Home

DYNAFORM 5.0

1. Ease et x Name LOWTOOL ID E Name ID Color ie Delete Clase 4 Once you have entered the new name LOWTOOL and selected a color click on the Modify button located at the bottom of the Edit Part dialogue as shown above to make the changes DYNAFORM Training Manual 10 5 Click Close to end this operation dit Par loj x kame LOWTOOL ID 2 cor D Name o dD Modi Delete Close 6 Save your database V Current Part All lines surfaces and elements which were created will automatically be placed into the current part When creating new lines surfaces or elements always make sure the desired part is set as current Note When auto meshing surfaces the user does have the option of assigning the created mesh to the parts that contain the individual surface data In other words you can keep the mesh in the original parts rather than have them all created in the current part This will be dealt with later 1 To change the current part click on the Current Part dialogue in the Display Option dialogue Currentrat Si _jActive Window Shade M Elements mE Surface lines m Nodes Or select Parts gt Current on Menu bar Sien Toos Prepr Create Cru Edit Add To Part Turn On CUFFENE k Separates Transparent Summary DYNAFORM Training Manual 11 2 The Current Part dialogue window will be displayed select by Mame co Only Select On Al On
2. 12 NASTRAN nas 13 Pamcrash pc 14 Radioss rad Line Data lin Iges igs 1ges VDA vda DXF dxf LS Nike 3D nik mod DYNAIN File din UG Part prt oe a ee II Practice Some Auxiliary Menu Operations After successfully reading in the needed files to begin the finite element modeling practice to get familiar with some of the basic functions and menus View Manipulation File Parts Tools Preprocess Analysis Setup Utilities View BSE DFE QuickSetup Help Clelelald aa ela lal iel o cb Isl ae 171 View Manipulation DYNAFORM Training Manual 6 The view manipulation area of the Toolbar is one of the most visited spots in eta DYNAFORM These functions enable the user to change the orientation of the display area Place the mouse pointer over each icon to display the name and function of each icon Also take notice of the Display Option window shown below at the bottom of the screen This is another area enabling the user to manipulate the display area Current Part is Active Window _J Shade mM Elements m Surface E Lines E Nodes The following steps will help you become more familiar with the functions found in the Toolbar and in the Display Option window 1 Select Isometric from the Toolbar This places the displayed geometry in an isometric view as shown earlier 2 Rotate the geometry dynamically about the z axis approximately 90 by using the Rotate
3. DDG IF BH180 BH210 BH250 BH260 BHa00 DF210 HSLA250 High HSLA3O0 HSLA350 Advanced High DPOOU DPeOO CO CO Hot Folleg DOQ IF HSLA400 HSLA500 AAA TEA2 AAA A Bel AAA T Ge ALUMIL AAGD0S AA AA AAG 111 ELLE HH CND Olli 4 Select OK to use the default material parameters following image for the DQSK material model note ETA makes no guarantees as to the validity or accuracy of the generic material models in the material library Users should contact their material suppliers to determine material parameters To complete the material definition select OK from the material dialogue and return to the QuickSetup interface Save the changes DY NAFORM Training Manual 30 MATERIAL TYPE 36 e El al MATERIAL TITLE bask si MASS DENSITY 7 s90000E6 009 2 S YOUNGS MODULUS 2 070000E6 005 POISSONS RATIO 2800000E 001 HARDENING RULE EXPON f2cooo00e 000 MATERIAL PARAM P1 K 5 650000E6 002 MATERIAL PARAM P2 Nj 2 100000E 001 EXPONENT FACE M 6 000000E 000 OOO LANKFORD PARAM ROD 1 7500006 000 LANKFORD PARAM R45 1 620000E 000 LANKFORD PARAM R390 1 870000E 000 z OC ok Advanced Default Reset Cancel Before we move on let s go through the other functions in the QS interface e Auto Assign will assign parts as tooling that follow the QuickSetup default naming convention for example if the blank part name is named BLANK once the auto assign button is selected the part
4. BLANK will be defined as the model BLANK DIE and BINDER are the other tooling names recognized and automatically assigned Drawbeads are not recognized by the Auto Assign function e Constraint allows the user to define SPC single point constraint for symmetric or other boundary conditions e Advanced allows the user to change default parameters related to QuickSetup e Apply automatically offsets all defined toolling with its mating tool and defines the travel curves e Reset deletes all mating tools and travel curves resetting the database to the state it was before the apply button was selected e Preview allows the user to animate and check the tooling travel curves Submit job brings the user to the analysis menu e Fyit will allow the user to exit the QS menu DY NAFORM Training Manual 31 Quick Setup Draw Draw Type Single action inverted draw Lower Tool Available S Lower Tool Material None Thickness Ju op Tool Control Tool Travel Velocity 5000 00 Binder Clase Velocity 2000400 cx Lower Binder Force 1 Auto Assign Constraint date Heads Advanced Help Apply Reset Preuleu midis Exit Blank Parameters 5 Now back to our exercise Select Apply the program will automatically create mating tools position the tools and generate the corresponding travel curves 6 Select Preview to check the tooling motion 7 Compare your display
5. DY NAFORM Training Manual 38 Preprocess 4 Select the Copy Elements icon from the Elements dialogue Element 5 Click on the drop down menu to the right side where it says Type and select Offset DYNAFORM Training Manual 39 6 Toggle off In Original Part so that the offset elements will be put in the current part Make sure UPTOOL is set as current Toggle off Delete Original Part The original part will be kept 7 Enter 1 in the field where it says Copy Number as the number of copies Enter 1 1 in the field where it says Thick as the offset thickness In Dynaform we use the material thickness of the blank plus 10 Since we will be using a blank thickness of 1 enter 1 1 in the field Note We use 10 of the thickness for simulation because when we do the post processing wrinkle data can be lost if there is not enough space between the punch and die after it has completed its travel path If we use only the blank thickness as a gap the punch will iron the blank flat creating the Type Ofset en F In Griginal Part Delete Original Element TC Pomt to Point htave Copy Number 1 Thick 98 impression that no wrinkling has occurred 8 Click onSelect Element DYNAFORM Training Manual 40 9 Select Elements dialogue appears Click on the Displayed button you will notice that the selected elements will turn white 10 Click OK to accept the selected elements and return
6. From here select OK once more to return to the Define Tools dialogue Now click OK in the Define Tools dialogue we are done defining the motion curves for the tools 6 Select OK to finish defining Motion Curves 7 Save the changes DYNAFORM Training Manual 64 XI Preview Tool Animation We have now completed all of the pre processing outside of setting up the final simulation parameters and submitting the job Before we can do that however we should verify that the tools are moving correctly based on the motion curve information we have assigned 1 Click Tools Animate on Menu bar Seem Preprocess Anal Define Tools Cl Position Tools gt Draw Bead Ctrl D Blank Generator Define Blank Ctri 6 Blank Operation gt Material Total Frames Property Animate ew _caneel_ Tools On off Summary 2 Click Play to animate the tooling using the default parameters Note Depending on the speed of the machine that is used to run eta DYNAFORM the animation might move too quickly If this is the case enter a larger number of frames 3 You can change the view while running the preview animation Verify that the Punch is moving in the Z direction and make sure it is moving the full distance into the Die Since we are using a force curve for the Binder you will not see it move Also notice the Individual Frames switch on the dialogue After viewing the animation click on the Stop button on the Animate dialogue to exi
7. eroded kinetic energy 4 BHHGHE HH eroded internal energy H BHRRHE HH total energy 1 6HQ6HE 26 total energy initial energy i Rank an energy ratio wo eroded energy i ant an global x velocity H Dank n global y velocity H Dank an global z velocity 4 BHRRBHE HH number of shell elements that reached the minimum time step cpu time per zone cycle nanoseconds average cpu time per zone cycle nanoseconds average clock time per zone cycle nanoseconds estimated total cpu time estimated cpu time to complete estimated total clock time estimated clock time to complete added mass 4 000E 00 percentage increase 4 BHRRE HH 1 t 8 6668HE 68H dt 9 14E O7 flush iro buffers i t 6 6H68E 66 dt 9 14E 67 write d3plot file SEC SEC SEC SEC 5 Once the solver has given you the preliminary estimated time you can refresh this estimate by first pressing Ctrl C This will momentarily pause the solver which will prompt you to enter sense switch Type the switch command you would like to use and press enter swl Terminates the Solver sw2 Refreshes the Estimated Solving Time sw3 Creates a d3dump Restart File sw4 Creates a d3plot File Note These switches are case sensitive and must be all lower case when entered Enter sw2 and press Enter Notice the estimated time has changed You can use these switches at anytime while the solver is running DY NAFORM Training Manual 36 initialization completed
8. key default parameters are provided by this file Advanced users can change these default parameters accordingly For Unix Linx users the DynaformDefault file is located under both the installation directory and the user s home directory The DynaformDefault file located under the installation directory will take precedence over the one located in the user home directory DYNAFORM Training Manual 79 CONCLUSION This concludes the training guide s basic overview of eta DYNAFORM 5 0 This manual is meant to give the user a basic understanding of finite element modeling for forming analysis as well as displaying the forming results It is by no means an exhaustive study of the simulation techniques and capabilities of DY NAFORM For more detailed study of DY NAFORM the user is urged to attend a DY NAFORM training seminar Please reference the DYNAFORM and the LS DYNA User s Manuals for detailed explanation of individual functions and analysis settings DY NAFORM Training Manual 80
9. 338 t 3 6166E 64 dt 9 14E 87 write adaptivity stress 338 t 3 6166E 64 dt 9 14E 7 add shell elements from memory needed for solution 2104520 input of data is completed initialization completed S98 t 4 5155E 64 dt S 59E 7 write adaptivity stress 598 t 4 5155F 64 dt S 59E 7 add shell elements from memory needed for solution 2784528 input of data is completed initialization completed S67 t 6 6261E 64 dt S 59E 7 write adaptivity stress 67 t 6 8261E 64 dt S 59E 7 add shell elements from memory needed for solution 2984528 input of data is completed initialization completed 1136 t 7 5246E 64 dt S 59E 7 write adaptivity stress 1136 t 7 5246E 64 dt 5 59E 7 add shell elements from memory needed for solution 2784528 input of data is completed initialization completed 1464 t 9 8236E 64 dt 5 59E 7 write adaptivity stress 1464 t 9 8236E 64 dt 5 59E 67 add shell elements from memory needed for solution 29845248 input of data is completed initialization completed enter sense switch sw When you submit a job from eta DYNAFORM an input deck is created which the solver LS DYNA uses to process the analysis The default input deck names are yourdatabasename dyn and yourdatabasename mod The dyn file contains all of the control cards and the mod file contains the geometry data Advanced users are encouraged to study the dyn input file For more information refer to the LS DYNA User s Manual LS DYNA pdf Again the eta DY
10. ALL CHF Ok Winda 3 Similar to the Part On Off window this window allows you to select the current part in different ways Place the cursor over each icon to identify its function 4 Set the part BLANK LI as current by selecting the part name from the Select by Name list that is displayed 5 Practice setting the current part 6 Turn off all of the parts except BLANK LI and set it as current DY NAFORM Training Manual 12 MESHING Meshing from surface or line data is a very important step contributing to a successful simulation There are many methods of creating mesh however in this exercise the Blank Generator and Surface Mesh will be used to generate meshes L Blank Meshing Blank meshing is the most important mesh function since the accuracy of the forming results depends heavily upon the quality of blank mesh There is a special function for blank meshing 1 Select Tools Blank Generatoron Menu bar 2 There are four lines in BLANK LI so select the BOUNDARY LINE from the Select Option dialogue Preprocess Anal Define Tools Etri T Position Tools Be Draw Bead Ctri D Blank Generator Define Blank Ctri B Blank Operation E Material Property Animate Tools On off Summary 3 The Select Line dialogue window is shown as below Exclude Part Reject OK Cancel DY NAFORM Training Manual 13 There are 4 lines in the part Select the lines one by one by left clicking on the
11. in the Surface Mesh dialogue Check your mesh with the mesh displayed below i ia e een 7 Press Exit on the Surface Mesh dialogue to exit the function DYNAFORM Training Manual 17 Now that we have all the parts meshed you can turn off the surfaces and lines by turning off Surfaces and Lines in the Display Option dialogue This makes it easier to view the mesh Save the changes CurrentPat EP _lActive Window J Shade P Elements Surface E Lines m Nodes il Mesh Checking Now that the mesh has been created its quality 1s needed to be checked to verify that there aren t any defects that could cause problems later All the utilities used for checking the mesh are located under the Preprocess gt Model Check on the Menu bar mies Analysis Set LineFoint Cirl L SUMACE Ctrl4 S Element Ctrl E Node Etri Mesh Repair Ctrl k Model Check ctrl SE Ctrl U NodeElement Get Cru Auto Plate Normal 1 Select Auto Plate Normal from the Model Check dialogue A new dialogue will be displayed 2 The displayed dialogue prompts you to pick an element to check all the active parts or an individual part for element normal consistency Select an element on the part LOWTOOL 3 An arrow will be displayed showing the normal direction of the selected element A prompt will ask IS NORMAL DIRECTION ACCEPTABLE Pressing YES will check all elements in the part and reorient as needed to the direction that is displayed Pressin
12. the current part automatically We can now place the lower ring elements in this part 18 Click on Parts gt Add To Part on Menu bar Tools Prepr Create Clap Edit Agd To Part Turn Op Current Separate Transparent Summary DYNAFORM Training Manual 44 19 The Add To Part window appears as follows Click on the Element s button as shown below Unspecified To Part Close Amal 20 The Select Elements window appears as shown in next page The easiest way to select all elements of the ring is to switch the view to the YX plane on the Tool Bar then select the Spread icon press and drag the left mouse button on the Angle Slider to set a small angle Since the Ring surface is flat set the smallest angle you can select e g 1 as one degree Angle 4 Select By Dar Wars Displayed All Elements Exclude Total Selected 0 Reject Last Selection ok Cancel 21 Click on any element on the right ring of LOWTOOL DYNAFORM Training Manual 45 ring of LOWTOOL 22 Click any element on the left DYNAFORM Training Manual All elements in the flat area before an element angle change of larger than 1 degree should be highlighted Compare your display to the preceding image If your results differ repeat the above steps to re select 23 Select OK on the Select Elements window You will find the number of elements 67 is shown on the
13. to automatically offset the upper binder from this run out This procedure is common to all QuickSetup models that require a binder P Define the Lower Ring from the Lower Tool Now we will separate the Lower Ring from the LOWTOOL Turn on LOWTOOL and turn off all other parts Move Elements on Run out of LOWTOOL into Lower Ring fe Create a new part called LOWRING This part will hold the elements that we separate from the LOWTOOL Click Parts gt Create on Menu bar me fools Prepr Create tri P Edit Ad Tpbart Turn On Current Separate Transparent summary Enter LOWRING in the name field Click OK and the part will be created Create Part aka Ok Apply Cancel The part LOWRING has been created and set as the current part automatically We can now place the lower ring elements in this part DYNAFORM Training Manual 21 4 Click on Parts gt Add To Part on Menu bar Tools Prepr Create Ctri P Edit Add To Part Turm Op Current Separate Transparent Summary 5 The Add To Part window appears as follows Click on the Element s button as shown below Add TO else Add g Linets H Elernent s H Surfacets To Part SE Apal 7 6 The Select Elements window appears as shown in next page The easiest way to select all elements of the ring is to switch the view to the YX plane on the Tool Bar then select th
14. to the Copy Elements dialogue DYNAFORM Training Manual 41 11 Click on Apply all offset elements are placed into the part UPTOOL Check your display using the Side View function BI A Feet IN e Mere NI DYNAFORM Training Manual 42 12 If your results differ select Undo Repeat the above steps to re copy Copy Elements Type Offset In Original Part Delete Original Elements _ Pol te Point Move J Set Ls Copy Number a Thick E SE bg EE bg Select Elements 13 Turn off the part LOWTOOL so that only UPTOOL is displayed Switch to the isometric view Compare your display to the display below V CH E e ZX W b A TOH iv a P w OM or V d D Ki I ill 14 Save the changes DYNAFORM Training Manual 43 II Create the Lower Ring Now we will separate the Lower Ring from the LOWTOOL Turn on LOWTOOL and turn off all other parts Move Elements on Run out of LOWTOOL into Lower Ring 15 Create a new part called LOWRING This part will hold the elements that we separate from the LOWTOOL Click Parts gt Create on Menu bar Tools Create Ctri P Edit Add To Part Turn On Current separate Transparent summary Prepon 16 Enter LOWRING in the name field Click OK and the part will be created Create Part aHa JK Apply Cancel 17 The part LOWRING has been created and set as
15. value should be the Blank Thickness to avoid initial penetration Press Apply and the tools will be automatically positioned 4 Compare your display with the following image SC ez IN Y y An N E Mu K A AN TANA Kach IR Kl 0 ZA ah Eu C I es A UAVS Sr V 2 7 aa A j Wee KG a CO A 8 y 4 vi Wer K 4 7 i 5 If your result differs select UNDO to repeat the above steps and make sure the result is correct If the position is wrong check Setup Analysis Parameter make sure the Draw type is set to inverted 6 Select CLOSE to exit the auto position menu 7 Save the changes IX Measuring the Punch Travel Distance Now that the parts have been meshed and defined as tools we can setup the motion curves The first step 1s to find the travel distance of the tools 1 Click Tools Position Tools Min Distance on Menu bar DYNAFORM Training Manual 59 Preprocess Analysis Setup Define Tools Ctri T cal en Pasitian Tools auto Position Draw Bead t Move Tool Blank Generator Min Distance Define Blank Ctri B Blank Operation a Material Froperty Animate Tools Onoff Summary 2 The Min Distance dialogue will be displayed Select Z direction as the direction to measure in then highlight the Punch following by the Die This will allow user to measure the distance in the Z direction between the Pu
16. AFORM database processing files DY NAFORM Training Manual has been saved This includes all input decks and post 68 POST PROCESSING with PostGL For PC users PostGL reads and processes all the available data in the d3plot file In addition to the undeformed model data the d3plot file also contains all result data generated by LS DYNA stress strain time history data deformation etc I Reading the Results File into the Post Processor Start the Dynaform PC Post Processor PostGL The default path for PostGL is C Program Files Dynaform In this directory double click the executable file PostGL exe PostGl can also be accessed from the programs listing under the start menu under DY NAFORM 1 From the File Menu select Open Re oe Password er OF Print Went tor Default Font Size H Save Model Properties Eat The Open File dialogue will be displayed Look in E Dynaforrn sl Si el Dynatormn PC Examples m Manuals a8 d3plot File name Open Files of type JS Doha Posti d3plot sl Cancel Help ye e DYNAFORM Training Manual 69 2 II Select LS DYNA Post d3plot to PP file from the Files of Type list This option will allow you to read in the d3plot file and then automatically creates a file called PostGL pp The pp file can be read in much faster then the d3plot file and allows you to save space since the DD file is much smaller then the d3plot files You will only need
17. DYNAFORM 5 0 Training Manual Version 5 0 Engineering Technology Associates Inc 1133 E Maple Road Suite 200 Troy MI 48083 Tel 248 729 3010 Fax 248 729 3020 June 10 2003 By Jeanne He TABLE OF CONTENTS IN FOGUC TION genee Page 3 Database Manipulation cee eeees Page 4 E EE Page 13 QUICK SCAU D EE Page 21 Reie ee TE EE Page 38 POSE ENEE ENEE Ae Page 69 e e EE Page 80 DY NAFORM Training Manual 2 INTRODUCTION Welcome to the DYNAFORM 5 0 Training Manual DYNAFORMS 0 is the unified version of the DYNAFORM PC and Unix platforms This manual is meant to give the user a basic understanding of finite element modeling for forming analysis as well as displaying the forming results It is by no means an exhaustive study of the simulation techniques and capabilities of DYNAFORM For more detailed study of DYNAFORM the user is urged to attend a DY NAFORM training seminar This manual details a step by step sheet metal forming simulation process through traditional finite element FE modeling and the newer QuickSetup interface process Users should take the time to learn both setup processes as each has inherent benefits and limitations The traditional setup procedure is extremely flexible and can be used to setup any forming simulation Because the QuickSetup makes certain assumptions as to the type of tooling configuration selected it is not as flexible however it automates many of the procedures required for t
18. Etrit Boundary Condition Ctri u ModevElement Set Ctri 3 Select Surface Mesh from the Element menu as shown below DYNAFORM Training Manual 15 Element T eT ed E Al BEER EERE an an ale EE x 2 py J Label Elernents J Shrink Elements E 4 From the Select Surface dialogue choose the Displayed Surf icon Select By Cursor Displayed Surt Key in Surf Range ok Cancel Notice all of the displayed surfaces will turn white This verifies they have been selected This dialogue window allows you to select the surface s in different ways Place the cursor over each icon and button to identify its function 5 In the displayed Surface Mesh dialogue window default values will be used for all fields Click the in Original Part option click off the Boundary Check option dialogue and click Apply DYNAFORM Training Manual 16 Surface Meshi i MEd Mosher Tool Weeer Connacted e Unconnected SE Note Chordal deviation controls the ee number of elements Angle es controls the feature line and oe Gap Tol Controls whether two mins 050 adjacent surfaces are connected Chordal PRS Angle 20 00 Gap Tol 260 ad Bet DN Pratt Select Surfaces SEI Step Mesh Yes No Exit 6 The mesh will be created and will be displayed in white To accept the mesh click the Yes button when prompted Accept Mesh
19. LTC Advanced 9 There are two methods to run the job 1 Select Full Run Dyna and press OK The solver will now be running in the background 2 For manual submission of the input deck a Select LS Dyna Input File and enter a file name e g training and press Ok b Find the directory that includes your current example file training df you will find training dyn and training mod All files generated by either Dynaform or LS DYNA will be placed in the directory in which the Dynaform database has been saved This includes all input decks and post processing files c Enter Is960 in the terminal then click enter to start the solver Is dyna960 d Input i training dyn then return The solver is now running You will notice that an estimated completion time is given This time is not accurate since we are using adaptive mesh and the model will re mesh several times Also it is influenced the speed and number of CPU of the machine However it does give you a general idea 10 Once the solver has given you the preliminary estimated time you can refresh this estimate by first pressing Ctrl C This will momentarily pause the solver and prompt you to enter sense switch Type the switch command you would like to use and press enter swl Terminates the Solver sw2 Refreshes the Estimated Solving Time sw3 Creates a d3dump Restart File sw4 Creates a d3plot File Note These switches are case
20. NAFORM Quick Setup interface is designed to help the user to quickly setup a standard draw simulation The user is encouraged to learn the traditional more flexible way of setting up a draw simulation Traditional Setup Following the traditional setup procedure is a section on post processing the results whichis applicable to both types of setup DY NAFORM Training Manual 37 TRADITIONAL SETUP Open the saved database file from the meshing section of this manual on page 20 before QuickSetup This file should contain the clean mesh data of the lower tool before it was separated for the QuickSetup procedure If you do not have this file begin the manual again I Offsetting the Lower Tool Mesh to Create the Upper Tool Offset the Lower Tool mesh to create the Upper Tool mesh 1 The first thing you need to do is create a new part called UPTOOL This part will hold the elements that we offset from the LOWTOOL Click Parts gt Create on Menu bar mem Fools Prepri Create Ctr P Edit Add To Part Tur On Current Separate Transparent Summary 2 In the New Part dialogue enter UPTOOL in the name field Click OK and the part will be created 8 ate LJ Sei LOWTOOL P Apply Cancel The part UPTOOL has been created and set as the current part automatically We can now offset elements into this part Turn on LOWTOOL and turn off BLANK LI 3 Select Preprocess gt Elements on the Menu bar
21. To Part Jur On Current Separate Transparent Summary 2 The Select Part window appears Select LOWTOOL and LOWRING in the Select by Name list Click OK to finish the function _ Exclude Total selected LU Displayed All Parts Reject Last Part OK Cancel 3 Save the changes DY NAFORM Training Manual 49 IV Tool Definition Defining Parts as Tools The parts BLANK LI LOWTOOL UPTOOL and LOWRING are all meshed and can now be defined as tools After the parts have been defined as tools we will setup the analysis parameters and start the simulation 1 Select Tools Define Tools on Menu bar Tools Preprocess Anal Define Tools Ctri T Position Tools p Define Blank Ctri B Blank Operation p Material Property Animate Tools On off Summary DYNAFORM Training Manual 50 2 In the Define Tools dialogue select DIE from the Tool Name menu as below 3 Select ADD 4 The Select Part dialogue will be displayed prompting you to select which part will be defined as the DIE Choose UPTOOL from the Select by Name list and then click OK DYNAFORM Training Manual 51 select by Mame _ Exclude Total selected 0 Displayed All Parts Reject Last Part Cancel 5 Return to the Define Tools dialogue You will find the UPTOOL is placed in the Include Parts List 6 Repeat the above steps to define the Punch LOWTOOL and Binder LOWRING Remembe
22. Vue by name Reject wire Frame Rate DY NAFORM Training Manual 74 HL Animating Thickness and FLD PostGL can also animate Thickness FLD and various strain stress To do this refer to the following examples Thickness ale 1 Pick Thickness from the icon tool bar 2 Select All Frames from the Frame Range menu 3 Click Play and the animation will begin Plot State Contour Stress Strain i Undefined Set Contour Ra nge Set Contour Level From Ta d SI Current Component Thickness DYNAFORM Training Manual 75 Pick FLD from the icon tool bar Select All Frames from the Frame Range menu Select Middle from the Current ee DYNAFORM Training Manual Component list Click Play and the animation will begin Plot State FLD bk on Element sl Ihid ngetoroer FLD Curve Option Al Frames D From To FEEF J on 76 IV Plotting Single Frames Sometimes it is more convenient to view single frames rather than the entire animation To do this select Single Frame from the Frame Range dialogue and then select with your mouse the frame you would like to view Refer to the example below in which the FLD plot of the bie frame would be displayed upon pressing Plot Plot State FLE x On Element ie Undeforned FLO Curve Option Single Frame sl From To rer DY NAFORM Training Manual 71 V Writing
23. about Z Axis function The function is shown below D i i i i i i Puni TE Ip T i i i i i pie ee ee 1 1 D Geht DT ff ee gemengten i 1 e vie zg E ee mm 1 ab m pn rn mm mm en pn pn i te en pn rz pm pm m L m ee ee Ld e e e 5 Practice using the other viewing options before moving on DYNAFORM Training Manual 7 HL Turning Parts On Off All geometry in eta D YNAFORM is based on parts Every entity by default will be created or read into a part The user should practice using the On Off function located in the Toolbar S e Falla aslae 4 Dlelglolal iar eas or in the Parts menu Parts Turn On Create Ctrl P Edit Add To Part Turn On Current Separate Transparent Summary 1 Notice the Turn On Off Part dialogue that appears after selecting the Part On Off button Select by Marie Only Select Gn All On All Off Ok Unido Place the cursor over different icons and buttons to learn the name of each function This type of selection menu is common to the eta DYNAFORM environment It provides several different functions for selecting which parts will be turned off or on 2 Since the part BLANK LIN contains only line data you will have to use either the Select by Line or the Select by Name function 3 First use the Select by Line icon to turn off the part BLANK LIN Click on the Select by Line icon and select a line in the part BLANK LIN The part will be
24. an AVI File PostGL has a very useful tool that allows the user to automatically create an AVI movie via an animation screen capture This will be the last function covered in this training case 1 Start a new animation using all available steps 2 Once the animation is running click on the Write AVI File icon located on the Toolbar 3 The Write File dialogue will be displayed Enter a name to save the AVI file under e g traincase avi and click Save Write File Save in LC Traincase x ES File name traincase 7 Dave as type favi r aril sl Cancel Help ie a 4 Enter a frame rate in the prompt dialogue It is recommended to use the default Click Accept 5 Enter a window size in the prompt dialogue Depending on the resolution of your screen you may want to reduce the size of the AVI file by reducing the default height and width Click Accept l Initial Window Width Isi Window Hieght 1137 ate DYNAFORM Training Manual 78 6 Select Build from the menu bar Buil Align Cancel End 7 Select Microsoft Video 1 from the Compressor list and click Ok Select compression format Compressor Microsoft video 1 7 S Compression Dualty 75 Ku E 6S Configure 8 PostGL will now take a screen capture of the animation and write the output More about DYNAFORM 5 0 Inside the DYNAFORM 5 0 installation directory there is a file called DyanformDefault many
25. anual 61 Cure Type amp Motion Forte Cue PUNTRY Show Curve Assign Remove wonn Manual Degrees ofFreedom Coordinate Sica S oggle the Z button on to free the Z direction CSD l 5 travel ORK ORY RZ Ok 4 Choose Velocity as the default Curve Type see illustration below and default Curve Shape as Trapezoidal Keep the beginning time of 0 000E 000 In the Velocity field enter 8000 this is in mm per second For the Stroke Dist use the value that we found after measuring the Punch travel distance and subtracting the Blank thickness The value should be approximately 40 2 After entering the values click Yes and a new Velocity vs Distance motion curve will be created and displayed as shown in the following illustration uve Type ge Velocity SE Displacement z TE Curve Shape Trapezoidal Begin Time o 0000e 000 S E G ean Velocity ong EE Stroke Dist 40 2 inii x CS i tA D a Stop after this phase E 4 E G E E E E F F E F amp WE 20 0 0 0 OR WE 20 E Yes No Cancel ap d Im mi ge 5 Verify that the graph is identical to the graph as shown in previous page DYNAFORM Training Manual 62 6 Select Ok in the Curves dialogue to return to the Tool Load Curve dialogue From here click Ok once more to return to the Define Tools dialogue Do not close this dialogue the next step will start from here XI Defining the Binde
26. e Spread icon press and drag the left mouse button on the Angle Slider to set a small angle Since the Ring surface is flat set the smallest angle you can select e g 1 as one degree DYNAFORM Training Manual 22 OL a See A Ta E ee z BE SPARS eS Ss G eae A Rr SSS SSS s See R SS SS U RK zs e D ee s karg D ring of LOWTO ita T d e CH UI Ka f D Li i 7 Click on any element on the right 23 8 Click any element on the left ring of LOWTOOL DYNAFORM Training Manual All elements in the flat area before an element angle change of larger than 1 degree should be highlighted Compare your display to the preceding image If your results differ repeat the above steps to re select 9 Select OK onthe Select Elements window You will find the number of elements 67 is shown on the left side of the Element s button as below 10 Select the Unspecified button Surface Unspecified Close Aaly To Part DYNAFORM Training Manual 24 11 The Select Part window shows up Select LOWRING in the Select by Name list At this time the Unspecified button will change to LOWRING Select by Name Caricel 12 Click Apply all selected elements are moved into LOWRING Line s Elements SuiTacelsi To Patt LOWERING Close Apply 13 Turn on only LOWRING with Isometric view the resulting display should be as the followi
27. e Data Go to the training input files located in the CD provided along with the DYNAFORM installation Locate two line files die lin and bank bn Then import both files and select OK to dismiss the Import File window DYNAFORM Training Manual 4 T SE Le S After reading in all of the line files switch to the isometric view by selecting the Isometric icon on the Toolbar Verify the display looks the same as the illustration shown above Help File Parts Tools Preprocess Analysis Setup Dlel ioiel a 2 elat ol alee lel cle aeretz Utilities View BSE DFE QuickSetup Note Icons may appear different depending on platform Other functions on the Toolbar will be discussed further in the next section You can also refer to the Dynaform User s Manual for information on all of the Toolbar functions 2 Save the database to the designated working directory Go to File gt Save as type dftrain df and select Save to dismiss the window Database metrics The default unit system for a new eta DYNAFORM database is mm N Second Ton and the draw type is double action toggle draw The user is able to change these default settings from the Setup Analysis menu DYNAFORM Training Manual 5 File Name cittrain ar Save File Type cf Varies File Types Dynaform has the ability to read the following types of input files 8 Abaqus mp 9 Binary bin 10 LS DYNA dyn mod 11 F crash fcr
28. e finer and smaller elements DYNAFORM Training Manual 34 3 In the ADAPTIVE CONTROL PARAMET window edit the LEVEL MAXLVL to be 3 This means that the mesh will split up to 2 times if needed Higher levels of adaptivity will result in better accuracy but require longer processing time Since this is a simple part level 3 will be fine The default values will be used for the remaining parameters Click OK ADAPTIVE CONTROL PARAMET Sle TIMES ENDTIM ADPFREQ bo o DEGREES ADPTOL 5 oo00000E 000 LEVEL MAXLYL 3B sss ADAPT MESH ADPENE 1 OO0000E 000 OK Advanced Dietault Reset Cancel 4 To submit the job select Full Run Dyna and click OK The solver will now be running in the background The solver is now running You will notice that an estimated completion time is given This time is not accurate since we are using adaptive mesh and the model will re mesh several times Also the number and speed of CPU influence it However it does give you a general idea Proceed to page 68 for post processing after the program 1s completed DYNAFORM Training Manual 35 physical mass 1 42 76E f2 Fat io H nt 06 dt of cycle 1 is controlled by shell element 5455 4 HHHRBE HH time step 7 14118E 87 kinetic energy 4H ABHRRE H0 internal energy i H tt 2 Spring and damper energy 1 46HQHE 246 hourglass energy H BHRBHE HH system damping energy 4 BHRRHE HH Sliding interface energy H BHHRHE HH external work 4 HHRRRE HR
29. for the material For example put blankpro for material property If there is a default property name exists user can skip the typing Be DYNAFORM Training Manual 55 sure to select type BELYTSCHKO TSAY default and select any color from Color dialogue Click New ner 4 blankpra BELYTSCHKO TSAY 3 The BELYTSCHKO TSAY Property card will be displayed In this dialogue you can edit the thickness of the material To edit a field left click on the field and change the value in the Current Value dialogue Make sure UNIFORM THICKNESS is 1 000 Leave all other fields at their default values and select OK NO OF INT POINTS ST UNIFORM THICKNESS 1 000000e 000 8 OK Advanced Default WE Reset Cancel 4 DYNAFORM returns to the Property dialogue Click OK 5 Select OK to finish defining the Blank Material and Property DYNAFORM Training Manual 56 Part DL ANkK UI Attribute amp Single Surface Material DASK Property blankpro Include Parts List Add Remove Display VII Tools Summary 1 Verify that all of the needed tools are defined by selecting the Tools Summary function in the Tools menu 2 After you have verified the tooling definition click OK Save the changes Tools sA Is BLANK PUNCH DIE BINDER Dk VII Auto Positioning the Tools Now that all of the tools have been defined
30. g NO will check all elements and reorient as needed to the opposite of the direction that is displayed In other words press YES if you want the normal to point in the direction of the displayed arrow or NO if you want it to be the opposite As long as the normal direction of most elements in a part is consistent program will accept that If half of the total element s normal is pointing upper ward and other half pointing downward program will be confused how to constrain the blank through contact DY NAFORM Training Manual 18 4 Now that the LOWTOOL elements are consistent check the rest of the parts in the database Turn off all the parts and turn each one on by itself Check the normal direction and make sure it is consistent 5 Once all the normal directions are consistent turn on all of the parts and save the changes Display Model Boundary This function will check the mesh for any gaps or holes and highlight them so you can manually correct the problem 1 Select Display Model Boundary from the Model Check dialogue window 2 Minor gaps in the tool mesh are all right Blank mesh should not contain any gaps unless the blank is lanced or is designed with gaps Select the isometric view and make sure that your display looks like the one following i n na ee o T KOCH Dr E Om T SES i e Sank echt ge 3 Now turn off all of the parts Note the boundary lines are still displayed This allows you to inspect any
31. left side of the Element s button as below 24 Select the Unspecified button Add TO Pare E Linets Elementis l Surmacetsj To Fart Unspecified Clase Areal 25 The Select Part window shows up Select LOWRING in the Select by Name list At this time the Unspecified button will change to LOWRING Selectby Name Lance 26 Click Apply all selected elements are moved into LOWRING DYNAFORM Training Manual 47 Linen Apply 27 Turn on only LOWRING with Isometric view the resulting display should be as the following If the result differs please repeat the above steps 28 Save the changes to your initial database and make a note of this file name We will use this file later in this training manual to perform a manual setup Now use the Save As function to save this as another duplicate database that we will use for the QuickSetup portion of this manual The new database name and directory path should be displayed in the upper right portion of the DY NAFORM interface DYNAFORM Training Manual 48 If Separate LOWRING and LOWTOOL Now LOWRING and LOWTOOL have two different groups of elements but they share common nodes along the boundaries We need to separate them so that LOWRING and LOWTOOL can move independently Let s turn on LOWRING and LOWTOOL and turn off other parts 1 Click Parts Separate on the Menu bar seh Tools Prepr Create Ctri P Edit Add
32. m This Select Line dialogue window allows you to select the line s in different ways Place the cursor over each icon and button to identify its function 4 Select OK after selecting all four lines 5 Use the default variable 6 0 for the concerned tool radii This number reflects the tightest radii in the model The smaller the radii the finer the blank mesh a larger value will result in coarser mesh x 6 000000 Back 6 After you have entered the variable press OK A Dynaform Question dialogue prompts Accept Mesh Cancel MEE Accept mesh ves ue ReMesh Press YES to accept the mesh If you have entered an incorrect value click on the ReMesh button to correct the concerned tool radii value and accept the mesh or No to cancel it and repeat the above steps to re mesh 7 Compare your mesh with the following picture DYNAFORM Training Manual 14 8 Save the database II Meshing Surface Data Most of the meshing done in eta Dynaform is carried out using the Surface Mesh function This function will automatically create a mesh based on the provided surface data This is a very quick and easy way of meshing the tools 1 Turn off the part BLANK LI and turn on the part LOWTOOL Set the part LOWTOOL as current 2 Select Preprocess gt Elements on Menu bar mie Analysis Set Line Point Ctri l Surtace Chr Element Ctri E Node Etrit Mesh Repair Clap Model Check
33. material type 36 and 37 are recommended for most simulations S Dynaform Material Library Strength Level Material Name Tye 1 ELASTIC 8 POWER High Acance High Hot Rolled PL el Pu Pa LUNEAbR b b eloo FLO TRA RATE_SENM 3 Select OK to use the default material parameters following image for the DQSK material model note ETA makes no guarantees as to the validity or accuracy of the generic material DYNAFORM Training Manual 54 models in the material library Users should contact their material suppliers to determine material parameters at Perce MATERIAL TITLE MASS DENSITY YOUNGS MODULUS POISSONS RATIO HARDENING RULE EXPON MATERIAL PARAM P1 K MATERIAL PARAM P2 IN lol SI DASK sis 7 8900006 009 2 070000E6 005 2 800000E 001 2 000000E 000 5 550000E6 002 EXPONENT FACE M 6 000000E 000 1 750000E6 000 id 1 520000E6 000 1 870000E 000 Ok Advanced Default Reset Cancel VI Define Blank Property LANKFORD PARAM POO LANKFORD PARAM Ras LANKFORD PARAM Dat 1 The Define Blank dialogue should still be open click on the button just right of where it says Property This button will say None because the property has not been defined yet Part BLAME LI Attribute amp Single Surface DASK Material Property None Include Parts List Add Remove Display 2 Inthe Property dialogue enter a name
34. nch and the Die and display it in the Distance dialogue _Select Master Tools BLANK Select Slave Tools Direction Distance 41 200 3 The total distance between the Punch and the Die is approximately 41 2 To find the Punch travel distance subtract the Blank thickness We will obtain a Punch travel distance of approximately 40 2 Take note of the number you calculated 4 Select OK located at the bottom of the Min Distance dialogue and end this step DYNAFORM Training Manual 60 The automatic distance measurement is reliable for flat binders For more complicated binder shapes the user should measure the travel distance using the distance measurement tool between nodes found under the Utilities menu X Define Punch Velocity Curve 1 Click Tools Define Tools on the Menu bar 2 Select Die from the Tool Name list and then select the Define Load Curve button Standard Tools e User Defined Tools Tool Mame Punch Liser Define Tools Name See Preprocess Anal Define Tools Etri T Position Tools p Draw Bead rop Blank Generator Define Blank Ctri B Define Contact Blank Operation p Material Property Include Parts List Animate Tools On off Summary Offset fram Mating Tool Ok 3 Click on Auto Make sure the Z is selected as the Degrees of Freedom to define the moving direction Use the default curve type Motion see the following illustration DYNAFORM Training M
35. ng If the result differs please repeat the above steps DYNAFORM Training Manual 25 14 Save the changes H QuickSetup interface 1 Select the QuickSetup menu QuickSetup Draw Die MIuUIckKSetup HE l H File Parts Tools Preprocess Analysis Setup Utilities View ASE DFE SE g Gravity Loading e Craw Die Spring Back ao Raed 2 As shown in the following QS menu the undefined tools are highlighted in red The user needs to select the draw type and available tool first for this application the draw type is Single action or Inverted draw The available tool is the lower tool DYNAFORM Training Manual 26 ro Erari Type Single action inverted draw Lower Tool Available el Lower Toal gt Blank Parameters Material Thickness 0 00 m Tool Control Tool Travel Velocity 5000 00 Binder Close Velocity 2000 00 cx Lower Binder Force Auto Assign Constraint ndate Beads Advanced Help Apply Reset Gulea H 1 Exit 3 Define the blank and tools by selecting the appropriate buttons IL Define Tools The parts LOWTOOL and LOWRING are meshed and can now be defined as the Binder and Lower Tool respectively To define the Binder 1 Click on the Binder button then select Add from the Define Binder window 2 Select the part name from the part list LOWRING DY NAFORM Training Manual 27 Jox Select Part le
36. on the tool bar just as we did in the pre processor Pej B Q s3 41x G S S S S SU wla View Manipulation 6 Try adjusting the frame rate by clicking the Frame Rate button in the Control Options window Sometimes it is necessary to reduce the frame rate if the animation moves too fast Control Options Continue Advance Frame Reverse Frame OFF ON by Name OFF by mouse Reject ONMOFF Wire by mouse Ve by name Frame Rate D 7 come eee ee ee CT se DY NAFORM Training Manual 12 7 You will be prompted to enter a new frame rate Enter 5 and select Accept F ZE E Cancel End Notice the change in the speed of the animation Adjust the frame rate until you find it acceptable 8 Another way to control the speed of the animation is to process the frames manually To do this select either the Advance Frame or Reverse Frame button in the Control Options Dialogue Then move the mouse pointer into the display area and left click Notice the frames will advance or reverse one at a time Control Options Continue Reverse Frame OFRON by Name OFF by mouse Reject ON OFF Wire by mouse Wire by name 73 Frame Rate DY NAFORM Training Manual 9 When you are done viewing the animation click on Stop in the Control Options dialogue Control Options Lantitue Advance Frame Reverse Frame OFF ON by Name OFF by mouse Reject OMAJF F Wire by mouse
37. r LOWRING Force Curve Now that the Punch travel curve has been created we can create the force curve for the Lower Ring 1 From the Define Tools dialogue select Binder from the Tool Name menu and select the Define Load Curve button Wm Cl Tool Load Gy Gs Standard Tools Curve Type gt ser Defined Tools ee j S Mohon Tool Name Binder User Define Tools Name Cure LOBNTR Show GHE fe Assign Remove Read Modi Au Manual Degrees orFreedom Coordinate aatal GSD g OH oY P Remove Display C est from Mating Tool Lal Ok 2 Select Curve Type Force Make sure to select Z to define the moving direction and then click on Auto ORK ORY 3 Enter 200000 N in the FORCE and close the window by clicking OK DYNAFORM Training Manual 63 Begin Time 0 000e 000 Force 200000 End Time egeve 003 Ok Cancel 4 The Lower Ring force curve will be displayed Verify that it is identical to the curve shown as below 7 DOP BE BABES LGE EE ABBE a DE j bech ZB 85 BINDER FORCE DEEL 85 Eech DD a Di Ti BBBE B4 BBBE 04 i 2 DR BM D opt AA H BADE BA 6 BB D4 IK E 1 BB0E 83 Z 4B8E B3 3 DDD 87 ER E d Z00E 03 d 8005 83 LE E BBBE B3 TIME BINDER FORCE LOAD CURVE 5 Select OK in the Curves dialogue to return to the Tool Load Curve dialogue
38. r to select the correct Tool Name in Step 2 7 Once you have all of the tools defined click OK on the bottom of Define Tools dialogue to finish this step Save the changes V Defining the Blank and Setting up Processing Parameters Define the Blank 1 Select Tools Define Blank onthe Menu bar DYNAFORM Training Manual 52 SIE Preprocess Anal Define Tools Crit Position Tools gt Draw Bead Ctr B Blank Generator Define Blank Ctri 6 Blank Operation gt Material Property Animate Tools On off summary 2 Click on the Add button in the Define Blank dialogue Materal Hong Select by Name Property More Include Parts List _ Exclude Total selected 0 Displayed All Parts Reject Last Part or cawet 3 The Select Parts dialogue is displayed Select BLANK LI from the Select by Name list 4 Click OK The BLANK LI is added in the Include Part List as shown below Define the Blank Material 1 The Define Blank dialogue should still be opened click on the button located right next to material DYNAFORM Training Manual 53 e Single Surface Material Property Plot with Gotor of l Material co Part Material hey hoaite elete Import Export Material Library 2 Select Material Library A list of materials will be shown as in the illustration below In this dialogue select the mild steel DQSK under material type 36 note
39. raditional model setup such as travel curves The following table outlines the major differences between the QuickSetup and the traditional DYNAFORM setup procedure QuickSetup Traditional Automated interface limits flexibility Manual interface can duplicate any tooling configuration pads multiple tools etc Reduces modeling setup time Requires more setup time Automated travel curves Manual definition of travel curves Contact Offset Geometrical Offset Note This manual is intended for the application of all DYNAFORM platforms Platform interfaces may vary slightly due to different operating system requirements This may cause some minor visual discrepancies in the interface screen shots and your version of DYNAFORM that should be ignored DY NAFORM Training Manual 3 DATABASE MANIPULATION L Creating an eta DYNAFORM Database and Analysis Setup Start Dynaform 5 0 For workstation linux users enter the command df50 default from a UNIX shell For PC users double click the Dynaform 5 0 Icon from the desktop After starting eta Dynaform a default database Untitled df is created Users will begin by importing CAD files to the current database Import files 1 From the menu bar select File gt Import Look in Documents and Settings qhe My Documents dftrain oO V E H blank In In ee die In Im FileName Import OK Cancel File Type Line Data ini Change the file format to Lin
40. sensitive and must be all lower case when entered DY NAFORM Training Manual 67 Enter sw2 and press Enter Notice the estimated time has changed You can use these switches at anytime while the solver is running added mass percentage increase J 8009E 80 1 EGQ9E 80 at 1 TS1GE 84 dt 1 CHE T a i dt 1 56E 06 36E 0G SEE 06 56E 06 input of data is completed 115 t 1 7918E 645 dt 1 56E 06 initialization completed 29 t 3 5823E 04 dt 1 fio E 3 38236 04 GE 1 ZE ZE input of dat A if Gonpleted 2i3 t 3 5823E 64 dt 1 09E 06 initialization completed 233 t ee enter sense switeh sw j OGO0OE 00 SEGGE 00 flush i o buffers write d3plot file Write adaptivity stress file add shell elements from 1033 ta Flus A 1o buffers write adaptivity stress file 4dq shell elements from T3952 t flush i o buffers write d3plot file When you submit a job in eta DYNAFORM an input deck is automatically created which the solver LS DYNA uses to process the results The default input deck names are your database name den and your database name mod The dyn file contains all of the control cards and the mod file contains the geometry data Advanced users are encouraged to study the dyn input file For more information refer to the LS DYNA User s Manual LS DYNA pdf Note All files generated by either eta DYNAFORM or LS DYNA will be placed in the directory in which the eta DYN
41. small gaps that might be hard to see when the mesh is displayed The results are shown in the following picture DYNAFORM Training Manual 19 4 Check for overlapping elements and minimum element size Delete those elements if there are any 5 Turn only the part LOWTOOL back on and click onthe Clear icon on the Toolbar to remove the boundary lines Fie Parts Tools Preprocess Anahysls Setup Utilities view BSE DEE GuirkSewp Help N 6 Save your database QuickSetup vs Traditional Setup At this point the model setup depending on whether the user is going to do a QuickSetup or a tradtional setup begins to vary Save the changes to your initial database and make a note of this file name We will use this file later in this training manual to perform a manual setup Now use the Save As function to save this as another duplicate database that we will use for the QuickSetup portion of this manual The new database name and directory path should be displayed in the upper right portion of the DY NAFORM interface This manual will first detail the QuickSetup process then the traditional setup Skip to the Traditional Setup portion page 38 of this manual if you are already familiar with the QuickSetup interface and analysis setup procedure DYNAFORM Training Manual 20 QUICKSETUP Before entering the QuickSetup interface we will need to separate the binder run out lower ring from the lower tool This will allow the QuickSetup
42. t the function Animat tte Individual Frames a Frames Secand Stop 4 Save the database DYNAFORM Training Manual 65 XIII Running the Analysis Now that we have verified that the tool motion is correct we can define the final parameters and run the analysis Running the Analysis with Adaptive Mesh Adaptive mesh allows the user to obtain more accurate results by refining the blank mesh as needed during the simulation In other words as the die deforms the blank areas that demand a finer mesh to capture the tooling geometry will divide to create finer and smaller elements 6 Select Analysis Run LS DYNA from the Menu Bar Oe Setup MUNITIES wie Analysis Ctri A Cutput New Dynain File 7 Now click the Control Parameters button in the Analysis Parameters dialogue ex Analysis Type Full Run Dyna Control Parameters Gravity Load Dynain Output Seamless Jempi H Parameters Adaptive Mesh Ada otive Parameters Specify Memory Wamitila Egi Op g g Title Termination Time 0 006980 oe ome DYNAFORM Training Manual 66 8 AS a new user it is recommended to use the default control parameters for more information on them please refer to the LS DYNA User s Manual Click OK DYNASD CONTROL PARAMETER l is TERMINATION TIME ENDTIM 6 980000E 003 TIMESTEP DT2M5 1 994300E 007 PARALLEL NCPU STATES IN D3PLOT DP
43. to read in the d3plot file once From then on you can use the PostGL pp file The user also has the option of simply using the d3plot files each time to look at the results without compressing them in the pp file After moving to the directory where you saved the Dynaform database be sure you have the correct file of type selected pick the d3plot file and press Open Look in Sjtaincsse sl E Eil gi Filename J cet Open l Files of type LS D YNA Posti d3plot to PP file sl Cancel Help The d3plot file is now completely read in You are ready to process the results a Animating Deformation In the Plot State dialogue select Deformation In the Frame Range dialogue select All Frames and then press Play The results will be animated Shade the results by pressing the Shade Model button near the bottom of the screen Current visual Layer 0 e Since it is difficult to see the Blank with all of the other tools displayed you can turn them all off except for the Blank In the Control Options dialogue select OFF ON by Name DY NAFORM Training Manual 70 Control Options Advance Frame Reyerse Frame OFF by rouse Reject ON OFF Wire by mouse Wire by name Reject wire Frame Rate otop 4 Turn off all of the parts except for the Blank and press Ok Hultiple Selection Part Hames DYNAFORM Training Manual 71 5 You can also change the view with the view manipulation icons
44. turned off DY NAFORM Training Manual 8 4 Next use the Select by Name function and select BLANK LIN from the list in the window In the Select by Name window the parts that are turned on are displayed in their color and the parts that are turned off are displayed in white 5 Before we continue verify that all available parts are turned on Select the All On button from the Turn On Off Part dialogue 6 After you have turned all the parts on click the OK button on the Turn On Off Part dialogue This will end the current operation IV Editing Parts in the Database The Edit Part command is used to edit part properties and delete parts Create Ctrl P Edit Add To Part Turn On Current Separate Transparent Summary 1 From the above menu click on the Edit button The Edit Part dialog dialogue will be displayed with a list of all the parts that are defined in the database The parts are listed with the part name and identification number From here you can modify the part name ID number and part color You can also delete parts from the database DYNAFORM Training Manual 9 2 Select the part DIE S from the part list Change its color by clicking on the Color button and selecting a new color from the palette lolx Select by Name Only Select On All Op All Off o ug 3 Select the part DIE S from the part list Change the Name by inputting LOWTOOL in the field as shown below
45. we need to place them in the correct position by doing the following 1 Turn on all of the parts in the database and select the isometric view 2 Click Tools Position Tools Auto Position on the Menu bar DYNAFORM Training Manual 57 Preprocess Analysis Setup CtritT eal e Co Auto Position 0 Move Tool Define Tools Position Tools Draw Bead b ri Blank Generator Define Blank CL Blank Operation p Material Property Animate Tools On off Summary 3 The Auto Position Tools dialogue will be displayed In this dialogue define the Master and Slave Tools The Master Tool is the tool that will not move while you Auto Position it should be the Blank Select BLANK in the Select Master Tool dialogue and then select the remaining tools in the Select Slave Tools dialogue For the PC version the user needs to hold down the control key to select all three slave tools Slave Tools PUNCH DIE BINDER Method Single Side Check Double Side Check Single Side Check Double Side Check Direction Coordinate Global Direction Coordinate Glotal CS E en er zs Contact Gap iT Vents _Apply CS ID o ox SF 2 Contact Gap d Lt WVEM BNE Undo DYNAFORM Training Manual 58 Once the correct Master and Slave Tools are selected be sure that Z direction is selected as the moving direction and enter a Contact Gapof 1 The gap
46. with the illustration shown on the following page DY NAFORM Training Manual 32 Running the Analysis V Now that we have verified the tool motion is correct we can define the final parameters and run the analysis Select Submit Job to display the Analysis dialogue window shown on the following page Click on the Control Parameters button in the Analysis Parameters dialogue l 33 DYNAFORM Training Manual Analysis Analysis Type Full Run Dyna Control Parameters Gravity Load Dynain Output amp Seamless Implicit Parameters Adaptive Mesh Adaptive Parameters Defined Tools Only File e Specify Memory Weronis 64000000 Title I Termination Time 0 006015 OK Cancel 2 AS anew user it is recommended that you use the default control parameters for more information on them please refer to the LS DYNA User s Manual Click OK DYNA3D CONTROL PARAMETER TERMINATION TIME ENDTIM 6 015000E 003 TIMESTEP 0 T2M3 1 718571E 007 PARALLEL WCPU STATES IM GSPLOT OORT OK Advanced Default Reset Lance Return to the Analysis dialogue again By default the Adaptive Mesh parameters will be checked on 3 Select Adaptive Parameters Adaptive mesh allows for more accurate results by re meshing the blank as needed In other words as the die deforms the blank areas that demand a finer mesh to capture the tooling geometry will divide to creat
47. x Select by Cursor PER Select by Name Include Part List BLANK LI 2 _ Exclude Total selected i Bitti All Parts Reject Last Part Repeat the same procedure to define the Lower Tool Once both tools have been defined the color should change to green as shown in the following illustration DYNAFORM Training Manual 28 Draw Type Single acon frete dra j L ower Tial Avatlabk Lowar Tool Blank Parameters atonal Thickness Tool Contral Taal froot We locity Binder close alochi Co Lower Binder Forte Auto Assign Corabraint pisie Gas Advanced Help bpp Rasat Eni IV Defining the Blank Material kuch Select the Blank button select add then pick the blank part name 2 For the blank the user needs to define the material and thickness For the blank thickness the user can enter the number in the thickness field in this case we will use the default 1mm 3 The blank material can be selected from the Material Library under the material definition window The Material Library will be shown as in the image below Select the mild steel DQSK under material type 36 note material type 36 and 37 are recommended for most simulations DY NAFORM Training Manual 29 te Dynaform Material Library strength Level Material Name ELASTIC POWER LINEAR S PARAM ANISOTR FLO_TRA RATE GEN

DYNAFORM 5.0

Contents

Download Pdf Manuals

Related Search

Related Contents