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WORKSHOP7METALFORMINGAPAPERCLIP ModelDescriptionThisworkshopillustratesacommonmetal formingprocessbysimulatingtheshapingofthefamiliarandcommonplacepaperclip Therearemanywayofproducingthepiece Thisexercisemakesuseofsimple straightforwardmovementsofrigidbodies ObjectiveIllustratesettingupamulti stepanalysisandtheuseofrigidsurfaceschargedwithshapingamalleableworkpiece RequiredNosupportingfileisrequiredforthisproblem SuggestedExerciseStepsCreatetheworkpiece Createwellappropriatedrigidsurfaces Fixtheinnerendoftheworkpiece CREATENEWDATABASE Openanewdatabase NameitPaper clip dbFile NewEnterPaper clip dbasthefilename ClickOK SelectMSC MarcastheAnalysisCode ClickOK a Paper clip b MSC Marcq d e 10 0 c Structuralq Step1 Geometry Create Surface XYZ UsetheXYZmethodtocreateasurfaceGeometry Create Surface XYZ EnterasVectorCoordinatesList Enter 4 9 09375 0 asOriginCoordinatesList f UsetheXYZmethodtocreatecenterpoints Geometry Create Point XYZ Enter991forPointIDList UncheckAutoExecute Enter 0 49125 0 0 forPointCoordinatesList ClickApply Repeatstepsa eforeightadditionalpointsasshowninthetable Step2 Geometry Create Point XYZ ThePointIdMUSTmatchwiththePointCoordinatesabove AllthePointIdsareforlateronuse MakesureyouhaveEXACTLYthesameIdnumbersandcoordinatenumbers h Byturningonthepoint curvelabelcontrol itwillbecomeeasiertoidentifyeachpointandcurvewhenselectingthem Youshouldbeabletoseethepointsyouhavejustcreatedalongwiththeirpointlabels ClickLabelControl SelectboththePointandCurveoptions b CreatethecurvesGeometry Create Curve 2DCircle SelectAnypointicon Enter0 09375forCircleRadius ClickintheCenterPointListpanel SelectPoint991 ClickApply Repeatstepsc fforeightadditionalcurvesasshowninthetable Step3 Geometry Create Curve 2DCircle Step4 Elements Create Mesh Surface CreatethemeshElements Create Mesh Surface SelectIsomeshforMesher ClickinSurfaceListpanel UseSurfaceorSolidFacepickingicon SelecttheSurface1 UncheckAutomaticCalculation Enter0 02forValue ClickApply d ClickingApplycreatesthemesh e Step5 Loads BCs Create Contact ElementUniform CreatecontactdeformablebodyLoad BCs Create Contact ElementUniform SelectDeformableBodyforOption EntertouchyforNewSetName Select2DforTargetElementType ClickSelectApplicationRegion SelectGeometryforGeometryFilter ClickinSelectSurfacespanel SelectSurfaceorfaceicon Selectthesurface ClickAdd ClickOK ClickApply h i Step6 Loads BCs Create Contact ElementUniform CreatecontactrigidbodyCreate Contact ElementUniform SelectRigidBodyforOption EnterD1forNewSetName Select1DforTargetElementType ClickInputData SelectPositionforMotionControl EnterforDisplacement vector ClickOK ClickSelectApplicationRegion SelectGeometryforGeometryFilter ClickinSelectCurvespanel SelectSurfaceorFaceicon SelectCurve1 ClickAdd ClickOK Click Apply Repeatstepsa pforeightadditionalcurvesasshowninthetable l m Step7 Fields Create Material TabularInput Createafieldfortheelasto plasticmaterialdata Fields Create MaterialProperty TabularInput EnterworkhardforFieldName UncheckTemperature SelectStrain e ClickInputData EnterStrainfieldasgivenbythetable ClickOK ClickApply g The1DMaterialScalarTableDataformneedstobefilledoutasshowninTable1 Tofillinthetable clickonthecellyouwishtoedit enterthevalueintheInputScalarDataboxandandpressReturn Thetablewilltabdownautomatically f Step8 Materials Create Isotropic ManualInput Createthematerialaluminum 1100 withelasticandplasticpropertiesMaterials Create Isotropic ManualInput EnterSteelforMaterialName ClickInputProperties SelectElasticforConductivityModel Enter3E7forElasticModulus Enter0 3forPoisson sRatio ClickOK ClickApply a b c h ThematerialconstituitivemodelusedinthisanalysisisanIncompressibleMooneyRivlinhyperelasticformulation MakesurethattheanalysiscodeissetforMSC MarcunderPreferences Analysis ClickInputProperties SelectPlasticforConstitutiveModel SelectIsotropicforHardeningRule ClickinStressvs PlasticStrainpanel SelectworkhardinTemperature Strain StrainRateDependentFieldswindow ClickOK ClickApply j k l workhard workhard m Step9 Properties Create 2D 2DSolid DefinetheelementpropertiesProperties Create 2D 2DSolid EnterworkpieceforPropertySetName SelectPlaneStressforOption s SelectStandardFormulation ClickInputProperties ClickinMaterialNamepanel SelectSteelfromMaterialPropertySets Enter0 035forThickness ClickOK ClickinSelectMemberspanel SelectSurface1 ClickAdd ClickApply k Step10 Loads BCs Create Displacement Nodal CreatetheBoundaryConditiontofixtherightedgeLoads BCs Create Displacement Nodal EnterEndforNewSetName ClickInputData EnterforTranslations ClickOK ClickSelectApplicationRegion SelectGeometryforGeometryFilter ClickinSelectGeometryEntitiespanel SelectCurveorEdgeicon Selecttherightedgeofsurface ClickAdd ClickOK ClickApply i j Step11 LoadCase Create CreateloadcasesLoadCases Create SelectDefaultinExistingLoadCaseswindow EnterOneasLoadCaseName ClickinScaleFactorforact2 Enter0forInputScaleFactor Repeatstepsd eforact3 act6 ClickOK ClickApply Repeatstepsa hforfiveadditionalloadcasesnamedTwo Three Four Five andSix EachtimeselectthepreviousloadcaseandenterthenewnameasLoadCaseName Also changethescalefactoroftheact2 act6Load BCcorrespondingtothenewloadcaseto1 leavingtheotherScaleFactorsunchanged forexample caseTwoact1 act2ScaleFactorsequal1 act3 act6ScaleFactorsequal0 Step12 Analysis Analyze EntireModel FullRun SetupandlaunchtheanalysisAnalysis Analyze EntireModel FullRun EnterPclip job1asJobName ClickTranslationParameters ClickSolverOptions SelectNon PositiveDefinite ClickOK ClickOK ClickLoadStepCreation EnterS1forJobStepName ClickSelectLoadCase Selectloadcaseone ClickOK ClickSolutionParameters ClickLoadIncrementParameters SelectAdaptiveforIncrementType SelectNoneforArclengthMethod Enter33forNumberofCutbacks Enter0 025forTrialTimeStepSize ClickOK ClickIterationParameters Enter50forMax ofIterationsperIncrement Enter5forDesired ofIterationsperIncrement ClickOK ClickContactTable RemoveallT sinthetableexceptforrows2 D1and5 act1 ClickOK ClickOK RemovetheT sinthefirstcolumnbydoubleclickingonthem Youdon thavetoworryaboutalltheT sinthehorizontaldirection becausetheyaresymmetricwiththeverticaldirectionT sasweareusingtwo waycontact ClickApply SelectS1 EnterS2forJobStepName ClickSelectLoadCase ClickLoadcasetwo ClickOK ee ByclickingonS1alldataiscopiedfromS1 ThereareonlysomeminorchangesforS2 ClickSolutionParameters ClickContactTable ii Thecontacttablewillpopoutandyoucanchecktoseeifthepreviousstepsweredonecorrectly TheContactTableshouldlookliketheonecreatedpreviously ClicktoaddTforboth3 D2and6 act2 ClickOK ClickOK ClickApply ll mm Repeatstepsbb lltocreateContactTableswithJobStepnamesS3 S4 S5andS6 EachtimeclickonthelastJobStepcreated thenchangetheJobStepNametothenewJobStepname Thenselectthecorrespondingloadcase NoticethatonlythelasttwoAct rigidsurfacesarekeptineachstep AlsonoticethattheD3rigidsurfaceisaddedinJobStepS4 nextslide andkepttogetherwithD1andD2inthesubsequentJobSteps ClickCancel ClickLoadStepSelection SelectjobstepsS1 S6inorder thendes
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