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1、WORKSHOP5StiffenedPlateSubjectedtoPressureLoadWorkshop5StiffenedPlateModelGOAL:modelastiffenedpanelusingplateelementsforthepanelandBEAMelementsforthestiffenerWorkshop5(cont.)StiffenedPlateModelWewillmodelaplatewhichis0.1inchesthick,20.0incheslong,and10.0incheswide.T
2、hestiffenerisshownbelow,alongwiththeplatedimensionsandloadingThemodelhaspinnedsupportsatthecornersWorkshop5(cont.)StiffenedPlateModelMaterialproperties:E=10.3E+6psiPoissonsRatio=.3Density=.101lb/in3(weightdensity)ThestiffenerwillbemodeledusingaBEAMwithaPBEAMLtodefin
3、ethecross-sectionTheGRIDpointswilllieatthemid-planeoftheplate,sotheBEAMmustbeoffsetfromtheGRIDpointsby1.05(halftheBEAMheightpushalftheplatethickness)Workshop5(cont.)StiffenedPlateModelWorkshop5(cont.)StiffenedPlateModelPBEAMLEntryPBEAML,2,1,,I,2.,1.,1.,.1,.1,.1Sampl
4、eCBEAMCBEAM21231320.0.1.0.0.1.050.0.1.05Workshop5(cont.)StiffenedPlateModel-PressureLoadDefinitionPressureloadsonplateandshellelementsaredefinedusingPLOAD2orPLOAD4entriesSID=StaticLoadingSetIDEIDi=ElementIDP=Pressure(appliedinelementcoordinatesystem)PLOAD2,1,-.5,1,T
5、HRU,20Workshop5(cont.)SuggestedExerciseSteps:CreateafiniteelementmodeloftheplatemadeofCQUAD4elements.ThestiffenerismadeofBEAMelement.Definematerialproperties.(MAT1)DefineelementpropertiesandsectionalpropertiesusingtheBEAMlibrary.Applyloadsandboundaryconditionstothem
6、odel.SubmitthemodeltoMSC.Nastranforanalysis.Post-ProcessresultsusingMSC.Patran.CreatethefirstsurfaceGeometry:Create/Surface/XYZ.Enter<2050>fortheVectorCoordinateList.Use[000]astheOriginCoordinateList.ClickApply.Step1:CreateFiniteElementModelabcdCreatethesecondsurfac
7、eGeometry:Create/Surface/XYZ.Leave<2050>astheVectorCoordinateList.ClickintheOriginCoordinatesListboxandscreenpickpoint2astheorigin.Step1:CreateFiniteElementModelabcCreatemeshseedsthatwillbeusedtoguidethemesh.Elements:Create/MeshSeed/Uniform.FortheNumberofElements,in
8、put5.SelectSurface1.2astheCurveList.Step1:CreateFiniteElementModelSurface1.2Surface1.1Surface2.1abcRepeatthepreviousprocedurestocreate2mor
