WS8C-1WORKSHOP8CTENSIONCOUPONNAS120,Workshop8C,January2005Copyright?2005MSC.SoftwareCorporation
ProblemDescriptionAtensioncouponisconstructedfromaluminumwithE=10x106psiandn=0.3Thecouponthicknessis0.125inAnedgeloadof50lbisappliedtothetensioncoupon
50lb10in4in2.0DIAHole
WorkshopObjectivesBuildthetensioncoupongeometryControlthemeshbyusingtechniquesdiscussedinclassCompareFEAstressresultstotheoreticalresultsFrom“StressConcentrationFactors”byR.E.Peterson,Figure86: smax=432psi
SuggestedExerciseStepsCreateanewdatabase.Createageometrymodelofthetensioncoupon.UseMeshSeedstodefinethemeshdensity.Createafiniteelementmesh.Verifythefiniteelementmesh.Definematerialproperties.Defineelementpropertiesandapplythemtothemodel.Applyboundaryconditionstothemodel.Applyloadstothemodel.SubmitthemodeltoMSC.Nastranforanalysis.PostProcessresultsusingMSC.Patran.
abcdefgStep1.CreateNewDatabaseCreateanewdatabasecalledtension_coupon.dbFile/New.Entertension_coupon_casthefilename.ClickOK.ChooseDefaultTolerance.SelectMSC.NastranastheAnalysisCode.SelectStructuralastheAnalysisType.ClickOK. a
Step2.CreateGeometryCreatetwoarcsGeometry:Create/Curve/2DArcAngles.Enter0fortheStartAngle.Enter45fortheEndAngle.Enter[520]fortheCenterPointList.ClickApply.Repeattheprocedurewith45astheStartAngleand90astheEndAngle.abcde
Step2.CreateGeometryCreatetwomorecurves.Geometry:Create/Curve/XYZ.Enter020fortheVectorCoordinatesList.Enter[720]fortheOriginCoordinatesList.ClickApply.Repeattheprocedureusing200asthevectorand[540]astheorigin.abcd
Step2.CreateGeometryCreatetwosurfacesGeometry:Create/Surface/Curve.Screenpickthetopcurveasshown.Screenpicktheupperarc.Screenpicktherightcurveasshown.Screenpickthelowerarc.Turnondisplaylines.abced