中心带圆孔方板均匀受压的模拟分析报告

1、材料成型软件应用课程上机报告之二题目：中心带孔方板均匀受压的模拟分析报告专业：材料成型及控制工程班级：2014级学号：2014姓名：上机报告之二：ANSYS结构静力分析实例 一、问题描述已知一块中心带圆孔的正方形钢板，边长为200mm,中心圆孔直径为50mm,常温下受拉力q=50N/mm,厚度为t=2mm,弹性模量为E=2.06xl05MPa,泊松比v=0.3，屈服应力为Os=235Mpa,密度为7.84X10-6kg/m3。如图1所示：图1二、问题分析因为中心带圆孔的正方形钢板对称,所以简化分析1/4个正方形钢板即可。在ANSYS建模时,以正方形钢板两边中线为基准,将方板均匀分成4部分,选取

2、其中一部分进行分析,如图2所示：三、模拟计算过程1、定义文件名称GUI：UtilityMenuFileChangeJobname在弹出的对话框中，在输入栏中输入Square-hole。2、参数选择GUI：MainMenuPreferences操作后弹出对话框，选择structural，单击OK。如下图3所示。图33、定义单元GUI：MainMenuPreprocessorElementTypeAdd/Edit/Delete操作后弹出对话框，单击Add按钮。在弹出的对话框中左边选择StructuralSolid右边选择Brick8node185单元，单击OK,如图4所示:图44、定义材料属性GU

3、I：MainMenuPreprocessorMaterialPropsMaterialModels操作后弹出对话框，选择StructuralLinearElasticIsotropic,弹出对话框，在EX中输入2.06e5,PRXY中输入0.3，单击OK。如图5所示:图5再选择FavoritesLinearStaticDensity，弹出对话框，在DENS中输入7.84e-6，单击OK,如图6所示:图6选择StructuralNonlinearInelasticRateIndependentIsotropicHardeningPlasticityMisesPlasticityBilinear，

4、弹出对话框，在YieldStrs（屈服强度）中输入235，单击OK。如图7所示：图75、建立几何模型建立正方形：GUI：MainMenuPreprocessorModelingCreateAreasRectangleByDimensions弹出对话框，输入X1,X2,Y1,Y2为0,100,0,100,单击OK。如图8、图9所示:p2lq|(9|a|创r|H壬乞ZJToolbarSAVEDB|RESUIDB|QUIT1POfRGRPHile2*1set航lotPlotQtrlslorkPlaneParametersaerolenuCtrlsHelprroferences田()/lodify(R

5、ECTHGjCreateRectanglebyDinnemionaX1.X2X-coordintes|Pickamenuitemorenteraconarnnd(PREP7)|matsl|typsl|real3l|csyss0|secn=lBlatenalPropsfflSectionsBlodelinBCreateSKeypoints田LinesHAreasSArbitrary日RectangleBy2Corners71BiCentrBCircleSPolygonAreaFillBt田Voluaes田Nodes田ElementsSCnntactPairACr4PreprocessorMode

6、lingCreateCircleSolidCircle弹出对话框，输入Radius=25，单击OK。如图10、图11所示:图10图11从正方形中减去圆形：GUI：MainMenuPreprocessorModelingOperateBooleanssubtractAreas出现拾取框，选中正方形，单击OK,再次出现拾取框，选中圆，单击OK。如图12、图13、图14所示：獰ANSYSMidpkydMElieSelectLittElotPlotQtrlsforkPlantPartrsIacroouCtrltHelp_DgToolbarsave_db|resu_db|quit|POfRCRPH,Ia

7、inMenuraelJJ回回型回回AJQQAJAJT1一一匀丄釧ElPrefernces曰Preprocessor9EleaentType日RealConstantsSlaterialProps3SectionsSlodelingIBCreate曰Operata田EitrudeEitandLi曰Booleans日Interse3AddBSubtractVoIujhb戸LinesfflWithOptionsSDivide日GlueSOverlp田love/lodifysCopyfflRefloct图12AEileSlctListElotPlotCtrlflorkPlaneParamtersIac

8、roReQuCtrl*HelpSubtractAreasGVlekOnick(SingleC*oafPolygonCircl*QhoopiMaw1m!2H：nlwuw11LLatot:EtnaMin,Max.IncLOKApply|SABAtC*ae*lIPlekXll|1t3XToolbarANSYS曰lodeliru：田EitrudeExtendLine5VithOptifflDivide田Glue田OverlapSPartitionBScale田CalcGeoaItens田love/Iodify田Copy田ReflectSubtractAreasFickQQhp&clt1OK|Apply

9、|BaetICancel|PickAllIH*lp|i旦冋SAVKARESUmlquit|porgrph|OX_dJh刨團剑mJmlzl|212tToolbarlsave_db|resui_db|QUIT1porgrph|fileSelectListflotPlotQtrlsorkPlanePaxanetersIacroRenuCtrisHelpSPreferencRs田love/lodifv田Copy田Ruf1wet3VithOptionsDivideSGlueSOverlapBPartition图13AANSYSMultiphysksUtilityMenu(Squr-ho4)lodelin

10、gSCreate曰Operate田Eitrude7sExtendLine曰Booleans图14拉伸图形：GUI：ModelingOperateExtrudeAreasByXYZOffset输入0,0,2OK,使图形由长方形变为长方体，如图15、图16、图17所示：kin.enuE3Preferences二BPreprocessor田ElomntTypeERealConstants田laterilProps田Sections曰lodelingSCreateOperateBExtrudeElenExtOptsBAreas戸AlongHcrntal尸，袒扁足irnffinAboutAxis戸Alo

11、ngLinesSLines田Keypoints戸ExtendLine田BooleansfflScale9CalcCeonIteas田ove/lodifySCopy田Reflect田CheckGeoa田Delate田CyclicSectorQCISQGenlpianostrn二J2JExtrudeAtmbyOffsetPick广unpickBo*PolyvoarClxcleCount1Maxuusi1”,n,wma1aHa.3(ofItnsCMia,1Uk,laeIOKI|asa：T：ICUlSAlIPickAlli昨|Tde|的9|巴|I回Iial注这里入你要損索的内容八ileSelectis

12、tlotPlottrlsVorkPlaneParameterslacrolenijCtrlsyelpJ0|刨越賈StJI5tToolbarsave_db|resui_db|quit|roRGRPH|il图15料ANSYSMuttiph/FrileSelectListElotPlotCtrlsforkPlanePaxaneterslacTOXeivXtrlsHelpLsi旦创刨色I剑jj團ToolbarSAVEJIB|RgSUlJ)B|QUIT|POfRGRPH|AN5Y5(VEXTEximdeAreasbyXYZOffsetDXDV.D2Offsetsfotextrusiono田Eleaent

13、TypERealConsta:田laterialPropsSectionsBlodelingBCreateOperate曰ExtrudeEleaExtOpts曰Areas戸AlongNoraal尸AboutAxisAlonsLinosLines田KeypointsExtendLi田Booleans01ScaleIBCalcGeoaItensQlove/lodifyGJCopyQ)ReflectfExtrudeAreasbyXYZOffirtXYZOffsetRXRVRZSeal*factors|ll在这里袒入翊潑素的内言图16AANSYSMultiphysicsUtilityMenu(Squa

14、re-hole)FileSelectListPlotPlotCtrlsVorkPlaneParanetersMacrolenuCtrlsHelpDXOQ5)归艮3英IDJ誌O图176、划分网格GUI:MeshingMeshToolGlobalSetSIZEElementedgelength2.5OKMesh如图18、图19、图20所示：FileSelectListPlotPlotCtrlsloorkPlanePraneterslacroMenitrlsHelp-SXD|G|Q|t3St團1MehToolToolbarElemeniAHnbUm1save_db|resui_db|QUIT1por

15、grph|Glabd_*J$=|厂SirartSueSizeConbok;GtobaidJFir*6Coaiain.enu2JJ/GlobalElementSize%ANSYSA14.SMkY4201*71S：4：S3ESIZEGlobalelementsizesanddivisions(appliesonlytounsized*lines)SIZEElementedgelengthND1VNo.elementdnrisions-(usedonlyifetemertedelength,SIZE,isblankorzero)CancelIBPreferences二曰Preprocessor田El

16、ewntTypeRealConstants田latarialPropsSJSections田lodeling日leshingSshAVlributesSSizeCntrlsSlesherOptsSConcatenateSleshffllodifyleshBCheckleshSClear田CheckingCtrls3NuerinsCtrl#田Archivelodel01Coupling/CeqnSJlulti-fieldSetOp田Loads田Physics田PathOperations田Solution田GeneralPostproc田TiBeHistPostproSKOIToolaProbD

17、esign二ANSYSIVIESHPick田EleaentType田RealElate:(SSect田lodelinxleshinR9TjfSWi(3SiZACntrlrMeshVolumes介PackrDnplck(i(*BexPolygonCCircleCLoop图18田lodifyleshEChscklush(BClsar田CheckingCtrls田KunboringCtrlsEArchivelodel田Coupling/Ceqn(Blulti-fieldSetUdELoads田PhysiQPath(9Solution(9GeneralPostprocSTineHistPostpraE

18、)R()lToolE)ProbDesign图19/ANSYSMukiphyticsUtltyMenu(Square-hotelOEileSelectListElotPlotQtrlsforkPlanePaxuneters|acrolenitrlsHelpToolbarsave_db|resui_db|QUITIpoirgrphISElenentTypeSRealConstantsBlaterialPropsBSectionsSlodeling曰1eshingSlashAttributosOConcatenate田lh田lodifylushSChecklesh3ClearSCheckingCtr

19、lsaHimberinsCtrlsSArchivelodel日Coupling/Ceqn13lultifieldSetlhSLoadsSPhysics0PathOperationSSolution(3GenerPostprocBTiaeHistPostproKOIToolBProbDesign图207、添加载荷PreprocessorLoadsDefineLoadsapplyDisplacementoneAreas如口图21、图22所示:图21图22PreprocessorLoadsDefineLoadsSettingsReplacevsAddconstraints在选择UX，Addtoexi

20、sting如图23所示：E.11*ElotPlotCtrlVorkPlan*ParamtrRacroRvnuCtrl*HlpToolbarSAVEDBRESUIRFACTScalefactorTBASEBatemperature-(DOJMJOprNewDOFvalunwill旦T|田ElenentTypRealConstants(laterialProps田Sectionsblodeling田lashingCheckingCtrlsENumberinsCtrlsE)Archivelodel田Coupling/CeqnOlulti-fieldSetUpsLoads9Ana1ysisTypeDe

21、fineLoadsBSetting-EBUniforaTeapQSurfacsLoadsNodalBodyLdQElsaBodyLdsSResetFactorsQSaoothDataR)Apply田DeleteARepUce/AddSettingforDOFSfLDCUMReplace/AddSettingforDOFContfrainte(DOFSfLJDOBtobeHectedutdfortc*npr*turOOFonly下一步骤同理，如图24、图25、图26图23图24AANSYSMultiphysicsUtilirMenu(Square-hole)0XID回同刨國剑jJMMeshToo

22、lElementAttributes：Toolbar|savedb|resumdb|QUITIpowrgrph|ISmaitFileSelectListPlotHElementType0RealConstantsEMaterialPropsE)SectionsEModeling0HeshingHCheckingENumberingUtrlsE)ArchiveModel0Coupling/CeqnElMulti-fieldSetUpSApplyStructural洌OnModesOnModeCowcHSymmetryB.C.HAntisymmB.C.SForce/MomentApplyU,ROT

23、onAreasDAApplyDisplacementsJU,ROT)Lab2DOFstobeconstrainedIfConstantvaluethen:VALUEDisplacementvakSet|Clear|旦ear|get|ear|两|Flip|get|ear|旦ear|VolumesFTelCHex广MappedSweep|3or4sidedJ图25天ANSYSMullipliyuctUtilityMenu(Square-hole)Set|SetDCVMIOperNewDOFvaJuctRFACTScalefactor(DOFSEq(DCUM)Rephce/AddGettingfor

24、DOFConstraint!DOFDOHtobaffvcted厂SwitSizs出FineElieSelectListElotPlotQtrlslorkFlanePaxuneterslacrohouCtrlsUelpANSYSI|VdumM3ShapeSRnferenceTonp田ForSurfaceLdBReplacirAddSForcesSSurfaceLoadsSNodalBodyLdSEIbbBodyLdsSResetFactorsBSnoothDatafflApplyfflDelete|m4t=l|type=l|real=l|csy=0|secn=1到血创型型railraeJeJJL

25、J回回JJJLoadsDefineLoadsapplyPressureonAreas选择两个面单击OK在弹出对话框中VALUE处输入-25，如图27、图28所示:AEileSelectListElotPlotQtrliforkPlaneParameterslacroleouCtrlsHelpJtfJW刨副剑團dz5taToolbarlSAVE.DbIRESUIJ)B|QUIT1POBGRPH|il丄ain_lenu.BPreferencesEJPreprocessorSElemntType日RealConstantslaterialPropsSSections9lodeling3lashing

26、CheckingCtrls冋NumberingCtrls曰Archivelodel曰Coupling/Ceqnlulti-fieldSetUpSLoadsSAnalysisTypeBDefineLoads田SettinssApply8StructuralSDisplac0*unlBForce/loaent曰Pressure戶OrjUies尹戸OnNodesPOnNodeCoapc戸OnElementsf*OnElHMBnlCcBFrontFluidArPOnBeansJj|丄J图27AEileSelectListElotPlotQtrlsforkPlaneP&iuneters|acrolegi

27、trlselp商旦回创剖剑21l3囱到创ToolbariToqISAVE_DB|RSU1_D6|Qn|POfRCRPHElenwitAJlibubes:|Gktd3SetSEleaentTypeEJRealConstants日latRrialProp*BSectionsSlodeling回1eshingsCheckingCtrlsSWuaberinsCtrlsBArchivelodelSCoupling/CeonE)lulti-fieldSetUp曰LoadsE)AnalysisTypeBDefineESetti曰ApplyBStructuralSDisplacemnt戸OnNodesOnNo

28、deCaapcPOnElewntsOnBleaentCr5FroaFlu：J3OnIfConstantvaluethereVALUELoadPRESvalue1SFAApplyPWE58rM4SLKEYLodkey.usu*yf*ceno.(requiredonlyforshelelements)厂SmartSimJFnSizeConiioteGlobalLrmKe肿T如IO|TM袖|Vofcmt3peTe(rHewA,OP则固英Bl期;阳口图289、求解：GUI:SolutionAnasysisTypeNewAnasysis对话框中选择StaticOK如图29所示SolutioSloveCu

29、rrentLS，结果如图30所示：图29图30四、模拟结果分析1、等效应力：GUI:GeneralPostProcPlotResulcontourplotNodalSoluStressvonMisesstressOK如图31、图32所示：图31图32从图32可知，应力出现在中心圆孔的周围，沿着圆半径向外方向，应力逐渐减小，靠近圆孔中心的等效应力最大，其值为53.0669Mpa，边缘处的等效应力最小，最小值为24.9479Mpa。2、等效位移：GUI:GeneralPostProcPlotResulcontourplotNodalSoluDOFSolutionDisplacementvectorsumOK,如图33、图34所示：图33图34从图34可知，在靠近中心圆孔部位的等效位移比较小，最小值为0.15034mm,沿着圆孔直径往外离圆孔越远等效位移越大，角落处等效位移最大，最大值为0.19722mm。3、应变：GUI:GeneralPostProcPlotResulNodalSoluElasticStrainvonMiseselasticstrainOK，如图35、图36所示：图35/ANSVSMuttiphyu