appropriate unit system for that mesh The default value for mesh files is the current value of the Unit System property of the Assembly Mesh Models imported from the ANSYS Mechanical and Meshing applications use the unit systems as defined in those applications If those units are not the same as the units specified by the user for the Assembly Mesh the model will be scaled to the Assembly Mesh unit system The Assembly Mesh defaults to the MKS mm unit system Note Since meshes imported from files do not necessarily contain any unit system information it is important that you set the Unit System property to match the unit system that was used when the mesh was created The mesh will then be scaled from that unit system to the unit system defined for the Assembly Mesh if necessary If you do not set the Unit System property to match the unit system that was used to create the file the scaling of
125. he toolbar Or Left click on the Parasolid Geometry in the Tree Outline and select Export to a Parasolid File Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 122 of ANSYS Inc and its subsidiaries and affiliates Export a Parasolid File Fle View Insert Took Mep i G a Qrvtprevew Got gt co Parasotd Geometry expert to a Parasokd Fle SapAdd a Sew Tool boty OS Lis Gece SB Add a Sew Tool vB wm rename XK Oelete 3 Enter a name and location for the Parasolid file and click OK Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 123 124 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates FE Modeler Mesh Metrics Tool The FE Modeler Mesh Metrics tool allows you to test and evaluate the mesh quality of a model to avoid inaccurate or incomplete solutions This tool performs shape testing for all continuum elements 2 D and 3 D solids 3 D shells This testing is performed by computing shape parameters such as Jacobian ratio which are functions of geometry The following element shape parameters are available to display in the Mesh Metrics tool e Aspect Ratio for Triangles and Quadrilaterals e Jacobian Ratio e Parallel Dev
126. ia A E E T E N E E EE 152 M ss Properties reene asea a n aTe E er e E o A O E Ee a e E a E SS 152 Rod Properties si ccccesescberve aiin eh IEEE E S E EE O EE T A a 153 B am Properties ienen nni aE a E E E EEE K EAEE EET E EE ENS 153 Spring Properties inerci tonniin a cites oa a a e a a a i E 153 NASTRAN Bulk Data Processing Specifications essescecessecceseesseseesessensessesseecescesseseeseeseneeeseseees 153 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information iv of ANSYS Inc and its subsidiaries and affiliates FE Modeler User s Guide Supported General Specifications cessssssccccecceeesesenneeceecccesseessnaeeeececeseseeennaeeeeeeeeseeenenaaes 154 Supported Coordinate System Specifications ccccsssscecccceeceseeessneeceeeceseseesnneeeeeeeceseeeneaees 154 Supported Element Specifications ccc cccssssssssssssssscsssssscsseesaeeseeaeeseeeeeseaeeaeeaeaeseeeeeaeseeeaeaeeaaaeaaes 154 Supported Loads Boundary Conditions Specifications cccceeseeccccceeeesseeennceceeeeeeeesessneeeeeeeeess 155 Supported Material Specifications ccccccccccscscccececceceeceseeeeeeeeeceeeeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeeeeeeeeeeeeess 156 Supported Property Specifications ccccccccccssssssssnececeecceeeesnnneeeeeeeceseneesnneeeeeeeeeseesneeeeeeeeeesseeeeea 157 Supported Specialty Elements niini anna a aaa a Caa EER a 157 ABAQUS Keyword Speci
127. iation Maximum Corner Angle e Warping Factor Quality Factor Accessing Mesh Metrics Once a model is imported you access the Mesh Metrics tool from the Insert drop down menu as shown below or by using the context sensitive right click menu Insert Tools Help Mesh Metrics QA Modal Simulation The illustration shown below displays an example of Mesh Metrics elements as displayed in the tree You can select these individual elements and then create components that meet specified criteria ail Mesh Metrics Hz 30mm_basline 8 Node Linear Hexahedron 8 Node Linear Wedge 4 Node Linear Triangular Shell 4 Node Linear Quadrilateral Shell Once inserted and the Mesh Metrics tree object is selected a bar chart is displayed as illustrated below The chart is labeled with color coded bars for each element shape represented in the model s mesh The Details View allows you to change the type of mesh metric being displayed For the illustration shown below the Quality Factor Range is selected The Quality Factor Range displays the minimum and maximum value over the entire mesh Negative metric values are highlighted to indicate possible problem areas The Displayed Metric Range detail allows you to enter a range for the metric to display and display only the elements that meet this criteria You can also select individual bars from the chart and display Release 15 0 SAS IP Inc All rights reserved
128. ick the New Target Configuration button A Target Configuration object is added to the tree under Initial Geometry Project Import Summary feari Generate Data oa Element Types 2 ABZ Bodies 1 Components 3 A Geometry Synthesis Hh lp Skin detection tool EQ Initial Geometry E ER y Part QB Target Configuration oJ Design Point i Parameterized Configuration a cr oa ao ww a Details View pi Definition Associated Parameter Mesh Morpher 1 Design Ponts it Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 84 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Examining the Details View for the Target Configuration you can see that a parameter is automatically created This parameter is linked to the new Target Configuration and can be modified using the Parameter Workspace 5 Now create a Transformation A Face Offset transformation is applied in this example a The Target Configuration object is already highlighted so you can click the Transformation drop down menu and select the Face Offset option b The following connector is selected for the first transformation c In the Details View for the Face Offset object click the Apply button in the Geometry field enter a value for the Face Offset 5 mm has been entered in the example and press the Enter key Release 15 0 SAS IP I
129. ied to multiple Target Configurations This allows you to control the parameters of the individual transformations compared to the case of a single target configuration where one parameter varies all of the transformations Create Design Point One Design Point is created with each Target Configuration To add additional Design Points highlight the Target Configuration object in the tree and click the Design Point toolbar button or right click the Target Configuration object and select Insert gt Design Point Transformation Types Transformations are applied to design points and allow you to create deformations on a geometry All transformations are isotopologic in order to maintain the integrity of the original geometry The following transformation types are supported Translation of vertices edges surfaces or parts A translation is given in the global Cartesian coordinate system or by the definition of a translation vector between two points Rotation of vertices edges surfaces or parts You must define a rotation axis between two points or a point and a vector and then give a rotation angle in degrees or radians Face Surface Offset a Face Offset can be Uniform Enter a negative or positive Offset Value to move the face inward or outward Non Uniform Enter a negative or positive Offset Value to move the face inward or outward With this transformation you can offset a surface with a nonlinear curve In ad
130. ies ABAQUS and the Mechanical APDL application support automatic component creation in FE Modeler For these files the automatic creation is based on commands contained in the input files In the Mechanical APDL archived file cdb the CMGRP command defines assemblies that are read by FE Modeler ABAQUS files provide a list of names that define assemblies using the ABAQUS keywords NSET and ELSET Creating Components and Assemblies Sometimes it is convenient to group portions of the model to form components and give the compon ents recognizable names such as WHEEL2 and FIN7 Node or Face components can be used when generating the initial geometry to create geometric objects on which you can apply loads constraints etc Node components can create the following objects on the geometry faces composed of element faces for which all of the primary nodes are selected edges a set of linearly contiguous primary nodes e vertices individual primary nodes not contiguous to any other component primary nodes A component that bisects an existing face will create two separate faces on the geometry Note User created node components behave as follows Geometric objects are only created for node components if the Use Node Components field in the Details View of the Geometry Synthesis object is set to Yes before the Initial Geometry is generated Although the secondary nodes are saved as part of node components only the p
131. ies and affiliates 59 System Usage in Workbench Transient Structural Transient Structural Engineering Data Inserts downstream Transient Structural system with a Transfer connection from the Model cell to the En gineering Data cell Transient Structural Geometry Transient Structural Model Connect to downstream Transient Structural system with a Transfer connection from the Model cell to the Geometry cell Connect to downstream Transient Structural system with a Transfer connection from the Model cell to the Model cell Rigid Dynamics Rigid Dynamics Engin eering Data Inserts downstream Rigid Dynamics system with a Transfer connection from the Model cell to the Engin eering Data cell Rigid Dynamics Geo metry Connect to downstream Rigid Dynamics system with a Transfer connection from the Model cell to the Geometry cell Rigid Dynamics Model Connect to downstream system with a Transfer con nection from the Model cell to the Model cell Transient Thermal Transient Thermal En gineering Data Inserts downstream Transient Thermal system with a Transfer connection from the Model cell to the Engin eering Data cell Transient Thermal Geometry Connect to downstream Transient Thermal system with a Transfer connection from the Model cell to the Geometry cell Transient Thermal Model Connect to downstream Transient Thermal system with a Transfer connection from the
132. ine the Vertex Insertion Angle The Vertex Insertion Angle is the minimunm angle to insert a vertex between two free edges of Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 66 of ANSYS Inc and its subsidiaries and affiliates Using 1D Geometry in FE Modeler mesh During the generation of the geometry if two segments of an edge abruptly make an angle greater than the Vertex Insertion Angle then the edge is split and a vertex is inserted The Vertex Insertion Angle feature invisible to the user because the vertices are not displayed is vital for the all subsequent Transformations and the Mesh Morph ing process Automatic Face Split Select Yes or No to turn Automatic Face Split on or off While generating the Initial Geometry this property enables further face split when you en counter faces with parametric spaces that cannot be easily built These faces would lead to Problem atic Faces and setting this property to Yes enables an algorithm that minimizes this side effect The drawback is that the Geometry may not have the desired topology Create Wire Geometry Select Yes or No to turn Create Wire Geometry on or off This property enables the generation of 1D geometric entities when generating the Initial geo metry Use Node Components Select Yes to reuse the node components defined in an imported model during the geometry synthes is This will
133. input meshes that are specified for a system 1 a Assembly tosh 2 Q From cet as 3 we FEMod TT Finite Element Modeler Model Finke Element Modeler Emneering Data Q From Cel C4 05 Geometry rhod setup e Solution 2 Resuts Static Structural ANSYS vO We WN VIS wWii Ais I Engineering Data Geometry rodel wn Setup 6 Solution p Results Static Structural ANSYS X 1 2 3 4 S 6 7 HELI FE Modeler as a Downstream System Mechanical system linked to FE Modeler at the Model level This link transfers the Mesh the Contact data and also the Named selections v A v B FE Finite Element Modeler es Static Structural ANSYS 2 Engineering Data o 4 2 on Model Ts 3 ig Geometry 7 7 Finite Element Modeler 4 Model T a 5 a Setup amp QW Solution E Results Static Structural ANSYS If the user has defined a Named Selection in a Mechanical system Components are created when transferring the model from the Mechanical system to an FE Modeler system If the named selection Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 47 System Usage in Workbench is a set of faces then the components are taken into account during the geometry synthesis faces matching the components appear in the geometry If for example you have
134. ions View The purpose of the Constraint Equations view is to provide A listing of all constraint equation definitions and values present in the model e A visualization of the location of constraint equations Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 30 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types Mass Properties 183 Spring Properties 30 Components 2 Constraint Equations 170 TA Constraint Equations 1 TA Constraint Equations 2 TA Constraint Equations 3 TA Constraint Equations 4 TA Constraint Equations 5 TA Constraint Equations 6 TA Constraint Equations 7 TA Constraint Equations 8 TA Constraint Equations 9 1 2 2 TA Constraint Equations 10 TA Constraint Equations 11 TA Constraint Equations 12 TA Constraint Equations 13 TA Constraint Equations 14 FA Constraint Equations 15 E General Type Constraint Equation Number of Terms 2 Note Displayed only if constraint equations are present in the model e Three types of equations are supported Constraint equation Coupled node Rigid e For constraint equations from A NASTRAN MPC constraint equation card constraint equations retain their original ID number The ABAQUS EQUATION constraint equation and MPC if type TIE Coupled if type BEAM Rigid keywords constraint equations retain their original ID number Const
135. l information of ANSYS Inc and its subsidiaries and affiliates 51 System Usage in Workbench v A 2 model 2 e O Geometry P Finite Element Modeler Geometry FE Modeler system linked to Mechanical APDL system The Mechanical APDL Input Data is transferred to the Mechanical APDL system v 4 v B E FE Finite Element Modeler 1 N Mechanical APDL 2 B model lt 42 CE Analysis P 4 Finite Element Modeler Mechanical APDL You also link FE Modeler systems to various systems by linking through a Geometry or Mesh cell as seen below You can link FE Modeler system to a Mesh system through Geometry OR Mesh cells FE Modeler system to a Mechanical Model system through Engineering Data and Geometry or Model cells FE Modeler system to a Fluid Flow system through Geometry OR Mesh cells A v B v E FE Finite Element Modeler 1 Mechanical Model 2 Mode I EngineeringData v 4 Finite Element Modeler 3 Geometry Pa 4 Model 4 Mechanical Modal Linking FE Modeler Systems The example below describes this process using a Mechanical database though you can perform these FE Modeler tasks with a variety of other systems To import the Mechanical data to FE Modeler 1 In Workbench create or open a Mechanical database dsdb 2 Right click on the Model cell in the Mechanical system in the Project Schematic select Transfer Data to New then select Finite Element Modeler This will link the Mechanic
136. l rights reserved Contains proprietary and confidential information 108 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Graphics Edge Projection This example examines the steps to project an edge using the Transformation feature Using the same initial steps as those presented in the Face Projection example assume that you have 1 imported the mesh file and select millimeters as the unit 2 created an Initial Geometry 3 and created a Target Geometry Please refer to the Face Projection example as necessary to review these steps 1 Create a Transformation An Edge Projection transformation is applied a The Target Configuration object should be highlighted Open the Transformation drop down menu and select the Projection option b Select the edge shown below for this transformation Make sure that you have the edge selection tool picked in the toolbar Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 109 Geometry Synthesis c In the Details View for the Projection object click the Geometry field then click the Apply button 2 Add a Working Geometry This geometry provides a support edge for the projection a Highlight the Working Geometries object and click the New Working Geometry toolbar button A Working Geometry object is added to the tree The result is illustrated below
137. l rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 13 User Interface Import Summary Generate Data s Element Types 8 Bz Bodies 1 5j Dz exhaust_manifold a Linear Wedge Linear Hexahedron Spring UY Spring UZ Contacts 10 Materials 3 a Spring Properties 2 5 Components 42 E Constraints 3 MB Forces 1 Geometry Synthesis s Skin Detection Tool Gj Working Geometries A E Details view E Mesh Data Number of Mechanical Solid185 NASTRAN CPENTA ABAQUS N C3D6 Note For models based on Mechanical data each Part corresponds to one body For models based on NASTRAN ABAQUS or Mechanical APDL data one and only one body by default exists Please see Grouping Bodies p 14 below e For multiple imported mesh files the process described in the two previous notes is applied by file Colors in the graphics display differentiate the bodies Grouping Bodies When importing an archived file from NASTRAN ABAQUS or Mechanical APDL FE Modeler allows you to split a finite element model into multiple bodies based on the e Material assigned to an element Or Element type assigned to an element Or Shell Thickness Identifier assigned to an element Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidenti
138. lease 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 5 User Interface Button Menu Description Component button Please see the Components and Assemblies ee Component sactioh ion The Print Preview and Image Capture buttons are only available when you are viewing a model en tities elements types etc If elements faces or nodes are selected on the model these selection des ignations do not appear in either the print preview or on the captured image Element Selection Toolbar From the Selection Mode drop down menu choose from the following options TA Ut he Single Select mode Click selects the element under the A I cursor Hold the Ctrl key to add or remove individual ele Ty Single Select ments from the selection set Ly Box Select ER Box Volume Select For Elements Box Select mode selects a group of elements by clicking and dragging the cursor over a region of elements Box Se lect mode filters out interior and back facing elements Box Volume Select for Elements mode similar to Box Select mode except that all interior and back facing ele ments captured by the box are selected throughout the model When defining the box the direction from which you drag the mouse either left or right from the starting point determines what elements are selected For all of the selection
139. lick the New Working Geometry toolbar option 3 Under Importation in the Details View click in the Source field and then click the button that displays in the Source field Navigate to and open your geometry file from the Open dialog box Once imported you can show or hide any parts or bodies of the Working Geometry Hiding certain parts bodies may simplify the selection of the projection geometry for the Projection Transformations Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 72 of ANSYS Inc and its subsidiaries and affiliates Working Geometries Use Working Geometry as a Support for a Projection Once an external geometry is imported as a Working Geometry perform the following to use the geo metry in combination with a projection transformation 1 2 8 Highlight the Geometry Synthesis object and click the Initial Geometry toolbar option Highlight the Initial Geometry object in the tree and click the New Target Configuration toolbar option Apply a projection Transformation Highlight the appropriate Design Point object in the tree Click the Transformation drop down menu on the toolbar and select Projection Select the desired face edge or vertex on the model and click Apply in the Geometry field In the details click No Selection in the Projection Entities field This will display the entities from the imported Working Geometries Select the de
140. mmands from FE Modeler Note Only structural element types are supported FE Modeler Generic Representation Exported ABAQUS Element Type 2D 3 Node Triangular Planar 3 174 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates NASTRAN as the Target System FE Modeler Generic Representation Exported ABAQUS Element Type 4 Node Quadrilateral Planar 6 Node Triangular Planar S4 STRI65 8 Node Quadrilateral Planar S8R 3D 1 Node Mass MASS 2 Node Bar B31 C3D4 C3D6 3 Node Triangular Shell 3 4 Node Quadratic Shell S4 6 Node Triangular Shell STRI65 8 Node Quadratic Shell S8R Exported ABAQUS FE Entity Types have the following specifications FE Entity Type Exported Information Nodes Nodal coordinates Elements Element definition includes element connectivity Material Properties Material properties include Density may be temperature dependent Specific heat may be temperature dependent NASTRAN as the Target System Isotropic and orthotropic lamina and engineering constants elastic properties Isotropic elastic properties may be temperature dependent e Plastic strain based MISO plasticity No temperature dependencies are supported Isotropic thermal e
141. mport Specifications Mechanical Mechanical APDL Shape Category Mechanical APDL Ele ment Type FE Modeler Generic Representation 20 Node Pyramidal Structural Solid 20 Node Pentahedral Structural Solid SOLID186 SOLID186 13 Node Pyramidal Solid 15 Node Pentahedral Solid 20 Node Hexahedral Structural Solid SOLID186 or SOLSH190 p 170 2 p 170 20 Node Hexahedral Solid or 8 Node Hexahedral Solid 2 Node Thermal Beam LINK33 2 Node Bar 3 Node Thermal Beam LINK33 3 Node Bar 4 Node Triangular Thermal Shell SHELL131 3 Node Triangular Shell 4 Node Quadrilateral Thermal Shell SHELL131 4 Node Quadrilateral Shell 8 Node Triangular Thermal Shell 8 Node Quadrilateral Thermal Shell SHELL1327 p 170 SHELL132 p 170 6 Node Triangular Shell 8 Node Quadrilateral Shell 8 Node Tetrahedral Thermal Solid SOLID70 4 Node Tetrahedral Solid 8 Node Pyramidal Thermal Solid SOLID70 5 Node Pyramidal Solid 8 Node Pentahedral Thermal Solid SOLID70 6 Node Pentahedral Solid 8 Node Hexahedral Thermal Solid SOLID70 8 Node Hexahedral Solid 10 Node Tetrahedral Thermal Solid SOLID87 10 Node Tetrahedral Solid 20 Node Pyramidal Thermal Solid SOLID90 13 Node Pyramidal Solid 20 Node Pentahedral Thermal Sol id SOLID90 15 Node Pentahedral Solid 20 Node Hexahedral Thermal Solid SOLID90 20 Node Hexahedral
142. n Template Supported Targets Supported Data ElementType MeshNodes ANSYS ANSYS ABAQUS NASTRAN Element type definitions Node definitions including rotations MeshElements ANSYS ABAQUS NASTRAN Element definitions element type ma terial ID property ID element connectiv ity MaterialProperties ANSYS ABAQUS NASTRAN Material property definitions Components ANSYS Element Node and Face component definitions lInterfaceRegions ANSYS Definition of contact regions and contact properties Loads ANSYS Nodal forces and surface pressures BoundaryConditions ANSYS Specified displacement boundary condi tions PhysicalProperties ANSYS Real constant and Section definitions Note Not all entities imported into FE Modeler can be exported to all of the available systems Sample Templates The Mechanical APDL application as the target system lt WBTEMPLATE gt HEADING File created at TimeStamp This template extracts the FEModeler mesh in a format compatible with the Mechanical APDL application input 1 MeshNodes MeshElements ElelemntType 1 MaterialProperties 1 Components 1 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 177 Solver File Creation I
143. n or right click the mouse and select Insert gt Modal Simulation The Modal Simulation object is placed in the tree and the Details View displays any modal analysis specifications associated with the imported file Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 141 Modal Simulation Tool Modal Simulation General Number of Modes Frequency Range Frequency Range Mode Extraction Method Block Lanczos Mass Normalized True Equation Solver Sparse Direct Constraint Set Free Free Note If the input file does not contain modal analysis specifications you must set new specific ations for a modal analysis 3 Verify the contents of the following fields If necessary modify the values Number of Modes Frequency Range Mode Extraction Method 4 Select a Constraint Set for the modal analysis By default a Free Free configuration is defined and no constraints are written to the Mechanical APDL application input file Note The following conditions apply Only one constraint set can be used to generate the Mechanical APDL application input For Mechanical models only one constraint set other than Free Free is available For ABAQUS and NASTRAN files all constraint sets from the bulk data input are displayed in the Constraint Sets fi
144. n the Write Solver File button in the toolbar The following options are available from the Target System drop down list e The Mechanical APDL application ABAQUS e NASTRAN STL Template See the FE Modeler Options section for information on how to change the path to a target system template Mechanical APDL as the Target System When Mechanical APDL is used as the Target System the following entities if present are written out as Mechanical APDL commands from FE Modeler Note Only structural element types are supported FE Modeler Generic Representation Exported Mechanical APDL Element Type 1 Node Mass MASS21 3 Node Triangular Planar PLANE182 4 Node Quadrilateral Planar PLANE182 6 Node Triangular Planar PLANE183 8 Node Quadrilateral Planar PLANE183 8 Node Hexahedron SOLID185 8 Node Wedge SOLID185 8 Node Pyramid SOLID185 10 Node Tetrahedron SOLID187 20 Node Hexahedron SOLID186 20 Node Wedge SOLID186 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 173 Solver File Creation FE Modeler Generic Representation Exported Mechanical APDL Element Type 20 Node Pyramid SOLID186 4 Node Quadrilateral Shell SHELL181 4 Node Triangular Shell SHELL181 3 Node Beam BEAM188 8 Node Quadratic Quadrilateral Contact or 6 Node CONTA174 Quadratic Tria
145. nc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 85 Geometry Synthesis Details View Type Face Offset Drecion Cickto modi Suppressed ND d Select the Click to Modify option of the Direction field and change the direction by clicking the arrow in the graphic window Make sure that the direction is inward and then click Apply See the Trans formed Model illustration show below for the proper direction for the transformation 6 Generate the modification a Click the Generate the Design Point button Here is the initial configuration and the resulting transformation The part was reduced by 5 mm Initial Configuration Graphics Transformed Model Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 86 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Graphics 7 Next another Target Configuration is created to transform the connector plate a Highlight the Initial Configuration tree object and click the New Target Configuration button b The new configuration is added to the tree Click on the Transformation drop down menu and select the Face Offset option c Select the outer surface of the connector plate and then click the Apply button in Geometry field Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential in
146. ngular Contact 3 D Contact Target Segment TARGE170 8 Node Quadratic Quadrilateral Contact or 6 Node CONTA174 Quadratic Triangular Contact 8 Node Quadratic Quadrilateral Target or 6 Node TARGE170 Quadratic Triangular Target Exported Mechanical APDL FE Entity Types have the following specifications FE Entity Type Exported Information Nodes Nodal coordinates and rotation angles Elements Element definition includes element connectivity element type ID material ID real constant ID and element coordinate system ID Material Proper ties Isotropic and orthotropic elastic properties Plastic strain based MISO plasticity isotropis thermal coefficient of expansion density thermal conductivity and specific heat Physical Proper ties Real constants and or section data Interfaces Coordinate Sys tems Includes surface to surface contact pair definitions contact properties constraint equations and couples Any available local coordinate systems Components Node and Element components Face components in FE Modeler are converted to node components and sent over to the Mechanical APDL application Boundary Condi Constraints for structural degrees of freedom only Concentrated forces and Element pressures only ABAQUS as the Target System When ABAQUS is used as the Target System the following entities if present are written out as ABAQUS co
147. nt are ignored during geometry creation Skin Detection Tool Details An example of the SDT Details View content for the Algorithm Detection by angle is illustrated below Detals View 4 Definition Execution type Automatic Detection by angle Detection by anale Detection by curvatures Number of skin components Algorithm Parameters Tolerance Angle 15 Forbid close components No Treeview Display Display all SOT components No Number of SOT components 200 Once generated the Details View for the Skin Detection Tool provides the categorized information as described in the tables shown below The options of the Algorithm Parameters Category change based upon the selected Algorithm Definition Category Option Field Description Execution Type Automatic Skin detection is automatically performed using the specified or default Tolerance Angle when initial geometry is created Manual You manually perform skin detection or define face components Algorithm Detection by angle Detection by curvature Number of Skin Com Displays the current number of SDT Components ponents Algorithm Parameters Category If Algorithm is Detection by angle Option Field Description Tolerance Angle The SDT process computes the angle between the normals of two adjacent elements in the mesh If this angle is less than or equal to the Tolerance Angle Release 15 0 SAS IP Inc
148. ntains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 53 System Usage in Workbench Table 1 Transfer Data From New p 54 lists every possible link that can be made to an FE Modeler system using the Transfer Data From New context menu option as well as the expected behavior of each link Table 1 Transfer Data From New Workbench System Cell Link Behavior Electric Model Inserts upstream Electric system with a Transfer connection from the Model cell to the Model cell Electric Setup Inserts upstream Electric system with a Transfer connection from the Setup cell to the Model cell Explicit Dynamics Model Inserts upstream Explicit Dynamics system with a Transfer connection from the Model cell to the Model cell Explicit Dynamics Setup Inserts upstream Explicit Dynamics system with a Transfer connection from the Setup cell to the Model cell Explicit Dynamics LS DYNA EXPORT Model Inserts upstream Explicit Dynamics LS DYNA EXPORT system with a Transfer connection from the Model cell to the Model cell Explicit Dynamics LS DYNA EXPORT Setup Inserts upstream Explicit Dynamics LS DYNA EXPORT system with a Transfer connection from the Setup cell to the Model cell Finite Element Modeler Inserts upstream Finite Element Modeler system with a Transfer connec tion from the Model cell to the Model cell Fluid Flow Blow Molding Poly
149. nterfaceRegions Loads BoundaryConditions PhysicalProperties NASTRAN as the target system lt WBTEMPLATE TARGET NASTRAN gt File created at TimeStamp This template extracts the FEModeler mesh in a format compatible with NASTRAN input BEGIN BULK MATERIAL PROPERTIES MaterialProperties MESH NODES MeshNodes MESH ELEMENTS MeshElements ENDDATA ABAQUS as the target system lt WBTEMPLATE TARGET ABAQUS gt HEADING xx File created at TimeStamp k k This template extracts the FEModeler mesh in a format compatible with ABAQUS input xk MeshNodes Kk MeshElements Kk MaterialProperties Kk Sample templates are provided to perform a large deflection analysis using the Mechanical APDL applic ation NASTRAN or ABAQUS Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 178 of ANSYS Inc and its subsidiaries and affiliates Index A ABAQUS supported keyword specifications 158 ABAQUS Contact Keywords 164 ABAQUS Element Keywords 160 ABAQUS element types types supported 165 ABAQUS General Keywords 158 ABAQUS Input linking to 37 39 ABAQUS Loads Boundary Conditions Keywords 163 ABAQUS Material Keywords 161 ABAQUS Node Keywords 160 ABAQUS Properties Keywords 162 assemblies 61 creating 61 bar properties shapes supported 23 beam prope
150. o require conversion In addition it is likely that your Mechanical APDL input decks may not be formatted properly The following procedures describe the steps you will need to take to convert your existing files into the required cdb format Create a cdb file from any Mechanical APDL input deck or db file 1 Open the file in the Mechanical APDL application 2 Based on your file type either a Read an input deck by selecting File gt Read Input From Or b Resume a db file by selecting File gt Resume From 3 Select Preprocessor gt Archive Model gt Write from the Mechanical APDL Main Menu 4 In the dialog choose DB All finite element information from the Data to Archive drop down menu 5 Select the Archive File Name button and then specify the folder location and filename for the cdb file Create a cdb file from a FE Modeler system 1 Open your project in Workbench containing the FE Modeler System 2 In the Project Schematic create a the Mechanical APDL system and link the FE Modeler cell to the Mechanical APDL Analysis cell Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 147 Import Specifications 3 Update the FE Modeler system right click on the Mechanical APDL system Analysis cell and choose Edit in Mechanical APDL This opens the Mechanical APDL application user interface 4 Select Preprocessor gt
151. ojection 7 Parameterized Configuration Details View Importation Source Definition b Click the button in the Source field To complete this transformation open the separately imported geometry located at Ansys Inc v150 AISOL Samples FEModeler Support_Geo metry igs c Click the Generate button The new working geometry displays as follows Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 105 Geometry Synthesis Graphics 6 Define the support face on the Working Geometry a Highlight the Projection object b Click in the Projection Entities field q Gemy ree SCS Definition Projection Entities Method Select the Geometry Suppressed NO c Select the face shown below and then click Apply Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 106 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Graphics d The projection is defined as illustrated below Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 107 Geometry Synthesis 7 Generate the projection a Click the Generate the Design Point button in the toolbar The projection is created Release 15 0 SAS IP Inc Al
152. olver target of Mechanical APDL is supported Any other load or any other combination of physics type analysis type and solver target is not supported Mechanical Load Type Loads Supported in FE Modeler Fixed Supports Fixed Edge Fixed Surface Fixed Vertex Simply Supported Edge Simply Supported Vertex Force On Surface On Vertex Pressure On Edge On Surface Specified Displacements On Edge On Surface On Vertex Supported Mechanical Connections Surface to surface contact and spot welds are the only connections from the Mechanical application that are supported by FE Modeler Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 171 172 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates FE Modeler Solver File Creation The Write Solver File button can be used in conjunction with the Target System field in the toolbar to write out FE Modeler data to solver input files through the use of Templates Templates are provided to allow you to easily generate a customized Mechanical APDL ABAQUS STL or NASTRAN input deck There is also an option to create a custom Template To write a solver file select Generate Data in the Tree Outline select the Target System template that you want to use and click o
153. ometry within Workbench ssssssssssessssssssssssessssressssreessssresssssressseresssereessseresssseeesssres 80 Transformation Examples iaicscs coseccvesc couse edoi eiin o EE a E EE EAE E E EE i Ra E 81 Face Offset ccsavevectetece creas E aE E Eaa OEE EOE 82 Nonlinear ROtat OM ies ecccccaswctsavaties ecccdsced EE E E E AEE E a E e 90 FACE PrOJECUO nsss an a tian Aes aaa A a a a A a e T aa at e E S aaa A 101 Edge PROJECEON as reer seerne eetere eae Daae eair eiere ae ieie Aaa e iioa sit 109 Parasolid Geometry Creation 32 jcsfsoiiresceiancenss dalam oage ata deere eduaaniies 119 Creating Parasolid Geometries in FE Modeler eeseescccesserceeeessncceseeseeseecesseneeseessneeeseeseaseesesseneeees 119 Using the SQW OOM kts c es cscecneadueea tact e aa REE E E te elwen E the eceesensaadedansedaedeasdanceshonteetea aaa 120 Exporta Parasolid File mre ssscciscces aecauatecsazecessaeottvedesecdeotecg dere E saea E cde decaudvvecee thazaes a Eaa 122 Mesh Metrics Tool irnn eia i ihbessetiviag clean ceeeesdwad EE EEEE ARAE EEEE EE ae 125 Shape Testihg ie ah aeae eai sT aiea EET a EE ARENAL AEEA V O A TETE 127 3 D Solid Element Faces and Cross Sections cc scccccccecsssesssneceeecceseeessnneceeeeeceseesnnaeeeeeseeseeeeeea 127 Aspect Ratio Calculation for Triangles sic sccsvavincpanvieesiacerslehns sadanavetdceas accion hiner aaasavaien 130 Aspect Ratio Calculation for Quadrilateral cccssscccccceeessessnneceecceceseeessnseeeeeeceses
154. omponent creation you need to consider the Details associated with the new SDT Components specifically the number of the faces that are created based on the tolerance angle If this number is too high you may want to clear the components modify the Tolerance Angle and create new components It is also important to note that you can simply generate an Initial Geometry without first creating SDT Components they are automatically created during that process However doing so does not allow you to examine and or modify the Details associated with the newly created faces Face Components Any face components defined in FE Modeler are also considered when defining an exterior face For example you may need to apply a pressure load over a small area of a larger surface You can create a face component that includes the element faces over which the pressure is applied as detailed in the Creating Components and Assemblies section The geometry creation algorithm then creates a face from this component Shell elements and faces of solid elements that are defined by the nodes of the face component will be removed from the SDT skin when it is generated If you remove a face component from the Components item in the tree the shell elements and faces of solid elements that are defined by the face component will be added to the SDT skin when it is generated Node Components The user will be able to retrieve the areas on the geometry where node compon
155. on of ANSYS Inc and its subsidiaries and affiliates 153 Import Specifications Supported General Specifications EIGR The number of modes to extract and the minimum maximum frequency range is processed EIGRL The number of modes to extract and the minimum maximum frequency range is processed GRDSET GRID Rotated nodes are grouped into a component during import INCLUDE 1 level only no nesting MPC PARAM The only parameter name supported is WTMASS The value of this parameter is multiplied by all items associated with the mass such as material density Supported Coordinate System Specifications CORD1C CORD1R CORD1S CORD2C CORD2R CORD2S Supported Element Specifications CBAR No pin releases All affected elements are grouped in a component during import Any orientation vectors specified will be used to define the orientation node defined with the other nodes of an element CBEAM No pin releases All affected elements are grouped in a component during import Any orientation vectors specified will be used to define the orientation node defined with the other nodes of an element CBUSH 2 grid option only supported Element coordinate system must be specified Property id element coordinate system and 2 grid points only processed CELAS1 C1 C2 is assumed Element will be ignored if C1 is 0 CELAS2 C1 C2 is assumed Stress coefficient is ignored CHEXA CONM1 Connectivity inform
156. on from the Setup cell to the Model cell Mechanical APDL Inserts upstream Mechanical APDL system with a Transfer connection from the Analysis cell to the Model cell Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 54 of ANSYS Inc and its subsidiaries and affiliates Link FE Modeler to Other Workbench Systems Mechanical Model Inserts upstream Mechanical Model system with a Transfer connection from the Model cell to the Model cell Mesh Modal Model Inserts upstream Mesh system with Transfer connection from the Mesh cell to the Model cell Inserts upstream Modal system with a Transfer connection from the Model cell to the Model cell Modal Setup Inserts upstream Modal system with a Transfer connection from the Setup cell to the Model cell Modal Samcef Model Inserts upstream Modal Samcef system with a Transfer connection from the Model cell to the Model cell Modal Samcef Setup Inserts upstream Modal Samcef system with a Transfer connection from the Setup cell to the Model cell Random Vibration Model Inserts upstream Random Vibration system with a Transfer connection from the Model cell to the Model cell Random Vibration Setup Inserts upstream Random Vibration system with a Transfer connection from the Setup cell to the Model cell Response Spectrum Model Response Spectrum Setup Inserts upstream
157. ons You can control the behavior of certain functions in FE Modeler through the Options dialog box To access FE Modeler options 1 From the main menu choose Tools gt Options The Options dialog box shown below appears 2 Select the plus symbol beside FE Modeler to expand the option 3 Highlight Miscellaneous to display the available FE Modeler options 4 Change any of the option settings by clicking directly in the option field on the right 5 Click OK Note Option settings within a particular language are independent of option settings in another language If you change any options from their default settings then start a new Workbench session in a different language the changes you made in the original language session are not reflected in the new session You are advised to make the same option changes in the new language session The following FE Modeler options appear in the Options dialog box Miscellaneous You can disable the option that changes the ID s of all of nodes and elements that are sent to the target system from FE Modeler by selecting Tools gt Options gt FE Modeler gt Miscellaneous and changing Compress Numbers Sent To the Mechanical APDL application from Yes to No See the Export Specifications section for more information Note It is highly recommended that you maintain the default setting to avoid sending large numbers to the Mechanical APDL application Templates You can
158. ons Cards 155 NASTRAN Material Cards 156 NASTRAN Property Cards 157 NASTRAN Specialty Elements 157 node components 62 nonlinear rotation example 90 O options 145 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 179 Index overview 1 P parameterize geometry object 80 S select view type 9 shape testing 127 3 D solid element faces and cross sections 127 aspect ratio calculation for quadrilaterals 127 aspect ratio calculation for triangles 127 jacobian ratio 127 maximum corner angle 127 parallel deviation calculation 127 quality factor 127 warping factor 127 summary report import 37 39 review 37 39 T target configuration create 76 design points 76 target system 173 toolbar display 6 element selection 6 geometry synthesis 7 standard 5 transformations apply 76 nonlinear 76 types 76 U user interface 3 display toolbar 6 element selection toolbar 6 geometry synthesis toolbar 7 standard toolbar 5 using fem geometry in workbench 80 V view type bar properties 23 beam properties 21 bodies 13 components 29 composites 28 constraint equations 30 constraints 31 contacts 16 coordinate type 11 curved pipe 34 element type 12 forces 32 generated data 11 geometry synthesis 34 import summary 10 mass properties 26 material property
159. ontains proprietary and confidential information 82 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Project Import Summary Generate Data a Element Types 2 Hz Bodies 1 H D Materials 1 H Components 3 Geometry Synthesis yd Skin detection tool Definition Execution type Tolerance Angle c Click the Create skin components button on the toolbar to update the value The result is illustrated here Graphics ais Project Import Summary Generate Data H Element Types 2 Bz Bodies 1 gt Materials 1 H E Components 3 Geometry Synthesis E A Skin detection tool Details View Definition Execution type Tolerance Angle Forbid close c Number of ski Treeview Display Display alSD No Number of SD 200 3 Create an Initial Geometry a Select the Geometry Synthesis object in the Outline and click the Initial Geometry button or right click the mouse and select Insert gt Initial Geometry Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 83 Geometry Synthesis Once your initial geometry is created you can create a Target Configuration and apply Trans formations to the part For this example the dimension of a connector is modified slightly 4 Create Target Configuration a Highlight the Initial Geometry object and cl
160. ort Caution for more information Body grouping is done on a per file basis Only items from the file for which the body grouping was specified will be included in the body that is created Contacts View The purpose of the Contacts view is to provide A listing and visualization of contact regions defined in the FE model A listing of contact element types present in a given set of contact regions along with corresponding element counts An element selection filtered by one or more contact regions An element selection filtered by one or more contact element types within a set of contact regions Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 16 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types Outline BIB contacts 10 EB BTOF_F15_B1S EG Linear Quadrilateral Contact BE Linear Quadrilateral Target BIB BTOF_F25_b25 BIB BTOF_F35_635 BIB BTOF_F45_B45 BIB BTOF_F55_B55 BIB BTOF_F65_B65 BE BTOF_F7S_B75 BIB FTOH_FLIS_HS BE FTOH_FL2S_HS BIB FTOH_FL3S_HS oe A EE Be A a Details View Mesh Data Number of Elements 13 Description ABAQUS Name Note Contacts correspond to Element Types 170 173 174 and 175 combinations in the Mechanical APDL archive file Contacts correspond to contact region objects under Conne
161. ort summary a Generate Date Coordinate Systems 18 Coardinste Systems 106 Coordinate Systems 107 Coordinate Systems 193 Coordinate Systems 207 Coordinate Systems 208 Coordinate Systems 209 Coordinate Systems 290 Coordinate Systems 291 Coordinate Systems 292 Coordinate Systems 293 Coordinate Systems 294 Coordinate Systems 295 Coordinate Syshems 296 Coordinate Systems 297 Coordinate Systems 299 Coordinate Systems 300 Coordinate Systems 301 Coordinate Syshems 302 lt Element Types 9 DS Bodies 1 a a ae X oe R a a a a A a XR a a R a 2K Definition Type Cartesian Origin Origin X 0 Origin Y 1306 Origin 2 Directional Vectors X Aus Data Y Axis Data Z Axis Ota Note Displayed only if coordinate systems are present in the model For coordinate systems from A Mechanical APDL archived file LOCAL command coordinate systems for a single mesh import or for the first mesh to be imported retain their original ID numbers NASTRAN CORD1C CORD1R CORD1S CORD2C CORD2R and CORD2s cards coordinate sys tems for a single mesh import or for the first mesh to be imported retain their original ID numbers ABAQUS SYSTEM and ORIENTATION keywords coordinate systems for a single mesh import or for the first mesh to be imported retain their original ID numbers Element Types View The purpose of the Element Types view is to provide A listing of the element types pres
162. oss sectional radius Wall thickness PSHEAR No effectiveness factors for extensional stiffness PSHELL Only MID1 and T are read PSOLID No material coordinate system integration network integration scheme or stress data is read Note Rod Bar Beam properties are displayed in the GUI and used when exporting to the Mechan ical APDL application If the NASTRAN model contains PBEAM tapered beams when exporting to the Mechanical APDL application the tapered properties are defined as a constant cross section with the properties being averaged from the first and last cross section to represent the taper Also for both PBEAM and PBEAML tapered beams the intermediate cross sections properties are ignored Supported Specialty Elements RBE1 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 157 Import Specifications RBE2 RBE3 RBAR Processed as a RBE2 card always using the component numbers 123456 RROD Processed as a RBE2 card always using the component numbers 123 ABAQUS Keyword Specifications This section presents FE Modeler support for the following ABAQUS items Supported General Keywords Supported Node Keywords Supported Element Keywords Supported Materials Keywords Supported Properties Keywords Supported Loads Boundary Conditions Keywords Supported Contact Keywords ABAQUS Element Types
163. prings in DesignModeler Springs can be added in the Mechanical application The vertices at the ends of springs are added in the geometry to be sent to the Mechanical application and create a node on these vertices after re meshing Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 67 Geometry Synthesis Remote points Remote Points are not shown as a geometry but all the slave nodes are located in the geometry The area of slave nodes may be A vertex if all neighbor nodes are not affected by the remote point An edge or a part of an edge if neighbor nodes are affected by the mesh edge A surface if the nodes affected by the remote point use all the nodes of the elements Skin Detection Tool Once a file is opened in FE Modeler the first step to create an Initial Geometry is to identify the exterior faces Exterior faces are defined by the components that contain the surfaces of the elements for brick or tetrahedron meshes and the elements themselves for a shell mesh This can be accomplished by creating face components see Creating Components and Assemblies or by using the automated Skin Detection Tool In addition you can define surfaces from a selection of element faces The Skin Detection Tool SDT groups exterior element faces into SDT Components The number of faces generated is based on the Tolerance Angle valu
164. r The ANSYS Mesh Morpher feature requires an independent license see FE Modeler Licensing Defining a Transformation The Mesh Morpher is a tool that employs the Target Configuration feature and the application of transformations to an Initial Geometry Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 76 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Target Configuration Once an Initial Geometry is created you can create parameters that represent various transformations of this geometry and the associated mesh using the Target Configuration feature At first the Target Configuration is simply a copy of the initial geometry You can then apply transformations such as a face offset to this Target Configuration and change the geometry Each Target Configuration is always linked to a parameter and as a result any changes to the Target Configuration assign a change to the associated parameter You can create multiple target configurations with each having an associated parameter These para meters can then be changed to modify the geometry The net effect of the change to the various target configurations is reflected in a special object in the tree called Parameterized Configuration For example you could have two target configurations in your model one target configuration that performs a face offset of 10 and another target configuration that performs an
165. r can be obtained using the Download Wizard from the ANSYS Customer Portal Download the file ANSYS_St ructural_Mechanics_Tu torial_Inputs zip which will contain the input files in the FE_Modeler folder Face Offset Nonlinear Rotation Face Projection Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 81 Geometry Synthesis Edge Projection Face Offset During this example an FE mesh is imported into FE Modeler an Initial Geometry is created and it is then transformed using the ANSYS Mesh Morpher feature This example below describes the steps to create two independent transformations of a crankshaft geometry each with its own linked parameter 1 In the Workbench Project Schematic create a new FE Modeler system and import the Mesh located at Ansys Inc v150 AISOL Samples FEModeler crankshaft cdb For more information on importing a Mesh see Open or Create an FE Modeler System p 40 a When FE Modeler opens select the Geometry Synthesis object in the tree Graphics 2 Before initiating any transformations you may need to increase the Tolerance Angle of the skin com ponents a Highlight the Skin Detection Tool object b Enter the desired Tolerance Angle in the Details View For the purposes of this example a value of 45 has been entered Release 15 0 SAS IP Inc All rights reserved C
166. r element type MASS21 only The properties are processed per Keyopt 3 as follows Keyopt 3 0 MASSX lyy lyy Izz the mass in the y and z directions are ignored Keyopt 3 2 MASS Keyopt 3 3 MASS lzz Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 152 of ANSYS Inc and its subsidiaries and affiliates NASTRAN Bulk Data Processing Specifications Keyopt 3 4 MASS Rod Properties The cross sectional area is processed for the following element types LINK33 LINK34 LINK68 LINK160 LINK167 LINK180 added mass is processed Beam Properties Supported Properties Cross Torsion Section al Mo Section al Area ment 1 Only if section data is specified Spring Properties Spring Damper properties are processed for LINK11 COMBIN14 and COMBIN37 The following properties are supported Spring constant Damping coefficient NASTRAN Bulk Data Processing Specifications This section presents FE Modeler support for the following NASTRAN items Supported General Specifications Supported Coordinate System Specifications Supported Element Specifications Supported Loads Boundary Conditions Specifications Supported Material Specifications Supported Property Specifications Supported Specialty Elements Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential informati
167. raints View The purpose of the Constraints view is to provide Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 31 User Interface A listing of the constraints present in the model and the direction of the displacement either UX UY UZ ROTX ROTY or ROTZ e A visualization of constraints in the model Outline Element Types 17 Bodies 1 Materials 18 Thicknesses 21 Rod Properties 13 Beam Properties 30 Bar Properties 21 Mass Properties 15 Spring Properties 26 Components 2 Constraints 3 NeoPC lt SET 0 D0F5 456 Y4LUE 0 gt SSB SPC lt SET 0 DOFS 12345 VALUE 0 gt MMM SPC lt SET 0 DOF5 123456 VALUE 0 gt el A Geometry Synthesis zs Skin detection tool TE AA APBN Details view E Constraint Directions Forces View The purpose of the Force view is to provide A listing of the loads present in the model and the direction of the force either Force X Force Y Force Z Moment X Moment Y or Moment Z e A visualization of forces in the model Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 32 of ANSYS Inc and its subsidiaries and affiliates Tree Outline View Types Outline E Project Import Summary Generate Data Element Types 3 Bodies 1 Contacts 10 Materials 3 Spring P
168. re 11 Aspect Ratios for Quadrilaterals Cee 1 20 Parallel Deviation Calculation Parallel deviation is computed using the following steps 1 Ignoring midside nodes unit vectors are constructed in 3 D space along each element edge adjusted for consistent direction as demonstrated in Figure 12 Parallel Deviation Unit Vectors p 133 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 132 of ANSYS Inc and its subsidiaries and affiliates Shape Testing Figure 12 Parallel Deviation Unit Vectors 2 For each pair of opposite edges the dot product of the unit vectors is computed then the angle in degrees whose cosine is that dot product The parallel deviation is the larger of these 2 angles In the illustration above the dot product of the 2 horizontal unit vectors is 1 and acos 1 0 The dot product of the 2 vertical vectors is 0 342 and acos 0 342 70 Therefore this element s parallel deviation is 70 3 The best possible deviation for a flat rectangle is 0 Figure Figure 13 Parallel Deviations for Quadrilater als p 133 shows quadrilaterals having deviations of 0 70 100 150 and 170 Figure 13 Parallel Deviations for Quadrilaterals A ZS 0 70 100 ee n 150 170 Maximum Corner Angle Maximum corner angle is computed and tested for all except Emag or FLOTRAN elem
169. reate an Initial Geometry in FE Modeler a Select the Geometry Synthesis object in the Outline and click the Initial Geometry button or right click the mouse and select Insert gt Initial Geometry The model is generated as shown below Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 93 Geometry Synthesis Graphics 6 Create the Target Configuration a Highlight the Initial Geometry object and click the New Target Configuration button A Target Configuration object is added to the tree under Initial Geometry A parameter is automatically created and linked to this target configuration There is only one Design Point For this example multiple design points are added to the configuration For this type of configuration only one parameter is linked to the configuration as shown on the Details View Details View Definition Associated Parameter Mesh Morpher 1 Design Points 1 7 Perform the transformation a rotation of 30 degrees a Select the Target Configuration tree object b Click the Transformation drop down menu and select Rotation c Select the surface and click the Apply button in the Geometry field of the Details View A Rotation transformation is applied to the surface Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 94 of ANSYS Inc
170. red Element Types Coordinate Systems e Materials e Thicknesses Layered Composites Rod Properties e Bar Properties e Beam Properties Curved Pipe Properties e Mass Properties Spring Properties Components e Contacts e Spot Welds Constraint Equations e Constraints e Forces e Pressures Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 45 System Usage in Workbench When importing multiple meshes there is a possibility for entity ID numbering overlap between the various mesh files which is unacceptable because all ID numbers must be unique You have the option to either import the meshes with no action taken for the ID numbering or to allow the nodes and ele ments to be renumbered automatically on import If you chose Automatic Numbering for the ID Handling property of an imported mesh file FE Modeler will ensure that for nodes and elements the ID numbering within the FE Modeler system is unique If entities cross reference any changes in the ID numbering will be handled correctly in the cross references If you choose No Action for the ID Handling property you must guarantee that there are no conflicting node or element IDs in the files that you are importing If a duplicate ID is identified the file import will fail FE Modeler will close and an error will be reported in the Workbench Mess
171. revious View Displays the previous view in the Graphics window Next View Displays the next view in the Graphics window Set ISO Displays an isometric view in the Graphics window 23 2 2 el 2 2 Element Outlines On Off These buttons toggle the element outline view on and off In addition to toolbar options you may also right click the mouse to quickly display view options Within the Cursor Mode menu you will receive Rotate Pan Zoom and Box Zoom ISO Set and Restore and Fit These options are also available when using the Magnifier Window feature Geometry Synthesis Toolbar Geometry Synthesis employs the following toolbar options Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates User Interface Button Menu Tool Tip Name Displayed Description Initial Geometry Generates a geometry from an FE model This option also auto matically creates the Skin Detec tion Tool SDT components on the FE Model Create skin components Creates the Skin Detection Tool SDT components on the FE Model The number of faces Ep Create skin components generated is based on the Toler ance Angle value contained in the Skin Detection Tool Details Clear skin components Clears existing skin components 7 This operation is also carried out Eear skin components automatically befor
172. rimary nodes are used in the creation of faces lines and vertices on the geometry e If you attempt to create a node component across parts it may be difficult to select the super imposed nodes at the boundary of the parts If using the paint select mode you can run the cursor back and forth over the boundary to try to pick up all the nodes Or you can display individual parts of the mesh and create a separate node component for each part e Vertices do not display on the geometry but can be seen if you select the Select Nodes tool set the cursor mode to Box Select and box select the entire geometry Create Components When one or more elements nodes or faces have been selected click the Component button in the toolbar or right click the mouse and choose Add Component A dialog box displays that provides a text field in which you may name a component The newly created element component face component or nodal component displays in the Components view The generated Mechanical APDL input deck includes all defined components for use in working with the data in subsequent analyses Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 62 of ANSYS Inc and its subsidiaries and affiliates Creating Components and Assemblies Create Assembly To create an assembly 1 Select at least two components or assemblies in the Components view 2 Right click the mouse and select Crea
173. rmation on importing a Mesh see Open or Create an FE Modeler System p 40 a When FE Modeler opens select the Geometry Synthesis object in the tree The mesh displays as follows Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 101 Geometry Synthesis Graphics 2 Create an Initial Geometry a Select the Geometry Synthesis object in the Outline and click the Initial Geometry button or right click the mouse and select Insert gt Initial Geometry Once your initial geometry is created you can create a Target Configuration and apply Trans formations to the part Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 102 of ANSYS Inc and its subsidiaries and affiliates ANSYS Mesh Morpher Graphics 3 Create Target Configuration a Highlight the Initial Geometry object and click the New Target Configuration toolbar button A Target Configuration object is added to the tree under Initial Geometry Project Import Summary Generate Data Element Types 1 AZ Bodies 1 i Bg Components 1 Q Modal Simulation a Geometry Synthesis yi Skin Detection Tool lf Working Geometries See Initial Geometry A Geometry Target Configuration E 7 Gi Design Point Ess 7 H Parameterized Configuration Details view F Definition Associated Paramet
174. roperties 2 Components 42 E Constraints 3 E Forces 1 ESSA H g g a ay eee Pressures View The purpose of the Pressures view is to provide A listing of the pressures present in the model and the value of the pressure load A visualization of pressures in the model Outline E Project Import Summary Generate Data Element Types 2 Bodies 1 Materials 2 Thicknesses 1 Bar Properties 2 Constraints 2 Pressures 1 NEPRESSURE lt SET 2 ID 1 gt A S Geometry Synthesis gy Skin detection tool Details View E General Yalue 2 e 002 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 33 User Interface Curved Pipe Properties View The purpose of the Curved Pipe Properties view is to provide A listing of curved pipe properties e g outer diameter thickness and radius of curvature A grouping of curved pipes with identical properties e A visualization of curved pipe elements within a model Filters element selection for specified set of curved pipe elements only e Differentiates curved pipe elements with different properties by color Outline we A urved Pipe Properties 1055 110002 110003 1110004 7110005 1110006 110007 1110008 110009 1110010 1110011 1110012 1110013 1110014 1110015 g al we an
175. rs by editing the Parameter Set bar in the Project Schematic and Update the FE Modeler Model cell This updates the Parameterized Configuration to reflect the new parameter values and also modifies the Parameterized Mesh to match the updated geometry Note The typical range for parameter values is between zero and the value that is displayed in the Details of the Design Point The Geometry Synthesis process accepts values outside of this range but is not recommended to extend the transformations beyond the specified range Parameterized Mesh You create a morphed mesh using the Parameterized Mesh feature Executing the feature places a Parameterized Mesh object in the Outline tree It is a one time operation applied to the state of a target configuration s Once performed any parameter update automatically updates the values moves the nodes of the Parameterized Mesh to match the Parameterized Configuration However changing Design Point transformation values requires you to manually update the Parameterized Mesh to reflect the transform ation change Create Morphed Mesh 1 Select the Parameterized Configuration object 2 Click the Parameterized Mesh button on the toolbar or right click the mouse and select Parameterized Mesh To update a modified Parameterized Mesh click the Mesh Update button Using FEM Geometry within Workbench This section describes the how you can use an FE Modeler generated geometry in other Workbench
176. rties shapes supported 21 C change export target system 145 change IDs 145 components 61 creating 61 components add 6 context menu 6 create components and assemblies 62 custom unit system for materials 17 D data processing specifications for Mechanical 168 data source choosing 37 39 database 37 39 E element selection 6 export ABAQUS as target system 174 export Mechanical APDL as target system 173 export NASTRAN as target system 175 export specifications 173 export templates 176 export via templates 173 F face offset example 82 file 148 filtering 6 G generate data 173 geometry synthesis 65 initial geometry 74 l image capture 6 import specifications cdb file conversion 147 import 147 initial geometry create 74 interface tools 6 M Mechanical APDL archive cdb file conversion 147 Mechanical APDL archived file command specifications 148 Mechanical Connections Supported 168 Mechanical Elements Supported 2 D 168 Mechanical Elements Supported 3 D 168 Mechanical Loads Supported 168 mesh diagnostics mesh errors 75 mesh metrics 125 mesh morpher 76 mesh morpher quality 79 modal simulation file requirements 141 perform analysis 141 modal simulation FE Modeler 141 N NASTRAN data specifications 153 linking to 37 39 NASTRAN Coordinate System Cards 154 NASTRAN Element Cards 154 NASTRAN General Cards 154 NASTRAN Loads Boundary Conditi
177. ry with 1D elements you must update your initial geometry Everything that existed below the Initial Geometry will be lost for example Target Configuration Transformations Parasolid Geometry etc when you update it Mesh Import Limitations Polyhedral elements are not supported in Mesh Import Attempting to load Polyhedral elements or other invalid meshes will result in an Invalid Mesh error message Managing Meshes After you are finished adding meshes to your system you can view the collection of meshes and make any necessary changes before you open the FE Modeler Editor and import the meshes After you have added your meshes you can 42 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates Open or Create an FE Modeler System change the order in which the meshes are shown in the outline e change properties of the meshes delete meshes from the collection To see the list of meshes you have added right click on the Model cell and select Manage Input Meshes The Outline view shows the meshes you have added under the Assembly Mesh item in the Outline The Outline view allows you to manage your mesh collection Caution Making any changes to the mesh collection in the Outline will prompt you to destroy all work done to the file s in FE Modeler in order to import the mesh es with the new settings This includ
178. s Mesh Geometry Named Selections and Thicknesses Materials and Thicknesses are transferred when the properties are consistent throughout the geometry For example if some elements belonging to the same face have different thicknesses a thickness property can t be assigned to the face Named Selections are created from Element Face Components Node Components that contain all of the primary nodes in one or more element faces and therefore can define a face Caution Consider the following behavior when creating Named Selections from Components Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 50 of ANSYS Inc and its subsidiaries and affiliates Link FE Modeler to Other Workbench Systems If you create a Component across bodies that contains faces of 2D and 3D elements the Component generates 2 faces on the geometry one from the 2D element faces and one from the 3D element faces When a component of this type is transferred to a Mechanical model two Named Selections will be created one for each face They will be named auto matically using the Component name and a numerical postfix Components across bodies that have the same dimension 2D or 3D will generate only one Named Selection If during the generation of the geometry FE Modeler splits a complex face of a Component into multiple faces a single Named Selection containing the multiple faces will be cr
179. s density Thermal expansion coefficients Reference temperature for thermal expansion if thermal expansion is defined MAT9 6 X 6 symmetric material property matrix Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 156 of ANSYS Inc and its subsidiaries and affiliates NASTRAN Bulk Data Processing Specifications Note The stiffness terms must be positive definite requiring all determinants to be positive Otherwise the properties will not be imported Mass density is supported MAT10 No data is supported The material id only is maintained Supported Property Specifications PBAR No stress recovery coefficients and area factors for shear PBARL The following cross section shapes are supported ROD TUBE CHAN BOX BAR 11 CHAN 1 Z T T2 BOX1 HAT PBEAM No stress data recovery data shear stiffness factors warping coefficients coordinates of center of gravity for nonstructural mass and coordinates of the neutral axis PBEAML The following cross section shapes are supported ROD TUBE L CHAN BOX BAR 11 CHAN1 Z T T2 BOX1 HAT PBUSH Stiffness K and structural damping GE is supported PCOMP No failure theory reference temperature and damping coefficient PELAS No stress coefficient PROD PBEND Only the curved pipe option is supported along with the following items Material identification number Mean cr
180. s describe the FE Modeler features that allow you to create a geometry from an imported finite element mesh transform that model and parameterize the geometry Geometry Synthesis Parameters Using 1D Geometry in FE Modeler Skin Detection Tool Working Geometries Initial Geometry Mesh Diagnostics ANSYS Mesh Morpher Geometry Synthesis Parameters When Geometry Synthesis is selected in the Tree Outline Geometry Synthesis Parameters can be con figured in the Synthesis Parameters area in the Details view These parameters determine how the Initial geometry is created from mesh data imported in FE Modeler The table below describes the information displayed and optional parameters available in the Geometry Synthesis Details view Table 3 Geometry Synthesis Details View Definition Mesh Morpher The Mesh Morpher Database indicates the file path to the rsx file This field will automatically display Not yet set the first time you open an imported mesh in a new system in FE Modeler but as soon as you close the FE Modeler editor at least once and then re open it you will get a valid database file path Mesh Displays the file location of the mesh file loaded in FE Modeler Initial Geometry The Initial Geometries field indicates how many Initial Geometry objects you have in the current model Currently this field will only display O or 1 Synthesis Parameters Vertex Insertion Angle Input a value to determ
181. sereessereessssreessse 44 Scaling the Imported Meshes sssessssssesssssesssssessssseessssressssstesssstesssereessseressssseesssetesssereesseseesssereesso 44 Entity 1D NUMBERING aa a aE aE EEA NAE E E A LE R RE A 45 Link FE Modeler to Other Workbench Systems cssccccsesserseesessceeseesenceesesseseessesseseesecseeeessesseseesense 46 FE Modeler Connections to Other Analysis Systems ceessssccceessseeeeeesseeeceessaeeeeessaeeeeessaaeeeeees 47 FE Modeler as a Downstream System j ccssstsvesdacsuaeiansidaursacgunanadivnsasneiesnyanbivenseuigseovesaivessacenbanses 47 FE Modeler as an Upstream System ss essssseesssseesssssessssseessssressssreesssseesssereessseresssereesseseessssreesseee 49 Einking FE Modeler Systems isunei arinean aA ai ieie iee teniron iaid eiie 52 Linking Behavior with FE Modeler ssssssessessesssssessssssessssreesssrressseressssreessssreesasetessseresssereesssereesssees 53 Components and Assemblies oooooneeesseeseeeeeesessssssrereressssssrereeesssssseereressssssssreeeeessssssstreeesssssseerreeees 61 Creating Components and Assemblies ssssssseesssssessssseessssressssseessssteesssetessseresssssresssseesssetesssereesssseess 62 Geometry Synthesis erie E ches E E E E T E E E E NES 65 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates iii FE Modeler User s Guide Geometry S
182. served Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 21 User Interface Outline Beam Properties 30 a Eee Beam Property 42 a Beam Property 43 a Beam Property 44 a Beam Property 45 Beam Property 46 a Beam Property 47 a Beam Property 48 a Beam Property 49 Beam Property 51 Beam Property 52 a Beam Property 53 a Beam Property 2100 Beam Property 2101 Beam Property 2132 Details View General Number of Cross Sec Section Information Section Identification Position along Beam Area lyy Izz Torsional Constant Nonstructural Mass Note Displays only if beam elements are present in the model e For beam properties from Mechanical systems beam data corresponds to the Beam Section property under Parts beam ID numbers are assigned by FE Modeler A Mechanical APDL archived file beam ID numbers are assigned by FE Modeler A NASTRAN PBEAM card beams for a single mesh import or for the first mesh to be imported retain their original ID numbers For additional information please see the table shown below Beam property data can be defined in two ways Either by defining 1 The area and moments of inertia 2 A shape where the properties are calculated on the fly For this case the following table shows the v
183. sired face s edge s or vertex ices depending on the type of projection for the Support entity ies and click Apply Modify the possible other fields of the Details View accordingly For additional information see the ANSYS Mesh Morpher and Initial Geometry help sections Associate a Working Geometry with a Mesh 1 2 9 Open a mesh file in FE Modeler Modify units as needed Highlight the Working Geometries tree object Click the New Working Geometry toolbar option Under Importation in the Details View click in the Source field and then click the button that displays in the Source field An Open dialog box displays allowing you to navigate to and open your geometry file Click the Generate toolbar option Highlight the Geometry Synthesis object Click on the Associate with a Geometry toolbar option The new tree object Initial Associated Configuration is produced The Working Geometry created above is automatically defined as the Selected Geometry property in the Details View of the new Initial Associated Configuration object If more than one Working Geometry existed you could change the desired geometry in the Selected Geometry field Click on the Associate toolbar option 10 You can now open the coupled files in the Mechanical application When the mesh and the geometry are associated you can only use the coupled entities in the Mechan ical application In addition for proper mesh association the mes
184. solver and the connections Note Any item not specifically noted here is not supported Also only a subset of loads from a Static Structural analysis with the solver target of Mechanical APDL is supported Supported Elements 2 D Models Any element options related to Mechanical APDL KEYOPT and Reals are not supported An example is the Thickness definition for a plane stress setting Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 168 of ANSYS Inc and its subsidiaries and affiliates Mechanical Data Processing Specifications Mechanical Mechanical APDL Shape Category Mechanical APDL Ele ment Type FE Modeler Generic Representation 4 Node Triangular Structural Planar 4 Node Quadrilateral Structural Planar PLANE182 PLANE182 3 Node Triangular Plane 4 Node Quadrilateral Plane 8 Node Triangular Structural Planar PLANE183 6 Node Triangular Plane 8 Node Quadrilateral Structural Planar PLANE183 8 Node Quadrilateral Plane 4 Node Triangular Thermal Planar PLANE55 3 Node Triangular Plane 4 Node Quadrilateral Thermal Planar PLANE55 4 Node Quadrilateral Plane 8 Node Triangular Thermal Planar PLANE77 6 Node Triangular Plane 8 Node Quadrilateral Thermal Planar 4 Node Triangular Electric PLANE77 PLANE230 p 169 8 Node Quadrilateral Plane 3 Node Triangular Plane 4 Node Quadrilater
185. stem with a Transfer connection from the Model cell to the Model cell 58 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates Link FE Modeler to Other Workbench Systems Response Spectrum Response Spectrum Engineering Data Inserts downstream Response Spectrum system with a Transfer connection from the Model cell to the En gineering Data cell Response Spectrum Geometry Response Spectrum Model Connect to downstream Response Spectrum system with a Transfer connection from the Model cell to the Geometry cell Connect to downstream Response Spectrum system with a Transfer connection from the Model cell to the Model cell Static Structural Static Structural Engin eering Data Inserts downstream Static Structural system with a Transfer connection from the Model cell to the Engin eering Data cell Static Structural Geo metry Connect to downstream Static Structural system with a Transfer connection from the Model cell to the Geometry cell Static Structural Model Connect to downstream Static Structural system with a Transfer connection from the Model cell to the Model cell Static Structural Samcef Static Structural Samcef Engineering Data Inserts downstream Static Structural Samcef system with a Transfer connection from the Model cell to the Engineering Data cell
186. stream Mesh system with Transfer connection from the Model cell to the Geometry cell Mesh Mesh Connect to downstream Mesh system with Transfer connection from the Model cell to the Mesh cell Modal Engineering Data Modal Geometry Inserts downstream Modal system with a Transfer connection from the Model cell to the Engineering Data cell Connect to downstream Modal system with a Transfer connection from the Model cell to the Geometry cell Modal Model Connect to downstream Modal system with a Transfer connection from the Model cell to the Model cell Modal Samcef Modal Samcef Engin eering Data Inserts downstream Modal Samcef system with a Transfer connection from the Model cell to the Engin eering Data cell Modal Samcef Geo metry Connect to downstream Modal Samcef system with a Transfer connection from the Model cell to the Geometry cell Modal Samcef Model Connect to downstream Modal Samcef system with a Transfer connection from the Model cell to the Model cell Random Vibration Random Vibration En gineering Data Inserts downstream Random Vibration system with a Transfer connection from the Model cell to the Engin eering Data cell Random Vibration Geometry Connect to downstream Random Vibration system with a Transfer connection from the Model cell to the Geometry cell Random Vibration Model Connect to downstream Random Vibration sy
187. te Assembly 3 Name the new Assembly Intersect Components You may intersect two components that contain the same type of entities element node or face This option creates a new component that contains the element types common to both of the originally selected components To intersect the entities of two components 1 Select two components in the Components view 2 Right click the mouse and select Intersect components 3 Name the new component Subtract Components FE Modeler allows you to subtract the common entities of two components 1 Select a component in the Components view 2 Select another component in the Components view whose members you want removed from the first component 3 Right click the mouse and select Subtract components The common entities of the two components are subtracted 4 Name the new component Add To a Component FE Modeler allows you to add a common entity or entities to an existing component 1 In the graphics window select an element element face or node from the model 2 Select a component in the Components view that you wish to add the entity to and that also corresponds to the element type 3 Right click the mouse and select Add To a Component The selected entities are added to the existing component Delete Components and Assemblies You can delete components and or assemblies from the Project tree by selecting the component or the assembly and then right clicking the
188. ted ALL NODES parameter NOT supported Note Please see the ABAQUS Element Types Supported by FE Modeler section for the specific ABAQUS Elements that are supported by FE Modeler ORIENTATION Used to define element coordinate systems NAME parameter supported DEFINITION parameter supported for COORDINATES and NODES options Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 160 of ANSYS Inc and its subsidiaries and affiliates ABAQUS Keyword Specifications SYSTEM parameter supported for RECTANGULAR and CYLINDRICAL options Supported Materials Keywords MATERIAL The NAME parameter is supported ELASTIC Supported for TYPE ISOTROPIC ENGINEERING CONSTANTS and LAMINA The DEPENDENCIES parameter is NOT supported Material property definition is NOT processed For TYPE ISOTROPIC Young s Modulus and Poisson s Ratio are supported gt If Poisson s Ratio is not specified 0 3 is the value that is used gt Temperature is dependency supported For TYPE ENGINEERING CONSTANTS and TYPE LAMINA Young s Moduli Poisson s Ratios and the Shear Moduli in the principal directions is supported gt Temperature dependency is NOT supported the data for the first temperature is used DENSITY The DEPENDENCIES parameter is NOT supported gt Material property definition is NOT processed Temperature dependency is supported EXPANS
189. tem with a Transfer connection from the Model cell to the Geometry cell Fluid Flow Fluent Mesh Connect to downstream Fluid Flow Fluent system with a Transfer connection from the Model cell to the Mesh cell Fluid Flow Polyflow Geometry Connect to downstream Fluid Flow Polyflow system with a Transfer connection from the Model cell to the Geometry cell Fluid Flow Polyflow Mesh Connect to downstream Fluid Flow Polyflow system with a Transfer connection from the Model cell to the Mesh cell Harmonic Response Geometry Harmonic Response Engineering Data Inserts downstream Geometry system with Transfer connection from the Model cell to the Geometry cell Inserts downstream Harmonic Response system with a Transfer connection from the Model cell to the En gineering Data cell Harmonic Response Geometry Connect to downstream Harmonic Response system with a Transfer connection from the Model cell to the Geometry cell Harmonic Response Model Inserts downstream Harmonic Response system with a Transfer connection from the Model cell to the Model cell Linear Buckling Linear Buckling Engin eering Data Inserts downstream Linear Buckling system with a Transfer connection from the Model cell to the Engin eering Data cell Linear Buckling Geo metry Connect to downstream Linear Buckling system with a Transfer connection from the Model cell to the Geometry cell
190. the Model cell to the Model cell Transient Structural Setup Inserts upstream Transient Structural system with a Transfer connection from the Setup cell to the Model cell Transient Thermal Model Inserts upstream Transient Thermal system with a Transfer connection from the Model cell to the Model cell Transient Thermal Setup Inserts upstream Transient Thermal system with a Transfer connection from the Setup cell to the Model cell Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 55 System Usage in Workbench Table 2 Transfer Data To New p 56 lists every possible link that can be made from an FE Modeler system When you use the Transfer Data To New Context Menu Option to make the connection in most cases the only automatic link is to the Engineering Data cell in the system behavior different from this is noted in the table You can drag the Model cell from the FE Modeler system to any of the other cells indicated in the table below The expected behavior of each link is explained Table 2 Transfer Data To New Menu Option Workbench Sys tem Cell Link Behavior Engineering Data Engineering Data Inserts downstream Engineering Data system with a Transfer connection from the Model cell to the Engin eering Data cell Electric Engineering Data Inserts downstream Electric system wit
191. the mesh may be completely wrong The unit system of the Assembly Mesh will serve as the unit system for the whole model it will be used when displaying it in FE Modeler and it will also be used for downstream connections If you use a unit system other than the default MKS mm for the Assembly Mesh it may result in slower geometry conversions 44 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates Open or Create an FE Modeler System Once FE Modeler imports the model if the unit systems of the individual meshes or the Assembly Mesh are changed everything that has been created in the FE Modeler Editor will be lost It is therefore very important to carefully set the Unit System properties before importing the meshes this advice also applies to the Body Grouping and ID Handling properties on the input meshes Material data from the Mechanical APDL application NASTRAN and ABAQUS is interpreted in the As sembly Mesh unit system As a result the values displayed in Engineering Data can be different than what you see in FE Modeler Entity ID Numbering When mesh files are imported a number of different types of entities will be imported The ID Handling option specified for a mesh file will apply to any of these types found in the file Nodes Elements The remaining types of entities will always be automatically renumbe
192. the toolbar and use the cursor to select the bodies on the model that should be included in this Sew Hold down the Ctrl key to select multiple bodies on the model Hold down the left mouse button and move your cursor over the bodies in the model in a painting motion to select the bodies that the cursor passes over 5 In the Sew Details Geometry field select Apply 6 Select the Generate the Parasolid Geometry button in the toolbar After this operation all of the bodies selected for the Sew are converted to a single Parasolid Geometry body If this operation fails try changing the Tolerance in the Details view Tolerance field or try Using Iterative Skin Detection p 71 to segment the mesh and then regenerate the Parasolid geometry Repeat this process until you have a totally successful conversion Model ANSYS FE Modeler Fle vew Insert Tools Hep in E a GBrret Preview C Target System Mochica AS m o Sewl Generate the Parasold Geometry GR Geometry Syrthess yp Bn Detection Took Working Geometres B tel Geometry Geometry Once your sewed Parasolid Geometry has been created you can link the FE Model to a DesignModeler Component System in the Workbench Project Schematic and edit the geometry in DesignModeler Export a Parasolid File To export the model as a Parasolid file do the following 1 In the FE Modeler Tree Outline select the Parasolid Geometry 2 Select Export to a Parasolid File in t
193. ticular element types Contact Properties Shell Thickness Properties Mass Properties Rod Properties Beam Properties Spring Properties Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 151 Import Specifications Contact Properties Contact processing occurs for elements TARGE169 to CONTA176 only Contact objects are created for TARGE170 CONTA173 CONTA174 and CONTA175 For all of the other element types in the group a nodal component is created to represent the intended contact In addition for TARGE170 only triangular and quadrilateral faced targets are supported All other shapes are represented with a nodal component For any contact object defined all associated element options KEYOPT and real constants are supported Shell Thickness Properties Mechanic Supported Properties al APDL Shell Ele Constant Variable Orientation ment Thickness Thickness Angle Type 28 X 41 43 Added Mass Offset 57 63 93 X X X X X X x Xx XxX X X X X X x Xx 1 A constant thickness is used if only the first thickness is defined 2 Valid only if section data commands are used 3 Either section data or real constant data can be specified Note Composite properties are not supported Mass Properties The Mass property is processed fo
194. ties are assigned an arbitrarily large ID numbers ABAQUS DASHPOT and SPRING keywords spring ID numbers are assigned by FE Modeler Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 27 User Interface Composites View The purpose of the Composites view is to Provide a listing of all composite properties e g offset non structural mass thickness orientation angle and material ID for each layer e Display grouping of composites with identical properties e Provide a visualization of composite elements in a model Filter element selection for composite elements only Differentiate elements with different composite properties by color Outline Composites 985 Composites14 Composites 140000986 Composites140000987 Composites 140000988 Composites 140000989 Composites 140000990 Composites140000991 Composites140000992 Name ae anya Nene ep Ne pat eee Norm pt Aan 3 Details view General Symmetric Lamina Nonstructural Mass Offset Orientation Angle Number of Layers Layer Information Layer Identification 1 Material Identifica 3001 Thickness 1 e 003 Orientation Angle 0 Note Displays only if composite properties are present in the model e For composite properties from A NASTRAN PCO
195. ts reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 139 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information 140 of ANSYS Inc and its subsidiaries and affiliates FE Modeler Modal Simulation Tool The Modal Simulation tool allows you to define a modal analysis that is solve for Eigenvalues based upon modal solution options and constraint sets specified by a NASTRAN bulk data deck ABAQUS input file STL file or a Mechanical model You may also modify the following settings when requesting a Mechanical APDL command input file e Constraints Number of modes to find e Frequency range Solver technique Imported File Requirements The Mechanical application the environment input into FE Modeler must be from a Modal analysis in order to display the modal options NASTRAN require models to have SOL equal to 103 in the executive control to display the modal options ABAQUS the FREQUENCY keyword should be defined in the input deck in order to display the modal options Steps to Perform a Modal Analysis Use the following procedure to perform a Modal analysis on an imported ABAQUS NASTRAN Mechan ical or Mechanical APDL archived file 1 Import a Mesh file into FE Modeler FE Modeler displays the Import Summary 2 Select any object on the Outline tree and then select Insert gt Modal Simulatio
196. ures Number of shin componerts 12 Algorithn Parameters Sharp Edges Angie Ignore the Secondary Nodes No Planes Tolerance Angie 0 5 Treeview Display Cispiay al SDT componerts No Number of SOT components 200 3 In the Tree Outline right click on the geometry and click the Initial Geometry button in the toolbar Or In the Tree Outline right click on the geometry and select Insert gt Initial Geometry to create the Initial Geometry p 74 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 119 Parasolid Geometry Creation FN A2 FE Model ANSYS FE Modeler Pie View Insert Took Heb ed E a 5 Geometry Syrthess QB intial Geometry GB Associte wth aG Model A2 impot Samay 2 gt Gorma Dota Bement Types 1 E Ds todes 1 gt Materiais 1 aD gt Ce wc o gt Renee Assocete wth a Geometry 4 In the Tree Outline select the Initial Geometry and click Convert to Parasolid in the toolbar The Para solid geometry displays in the Tree Outline FN A2 FE Model ANSYS FE Modeler Fle View Insert Tools Hep i D Chpt Preview Ge Tarots kasd Geometry Now Target Configuration GE Corrvert to Parascld WP Modet a2 gt Inport Samay Corwert to Parascbd Note In some cases the automatic conversion of the Faceted Geometry to the Parasolid Geometry may only b
197. utton Tool Tip Name Dis played Description Coordinates Vertex Enables the exterior coordinates of the model to display adjacent to the cursor and updates the coordinate display as the cursor is moved across the model once an Initial Geometry is created If you click with the cursor on the model a label displays the coordinates of that location Select a vertex on the model once an Initial Geometry is created Edge Select an edge on the model once an Initial Geometry is created Face Select a face on the model once an Initial Geometry is created Body Select a body on the model once an Initial Geometry is created Can only be used for the Sew Tool Part Select a part from the model once an Initial Geometry is created Can only be used for Transformations 5 lel o B ed ea Rotate Activates rotational controls based on the positioning of the mouse cursor Pan Moves display model in the direction of the mouse cursor e Zoom Displays a closer view of the body by dragging the mouse cursor vertically toward the top of the graphics window or displays a more distant view of the body by dragging the mouse cursor vertically toward the bottom of the graphics window Box Zoom Displays selected area of a model in a box that you define Fit Fits the entire model in the graphics window Toggle Magnifier Window On Off Displays the Magnifier Window P
198. v t y ll w a DA JL Fluid Dynamics Structural Mechanics Electromagnetics Systems and Multiphysics a FE Modeler User s Guide ANSYS Inc Release 15 0 Southpointe November 2013 275 Technology Drive Canonsburg PA 15317 ANSYS Inc is ansysinfo ansys com certified to ISO http www ansys com 9001 2008 T 724 746 3304 F 724 514 9494 Copyright and Trademark Information 2013 SAS IP Inc All rights reserved Unauthorized use distribution or duplication is prohibited ANSYS ANSYS Workbench Ansoft AUTODYN EKM Engineering Knowledge Manager CFX FLUENT HFSS and any and all ANSYS Inc brand product service and feature names logos and slogans are registered trademarks or trademarks of ANSYS Inc or its subsidiaries in the United States or other countries ICEM CFD is a trademark used by ANSYS Inc under license CFX is a trademark of Sony Corporation in Japan All other brand product service and feature names or trademarks are the property of their respective owners Disclaimer Notice THIS ANSYS SOFTWARE PRODUCT AND PROGRAM DOCUMENTATION INCLUDE TRADE SECRETS AND ARE CONFID ENTIAL AND PROPRIETARY PRODUCTS OF ANSYS INC ITS SUBSIDIARIES OR LICENSORS The software products and documentation are furnished by ANSYS Inc its subsidiaries or affiliates under a software license agreement that contains provisions concerning non disclosure copying length and nature of use compliance with exporting
199. w For each view type listed below the Details View pane contains expandable subsets of data that provide additional details about that aspect of the finite element representation Selecting one of the subsets displays subsequent data graphical displays and selectable entities You can Add or remove selections from the list by using the Ctrl key Should you have the need to clear all selections from a list you must use the Ctrl key e Use the Shift key to select ranges within the list Initially highlighted items in the list correspond to data applicable to the existing element selection For example if no element selection exists the view highlights all items automatically The following view types are available in FE Modeler Import Summary View Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates User Interface Generated Data View Coordinate Systems View Element Types View Bodies View Contacts View Materials View Thicknesses View Rod Properties View Beam Properties View Bar Properties View Mass Properties View Spring Properties View Composites View Components View Constraint Equations View Constraints View Forces View Pressures View Curved Pipe Properties View Geometry Synthesis View Import Summary View The purpose of the Import Summary view is to provide A one page summary of the
200. xahedron and one for the tetra hedron However element types have the same KEYOPT settings Supported Element Types The following element types are supported by FE Modeler Shape Category The Mechanical APDL Element Type Point MASS21 MASS71 MASS166 FOLLW201 2 D Linear Line INFIN9 FLUID129 SHELL163 SHELL208 COMBI214 SURF251 PIPE288 3 D Linear Line LINK11 COMBIN14 LINK31 LINK33 LINK34 COMBIN37 FLUID38 COMBIN39 COMBIN40 LINK68 CIRCU94 FLUID116 CIRCU124 CIR CU125 TRANS126 FLUID138 LINK160 BEAM161 COMBI165 LINK167 PRETS179 LINK180 MPC184 BEAM188 2 D Quadratic Line SURF151 SURF153 SHELL209 Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 149 Import Specifications Shape Category The Mechanical APDL Element Type 3 D Quadratic Line 2 D Linear Quadrilateral SURF156 BEAM189 PIPE289 ELBOW290 PLANE13 PLANE25 FLUID29 PLANE55 PLANE75 FLUID79 FLU ID81 INFIN1102 FLUID1412 PLANE1622 PLANE1822 INTER192 INTER202 CPT2122 3 D Linear Quadrilateral SHELL28 SHELL41 INFIN477 INFIN1152 FLUID130 SHELL131 FLUID1362 SHELL143 2 SHELL157 2 SHELL163 SHELL181 2 SURF2522 SOLID272 2 D Quadratic Triangle PLANE35 2 D Quadratic Quadrilateral PLANE532 PLANE77 PLANE787 PLANE83 INFIN1102 HF1187 PLA
201. xpansion coefficient may be temperature dependent Isotropic and orthotropic thermal conductivity Isotropic properties may be temperature dependent When NASTRAN is used as the Target System the following entities if present are written out as NASTRAN commands from FE Modeler Release 15 0 SAS IP Inc All rights reserved Contains proprietary and confidential information of ANSYS Inc and its subsidiaries and affiliates 175 Solver File Creation FE Modeler Generic Representation Exported NASTRAN Element Type 3 Node Triangular Planar 4 Node Quadrilateral Planar CTRIA3 CQUAD4 6 Node Triangular Planar CTRIA6 8 Node Quadrilateral Planar CQUAD8 8 Node Hexahedron CHEXA 6 Node Wedge CPENTA 4 Node Tetrahedron CTETRA 10 Node Tetrahedron 20 Node Hexahedron CTETRA CHEXA 15 Node Wedge CPENTA 20 Node Wedge CPENTA 3 Node Triangular Shell CTRIA3 6 Node Triangular Shell CTRIA6 4 Node Quadrilateral Shell CQUAD4 8 Node Quadrilateral Shell CQUAD8 Point Mass CONM1 2 or 3 Node Linear Line CBAR Exported NASTRAN FE Entity Types have the following specifications FE Entity Type Exported Information Nodes Nodal coordinates Elements Element definition includes element connectivity Material Properties Material properties include e Isotropic structural properties MAT1 p 156
202. ynthesis Parameters sawsatactoucuarsanpuse dead aunarruneunapenveaneyaiapicagestuenameumiabecesne aceite cal ataeneebacass 66 Using 1D Geometry in FE MOdelen ys iscapssnavedvssnescaversauesins epics seunioedesioaveapearWishite Apia aati meptamadan na 67 Skin Detection LOO scc5 vies decease de ctugshdavangaxeeeasVevauncedeteadess cchaveadeazace costed EEEE R REA P EE dodecds 68 Using Iterative Skin DELO CUR yess ax oa cas dea calasetegvvinacansivnntsataied ri ai ws natialenntsaibi cata siecle es dedoeeansaturvanes 71 Working GEOmetries caine dit anera aka A acide ia Ea devs araa SNK gee Lar ae Gea essa Pica tees Ok ace aeae 72 Initial GEOmetr sinsdien aE a EA EE A E A caudate ig eae RRS Gea aE 74 MESH IAQ IIOSTC Ses n ae nirna eto dies iets Aa RE basen AEE na Eaa A kau deg O E AET AROE EAE 75 ANSYS Mesh Morphett irnn n a a a R A dens AE a A a 76 Defining a Transtormation smoro h E e e a E aA E a e E E i 76 Target Configuratio dusts saceuistetiaussasianstiacsacerssdaeatauensacasneianuntandeais lt biae Ea aa aii EE 77 Design POINTS acesi ain iiei ar EnS EES S SE EE SEE E E Si Ss 77 Transformation TYPES an ee e e a a a Ea E E EEE NAER a A EE AEE ET EE aS aae 78 Apply Transformations ee a aea ao aaae aa A EE EAOa Maida A avian eats 79 Mesh Quality after Morphing ssssssssssssesssssesssssesssssressssrersssresssstessssteesssteessseresssereesssteesssseesssseesseee 79 P ramet rized Config ratiONsssissenininsin anna a aii a a eaa aaar A aE 80 Using FEM Ge

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