Workshop2SimulatetheCrushingofanEmptySodaCan WorkshopGoalandProcedure Goal Crushanaluminumbeveragecanandallowitto springback Procedure CreateanExplicitDynamics ANSYS AnalysisSystemProjectSelecttheunitssystemanddefinethematerialpropertiesImport modify andmeshthesodacangeometryDefineanalysissettings boundaryconditions andexternalloadsInitiatethesolution AUTODYN STR andreviewtheresults Step1 CreatetheProjectSchematic StartANSYSWorkbenchandfollowthesequencedstepsusingtheabbreviationsshownbelow DC DoubleClickwithLeftMouseButtonSC SingleClickwithLeftMouseButtonRMB RightMouseButtonSelectionD D DragandDrop HoldLeftMouseButtondownonitemwhiledraggingittonewlocationandthenreleaseit i e CopyorMove DC 1 CreateanANSYSExplicitDynamicsAnalysisSystemProject Step2 SpecifytheProjectUnits 2 aSelectMKSfortheProjectUnitsfromtheUnitsListprovided2 bRequestthatNativeApplicationsinWorkbenchhavetheirvaluesbeDisplayedintheProjectUnits2 cCheckthoseunitsystemstoSuppressfromappearingintheUnitsList Note EngineeringDataisnativeinWorkbench butMechanicalisNOTatthistime butwillbeinthefuture Step3 DefineEngineeringDataMaterial 3 aEdittheEngineeringDatacelltoaddamaterialtothedefaultlibrary 3 bSelectthelastslotunderEngineeringDatatodefineanewmaterialmodel SC 3 cEntermaterialmodelname My Aluminum Note AnexistingmaterialmodelintheExplicitMaterialslibrarycouldhavebeenselected buttherearerestrictionsonelementtypesthatcanbeusedwithcertainmaterialmodels whichwillbediscussedlater DC DC DC DC Step3 DefineEngineeringDataMaterial SC 3 eAddthefollowingPhysicalPropertiestothematerialdefinition DensityIsotropicElasticityBilinearIsotropicHardening 3 dMakesurethenewmaterialisactiveinordertodefineitsproperties Step3 DefineEngineeringDataMaterial 3 fEnterthefollowingvalues Density 2710kgm 3Young sModulus 7e10PaPoisson sRatio 0 30YieldStrength 2 9e8PaTangentModulus 0 0PaSincethematerialissufficientlydefined thebluequestionmarksandyellowfieldsarenolongerpresentinthedatatable Note Theresultingstress straincurveiselastic perfectlyplastic Nostrainhardeningcandevelop Step3 DefineEngineeringDataMaterial 3 gReturntotheProjectSchematic3 hSavetheProjectbyselectingthe SaveAs iconandBrowsetothedirectoryindicatedbyyourinstructor Usethename empty soda can fortheProjectname Note SavingtheProjectsavesalloftheimportantfiles TheProjectmayalsobeArchived inwhichallofthesupportingfilesarecompressedandsavedinonefile Step4 ImportandModifytheGeometry 4 cWorkbenchhasnowidentifiedthegeometryfile notegreencheckmarkinGeometrycell ItisnowOKtoDoubleClickon Geometry asthenewdefaultactionistoEditthegeometry DefaultactionsareshowninboldtypeafterRMBselects RMB SC 4 aImportthegeometrybytheprocedureshown DoNOTDoubleClickonthe Geometry cell 4 bBrowsetotheDesignModeler11 0SP1geometryfilenamed soda can filled 110 agdb RMB SC Step4 ImportandModifytheGeometry 4 dSuppressthesolid Soda andthesurfacebody Hole RMB SC 4 eGeneratethechangesinthegeometry Althoughadditionalmodificationscouldbemade butnoneareneeded 4 fSavetheentireProjectviatheDM Save icon Step5 EdittheModelinMechanical 5 aEditthemodelinWorkbenchMechanical SinceEditisthedefaultaction double clickingontheModelcellisalsoacceptablehere RMB SC 5 bSelecttheMKSUnitssystemRecallthatMechanicalisnotnativeinWorkbench sotheUnitsheremaynotmatchtheProjectUnitsNote Althoughtheunitsystemusedfordataentryandpost processingistheMKSsystem theactualunitsystemusedbytheAUTODYNsolveristhemm mg mssystem becauseitprovideshigheraccuracy ThiswillbeshownlaterwhentheAnalysisSettingsarediscussed Step5 EdittheModelinMechanical RigidSteelPunch moveddownwards FlexibleAluminumSodaCan crushed RigidSteelDie fixed 5 cDefinetheAluminumCanproperties StiffnessBehavior FlexibleThickness 0 00025metersMaterialAssignment My Aluminum 5 dDefinethePunchandDieproperties StiffnessBehavior RigidMaterialAssignment StructuralSteel Step5 EdittheModelinMechanical 5 eReviewtheContactspecifications Keepcontactdefinitiondefaults 5 fSavetheProject Note ThereisnoSaveiconinMechanical Step6 SetSizingControlsandMeshModel 6 dOrientthemodeltoselectthe8edgesthatdefinethecancircumferences withtheLeftMouseButton UsetheCtrlkeyformultipleselections asneeded 6 aSelecttheMeshbranch6 bSpecifytheMeshDetails PhysicsPreference ExplicitElementSize 0 010meters6 cChoosetheEdgeselectionfilter RMB anywhere 6 eWiththe8edgesstillhighlighted Insert RMBanywhereongraphicsscreen anEdgeSizing SC SC Step6 SetSizingControlsandMeshModel 6 fSpecifytheEdgeSizingDetails Type NumberofDivisionsNumberofDivisions 36Behavior Hard6 gGeneratetheMesh RMBoneitherMeshbranchorEdgeSizingbranch RMB SC Meshview Step7 DefinetheAnalysisSettings 7 aSpecifytheAnalysisSettings EndTime 6 0e 4secondsAutomaticMassScaling YesMinimumCFLTimeStep 1 0e 7sec SC 7 bSettheSolveUnits mm mg msNote Themm mg msunitsystemisthemostaccurateinmostsimulations soitistheonlyonecurrentlyavailable Althoughmoresolverunitsystemswillbeavailableinthefuture anyunitsysteminthedrop downlistmaybeusedtoenterdataand ordisplaytheresults Step7 DefinetheAnalysisSettings 7 cKeeptheremainingd