ABAQUS显隠转换分析报告

.2.1TransferringresultsbetweenAbaqusanalyses:overviewProducts: Abaqus/StandardAbaqus/ExplicitAbaqus/CAEReferences“TransferringresultsbetweenAbaqus/ExplicitandAbaqus/Standard,”“Transferringresultsfromone“TransferringresultsbetweenAbaqus/ExplicitandAbaqus/Standard,”“TransferringresultsfromoneAbaqus/Standardanalysistoanother,”“TransferringresultsfromoneAbaqus/Explicitanalysistoanother,”*IMPORT*IMPORTELSET*IMPORTNSET*IMPORTCONTROLSINSTANCE“Transferring resultsbetweenAbaqusanalyses,” Section16.6oftheAbaqus/CAEUser'sManualOverviewAbaqusprovidesthecapabilitytoimportadeformedmeshanditsassociatedmaterialstatefromAbaqus/StandardintoAbaqus/Explicitandviceversa.Thiscapabilityisparticularlyusefulinmanufacturing problems;forexample,theentiresheetmetalformingprocess(whichrequiresaninitialpreloading,forming,andsubsequentspringback)canbeanalyzed.InthiscasetheinitialpreloadingcanbesimulatedwithAbaqus/StandardusingastaticprocedureandthesubsequentformingprocesscanbesimulatedwithAbaqus/Explicit.Finally,thespringbackanalysiscanbeperformedwithAbaqus/Standard.Abaqusalsoprovidesthecapability totransferdesiredresults andmodelinformationfromanAbaqus/StandardanalysistoanewAbaqus/StandardanalysisorfromanAbaqus/Explicit analysistoanewAbaqus/Explicit analysis, whereadditionalmodeldefinitionsmaybespecifiedbeforetheanalysisiscontinued.Forexample,duringanassemblyprocessananalystmayfirstbeinterestedinthelocalbehaviorofaparticularcomponentbutlaterisconcernedwiththebehavioroftheassembledproduct.Inthiscasethelocalbehaviorcanfirst beanalyzedinanAbaqus/StandardorAbaqus/Explicitanalysis.Subsequently,themodelinformationandresultsfromthisanalysiscanbetransferredtoasecondAbaqus/StandardorAbaqus/Explicitanalysis,whereadditionalmodeldefinitionsfortheothercomponentscanbespecified,andthebehavioroftheentireproductcanthenbeanalyzed.Forthiscapabilitytowork,thesamereleaseofAbaqus/Explicit andAbaqus/Standardmustberunoncomputersthatarebinarycompatible.ABAQU可以从隐式计算结果到显示计算进行分析， ，该问题在求解一些问题是非常有用的，例如薄钢的锻造过程(经历预加载，成形和回弹)，该分析预加载可以通过 std分析，锻造过程可以通过XPT进行分析，最后回弹可以再用 std进行分析。ABAQUS也提供了从隐式分析到隐式分析和从显示分析到显示分析， 例如可以先对感兴趣的局部构件进行分析， 分析完成后，在对整个结构作分析，前部的分析结果可以传到后面的整体分析中。SavingtheanalysisresultsTherestartfilesfromtheoriginalanalysiscontaintheanalysis resultsthataretransferredfromAbaqus/StandardorAbaqus/Explicit.Obtainingrestartfilesisdescribedinmoredetailin“Writingrestartfiles”in“Restartingananalysis,”Section9.1.1;briefsummariesareprovidedbelow.Bydefault,Abaqus/Standarddoesnotwriteanyrestart information andAbaqus/Explicitwritesresultsatthebeginningandendofeachstep.SavingresultsfromAbaqus/StandardIftheresultsaretobeimportedfromanAbaqus/Standardanalysis,theresultsfromtheoriginalAbaqus/Standardjobmustbewrittentotherestart(.res),analysisdatabase(.mdland.stt),part(.prt),andoutputdatabase(.odb)files.Youcanspecifytheincrementsatwhichrestartinformationwillbewritten.RestartinformationisalwayswrittenattheendofastepinadditiontotherequestedincrementswheneveryourequestrestartdatainAbaqus/Standard.InputFileUsage: *RESTARTWRITE,FREQUENCY=保存分析结果重启动文件包含了之前分析的信息，关于重启动的描述参阅" Writingrestartfiles”in“Restartingananalysis, ”Section9.1.1 ;下面做简要介绍，默认情况下, std不保存重启动文件，xpt在每个分析部开始和结束步保存重启动文件 。Std结果保存如果想从std分析后获得结果，原始的std分析必须保留重启文件 (.res)，分析数据(.mdland.stt)，PART(.prt),和输出数据(.odb)文件，用户可以指定具体的重启位置，重启信息除了在请求的位置输出外在每一分析步的最后也将输出。Input File*RESTARTWRITE,FREQUENCY=nUsage:Abaqus/CAEStepmodule:Output―<RestartRequests:enterninthe FrequencyUsage: columnforeachstepXpt结果保存如果想要从某一时刻输入 xpt分析的结果，则必须在原始的结果文件中保存 .abq状态文件，状态文件重启文件数据文件，PART文件和结果文件共同用来从 xpt分析后的结果作为输入。可以具体指定是否精确的时间输出 xpt重启文件，因为xpt会在每个分析步的最后给出重启文件。Input FileUsethefollowingoptiontorequestresultsattheincrementsendingUsage: immediatelyaftereachtimeinterval:*RESTARTWRITE,NUMBERINTERVALS,TIMEMARKS=NOUsethefollowing optiontorequestresultsattheexacttimeintervals:*RESTARTWRITE,NUMBERINTERVALS,TIMEMARKS=YESAbaqus/CAEStepmodule:OutputRestartRequests:enternintheNumberIntervalUsage: column;clicktochecktheTimeMarkscolumnforeachstepifyouwanttheresultswrittenattheexacttimeintervalsSavingresultsfromAbaqus/ExplicitIftheresultsaretobeimportedfromanAbaqus/Explicitanalysis,theresultsfromtheoriginalAbaqus/Explicitjobmustbewrittentothestate(.abq)fileatthetimewhentransferofthestateofthedeformedbodyisrequired.Thestate(.abq),restart(.res),analysisdatabase(.stt),package(.pac),part(.prt),andoutputdatabase(.odb)fileswillbeusedforimportingtheresultsfromAbaqus/Explicit.Youcanspecifywhethertheresultsaretobewrittenattheexacttimedictatedbythespecifiedtimeinterval, n,duringastepofanAbaqus/Explicitanalysisorattheincrementendingafterthetimedictatedbythespecifiedtimeinterval.Resultsarealwayswrittenattheendofastep,soitisnotnecessarytorequestresultsattheexacttimeintervalsifresultswillbereadonlyfromtheendofastep.Input FileUsethefollowingoptiontorequestresultsattheincrementsendingUsage: immediatelyaftereachtimeinterval:*RESTARTWRITE,NUMBERINTERVALS,TIMEMARKS=NOUsethefollowing optiontorequestresultsattheexacttimeintervals:*RESTARTWRITE,NUMBERINTERVAL^,TIMEMARKS=YESAbaqus/CAEStepmodule:OutputRestartRequests:enternintheNumberIntervalUsage: column;clicktochecktheTimeMarkscolumnforeachstepifyouwanttheresultswrittenattheexacttimeintervals指定模型数据的传递和结果下面讲解如何指定具体的输入请求，从一个模型数据和结果输入到另一个模型数据和结果，用户可以输入从没有被定义成装配件的实例的 elementset，或者可以输入part实例从已经定义成装配件实例的 part实例。在CAE里面仅仅能从装配件的构件实例中输入模型。指定从elementset 中输入数据和结果。输入的例子参见“Springbackoftwo-dimensionaldrawbending,”Section1.5.1oftheAbaqusExampleProblemsManual,and“Axisymmetricformingofacircularcup, ”Section1.3.7oftheAbaqusExampleProblemsManual 。Input Usethefollowingoptiontoimportelementsetsfromapreviousanalysis:FileUsage:*IMPORTlistofelementsetsthataretobeimported为了阻止模棱两可的单元和节点， *import必须在定义额外模型数据前指定，另外 *import只能指定一次每个elementset的名字在*import 输入行必须在原始文件的截面定义中使用过，(e.g.*solidsection)，elementset 仅能包含不超过三种类型的单元。在CAE里面只能从PARTINSTANCES!面输入结果和数据如果输入的超过一个partinstance,part instanee必须从一个结果文件里输入且输入的参数必须和输入文件partinstances里面的一致，每个instanee的名字应该保持一致，只有importinstanee 里面的sets才能被输入，sets在assemblies定义的必须在import分析中重新定义，重新定义的 sets不能修改输入的新截面，材料的方向，法线，和梁方向Input FileUsethefollowing optionstoimportapartinstaneefromapreviousUsage: analysis:INSTANCEINSTANCESnstanee-nameAdditionalsetandsurfacedefinitions(optional)*IMPORT*ENDINSTANCEAbaqus/CAEInAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsUsage: thataredefinedasassembliesofpartinstances.Loadmodule:CreatePredefinedField:Step:Initial:chooseOtherfortheCategoryandInitialStatefortheTypesforSelectedStep:selecttheinstancestowhichtheinitialstateshouldbeassignedSpecifyingthetransferof modeldataandresultsTheimportcapabilityisusedto transfermodeldataandresultsfromoneanalysistoanother.Thefollowing sectionsdescribehowtospecifytheimportrequest.Youcanimportelementsetsfrommodelsthatarenotdefinedasassembliesofpartinstances, oryoucanimportpartinstances frommodelsthataredefinedasassembliesofpartinstances.InAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsthataredefinedasassembliesofpartinstances.Specifyingthetransferofmodeldataandresultsformodels thatarenotdefinedasassembliesofpartinstancesYoucanimportelementsetsfromapreviousanalysistospecifythetransferofmodeldataandresultsformodelsthatarenotdefinedasassembliesofpartinstances.Thisimportcapabilityisillustratedin “Springbackoftwo-dimensionaldrawbending,”Section1.5.1oftheAbaqusExampleProblemsManual,and“Axisymmetricformingofacircularcup, ”Section1.3.7oftheAbaqusExampleProblemsManualInput FileUsethefollowing optionstoimportapartinstaneefromapreviousUsage: analysis:INSTANCE,INSTANCE=instance-nameAdditionalsetandsurfacedefinitions(optional)*IMPORT*ENDINSTANCEAbaqus/CAEInAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsUsage: thataredefinedasassembliesofpartinstances.Loadmodule:CreatePredefinedField:Step:Initial:chooseOtherfortheCategoryandInitialStatefortheTypesforSelectedStep:selecttheinstancestowhichtheinitialstateshouldbeassignedIdentifyingtheanalysisfromwhichthedatawillbeobtainedYoumustspecifythenameofthejobfromwhichthemodelandresultsdatawillbeobtained.InputFile Forallmodelsyoucanenterthefollowinginputonthecommandline:Usage:abaqusjob=job-nameoldjob=oldjob-nameIftheoldjobparameterisomitted,Abaquswillpromptforthejobname(see “Abaqus/Standard,Abaqus/Explicit,andAbaqus/CFDexecution, ”Section3.2.2 ).Alternatively,formodelsdefinedasassembliesofpartinstances,youcanusethefollowingoption:INSTANCELIBRARY=oldjob-nameIfyouimportmorethanonepartinstanee,the oldjob-namespecifiedbytheLIBRARYparametermustbethesameforeachimportedpartinstanee.Ifthejobnameisspecifiedonthecommandlineusingtheoldjoboption,thecommandlinespecificationwilltakeprecedeneeovertheLIBRARYparameter.Abaqus/CAEInAbaqus/CAEyoucanimportmodel dataandresultsonlyfrom modelsUsage: thataredefinedasassembliesofpart instances.Loadmodule:CreatePredefined Field:Step:Initial: chooseOther fortheCategoryandInitialState fortheTypesforSelectedStep: Jobname:output-database-name从包含的数据文件中指定分析数据

必须具体制定包含数据和结果文件的名字InputFile Forallmodelsyoucanenterthefollowing inputonthecommandline:Usage:Importingmodeldata"Updatingtheimportedconfiguration”)"Updatingtheimportedconfiguration”)”).In("Orientations, ”Section2.2.5),"Importingthematerialstatehourglassstiffnessbutnothourglasscontroldefinitions,andtransverseshearstiffness definitions (inthecaseofshellelements)oftheimportedelementscanalsoberedefined.Forotherreferenee configuration andmaterialstatecombinations, theinformationrequiredto definethesection foreachimportedelementwillbeimportedfromtheoriginal analysis. Materialorientations cannotberedefinedintheimportanalysis;orientationnamescannotbereusedintheimportanalysis.Forimportedelements,thematerial orientations willbetransferred fromtheoriginal analysis. Transverseshearstiffnessforimportedshellelementscannotberedefined;thevalueswillbetransferredfromtheoriginalanalysis.HourglassstiffnessfortheimportedelementscannotberedefinedinanAbaqus/Standardimportanalysis;thedefaultvalueswillbeused.Thesectioncontroldefinitions(kinematicformulation, orderofaccuracyintheelementformulation,andhourglasscontrol approach)tobeusedforimportedelementscannotberedefined(see “TransferringresultsbetweenAbaqus/ExplicitandAbaqus/Standard, ”Section9.2.2 ,fordetails).Onlynodesassociatedwiththeimportedelementsareimported.Newnodescanbedefinedintheimportanalysis.Nodesorelementsthatusethesamenumbersasnodesorelementsbeingimportedcanbedefinedprovidedthatthereferenceconfiguration isupdated,thematerialstateisnotimported,andtheimportisnotdonefromaninstancelibrary.Thenewdefinitions willoverwritetheimporteddefinitions.Ifthereferenceconfigurationisnotupdated,newnodesorelementscannotusetheimportednodeandelementnumbersirrespectiveofwhetherornotthematerialstateisimported.Duringresultstransfer fromanAbaqus/StandardanalysistoanotherAbaqus/StandardanalysisorfromanAbaqus/ExplicittoanotherAbaqus/Explicit analysis, thecoordinates ofimportednodescanbemodified fromtheirimportedvaluesbyrespecifyingthenodaldefinitionsifthereferenceconfigurationisupdatedandthematerial stateisnotimported.Thismodificationofthecoordinatesofimportednodesisnotallowed during transferofresultsfromAbaqus/ExplicittoAbaqus/Standardorviceversa.ImportingmodeldatadefinedbyadistributionWhile transferring resultsfromoneAbaqus/Standard analysis to anotherAbaqus/Standard analysis,mostelementormaterialpropertiesdefinedbyadistribution(see “Distributiondefinition, ”Section2.7.1 )areimportedalongwiththeelements. Theonlyexceptions arespatiallyvarying thicknesses andorientationanglesdefinedonthelayersofcompositeshellsandsolids;inthiscaseAbaqusissuesanerrormessageduringinputfilepreprocessing.WhiletransferringresultsfromanAbaqus/ExplicitanalysistoanAbaqus/Standardanalysis,theonlyspatiallyvaryingelementpropertiesdefinedbyadistributionthatcanbeimportedareshellthicknessesandsectionorientationsforshellandsolidelements.Ifanyotherelementormaterialpropertiesaredefinedwithadistribution,Abaqusissuesanerrormessageduringinputfilepreprocessing.WhiletransferringresultsfromanAbaqus/StandardanalysistoanAbaqus/ExplicitanalysisorfromanAbaqus/ExplicitanalysistoanotherAbaqus/Explicitanalysis,theonlyspatiallyvaryingelementpropertiesdefinedbyadistributionthatcanbeimportedareshellthicknesses, sectionorientationsforshellandsolidelements,orientation anglesdefinedonthelayersofcompositeshells,andsectionstiffnessmatricesspecifieddirectlyforgeneralshellsections.Ifanyotherelementormaterialpropertiesaredefinedwithadistribution, Abaqusissuesanerrormessageduringinputfilepreprocessing.ImportingresultsfromanAbaqus/Standardanalysis(otherthanadirectcyclicanalysis)IftheresultsareimportedfromanAbaqus/Standardanalysis,youcanspecifythestepandincrementintherestartfileforwhichtheresultsaretobeimported.Bydefault,theresultswrittenattheendoftheanalysisareimported.InputFile*IMPORTSTEP=step,INCREMENT#ncrementUsage:Formodelsthataredefinedasassembliesofpartinstances, the*IMPORToptionmustappearwithinapartinstancedefinition.Abaqus/CAEInAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsUsage: thataredefinedasassembliesofpartinstances.Loadmodule:CreatePredefinedField:Step:Initial:chooseOtherfortheCategoryandInitialStatefortheTypesforSelectedStep:selectinstances:Step:selectSpecify:stepandFrame:selectSpecify:incrementImportingresultsfromanAbaqus/StandarddirectcyclicanalysisIftheresultsareimportedfromadirectcyclicanalysis,youcanspecifythestepanditerationnumberintherestartfileforwhichtheresultsaretobeimported.Bydefault,theresultswrittenattheendoftheanalysisareimported.InputFile*IMPORTSTEP=step,ITERATION=iterationUsage:Formodelsthataredefinedasassembliesofpartinstances, the*IMPORToptionmustappearwithinapartinstancedefinition.Abaqus/CAEInAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsUsage: thataredefinedasassembliesofpartinstances.Loadmodule:CreatePredefinedField:Step:Initial:chooseOtherfortheCategoryandInitialStatefortheTypesforSelectedStep:selectinstances:Step:selectSpecify:stepandFrame:selectSpecify:iterationImportingresultsfromanAbaqus/ExplicitanalysisIftheresultsareimportedfromanAbaqus/Explicitanalysis,youcanspecifythestepandintervalinthestatefileforwhichtheresultsaretobeimported.Bydefault,theresultswrittenattheendoftheanalysisareimported.InputFile*IMPORTSTEP=step,INTERVALSntervalUsage:Formodelsthataredefinedasassembliesofpartinstances,the*IMPORToptionmustappearwithinapartinstancedefinition.Abaqus/CAEInAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsUsage: thataredefinedasassembliesofpartinstances.Loadmodule:CreatePredefinedField:Step:Initial:chooseOtherfortheCategoryandInitialStatefortheTypesforSelectedStep:selectinstances:Step:selectSpecify:stepandFrame:selectSpecify:intervalUpdatingtheimportedconfigurationOncethecurrentmodelconfiguration ofanAbaqusanalysisisimportedintoAbaqus/ExplicitorAbaqus/Standard,theanalysiscanbecontinuedwithorwithoutupdatingthereferenceconfigurationtobetheimportedconfiguration.Ifthe

reference configuration isnotupdatedtobetheimportedconfiguration, thedisplacementsandstrainsarereportedastotalvaluesrelativetotheoriginalreference configuration andwill,hence,becontinuous. Ifthereferenceconfiguration isupdatedtobetheimportedconfiguration, displacementsandstrainsreportedintheimportanalysis arethetotalvaluesrelativetotheupdatedreferenceconfiguration.Thischoiceisusefulifresultsneedtobedisplayedrelativetotheimportedconfiguration,suchasmaybedesirableinspringbackanalysis.Thereferenceconfigurationcannotbeupdatediftheimportedanalysisisgeometricallylinear.Ifconnectorelementsareimported,theconfiguration canbeupdatedprovidedthatthestateisnotimported.Input FileUsethefollowingoptiontospecifythattherefereneeconfigurationUsage: istobeupdatedtotheimportedconfiguration:*IMPORTSTEP=step,UPDATE=YESUsethefollowingoptiontospecifythattherefereneeconfigurationshouldnotbeupdatedtotheimportedconfiguration:*IMPORTSTEP=step,UPDATE=NOFormodelsthataredefinedasassembliesofpartinstances, the*IMPORToptionmustappearwithinapartinstancedefinition.Abaqus/CAEUsage:InAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsAbaqus/CAEUsage:thataredefinedasassembliesofpartinstances.Loadmodule:CreatePredefinedField:Loadmodule:CreatePredefinedField:Step:InitialchooseOtherforfortheTypesforSelectedonoroffStep:fortheTypesforSelectedonoroffStep:toggleImportingthematerialstateYoucanspecifywhetherornottheassociatedmaterialstateshouldbeimported.Ifyouchoosetoimportthematerialstate,thefollowingareimported:?stresses;? equivalentplasticstrains;?backstressesforthekinematichardeningmodels;? user-definedstatevariables;?damage-relatedstatevariablesfortheconcretedamagedplasticitymodel;?damage-relatedstate-variablesfor traction-separation response withcohesiveelements;damage-relatedstatevariablesforductilemetals;

????damage-relatedstatevariablesforfiber-reinforcedcomposites;maximumdeviatoricstrainenergydensityduringdeformationhistoryforMullinseffect;internalstrainsandstressesforviscoelasticmaterialmodels;andconnectorstatevariablessuchasplasticstrains,frictionalslip,anddamagestate.Thus,thestateisimportedcorrectlyforfurtheranalysisonlyforthefollowing:linearelasticity,Misesplasticity(includingthekinematichardeningmodels),extendedDrucker-Pragerplasticity,crushablefoamplasticity,Mohr-Coulombplasticity,criticalstate(clay)plasticity,castironplasticity,concretedamagedplasticity,hyperelasticity(includingMullinseffect),hyperfoam,viscoelasticity,traction-separationresponsewithdamageforcohesiveelements,damageforductilemetals,damageforfiber-reinforcedcomposites,connectorbehavior,andmaterialsdefinedinusersubroutines UMATandVUMATForallothermaterialmodelsonlystresseswillbeimported.Nootherstatevariableswillbeimported.linearelasticity,Misesplasticity(includingthekinematichardeningmodels),extendedDrucker-Pragerplasticity,crushablefoamplasticity,Mohr-Coulombplasticity,criticalstate(clay)plasticity,castironplasticity,concretedamagedplasticity,hyperelasticity(includingMullinseffect),hyperfoam,viscoelasticity,traction-separationresponsewithdamageforcohesiveelements,damageforductilemetals,damageforfiber-reinforcedcomposites,connectorbehavior,andmaterialsdefinedinusersubroutines UMATandVUMATIfthematerialbehaviorisdefinedinausersubroutine,youmustensurethattheUMATandVUMATireconsistent.Ifconnectorelementsareimported,thestatecanbeimportedprovidedthattheconfigurationisnotupdated.Input FileUsethefollowingoptiontospecifythatthematerialstateshouldbeUsage: imported:*IMPORTSTATE=YESUsethefollowingoptiontospecifythatthematerialstateshouldnotbeimported:*IMPORTSTATE=NOFormodelsthataredefinedasassembliesofpartinstances, the*IMPORToptionmustappearwithinapartinstaneedefinition.Abaqus/CAEInAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsUsage: thataredefinedasassembliesofpartinstances.Abaqus/CAEalwaysimportsthematerialstate.Ifyouwanttoimportonlythedeformedmesh,youcanimportanorphanmeshfromaselectedstepandincrementofanoutputdatabase;see“WhatkindsoffilescanbeimportedandexportedfromAbaqus/CAE?,”Section10.1.1oftheAbaqus/CAEUser'sManualRedefiningconstraintsuponimportMostconstraints(suchasmulti-point constraints andsurface-basedtieconstraints)arenotimportedfromtheoriginalanalysisandmustberedefinedintheimportanalysis.Forconstraints suchassurface-basedtiesitisappropriatetoredefinetheseconstraintsintheoriginalreferenceconfiguration.Thisensuresidenticalconstraintdataareregeneratedintheimportanalysis.InanAbaqus/Standardanalysiswithadaptivemeshingandacoustic-to-structuretieconstraints, thestructuralaswellastheacousticnodesmaymovefromtheirinitialpositions.WhensuchacousticandstructuremeshesareimportedfromAbaqus/StandardintoAbaqus/Explicitandthetieconstraintisredefined,theacousticelementsattheinterfacemayappeardistortedwhenviewedintheundeformedplotmodeintheVisualizationmoduleofAbaqus/CAE(thedeformedplotattime=0displaysthecorrectmesh).Toregenerateconstraintsintheoriginalconfiguration,specifythatthereferenceconfigurationshouldnotbeupdatedtotheimportedconfiguration.Ifanewconstraint isdefinedintheimportanalysis,itisappropriatetogeneratetheconstraintdatabasedonthecurrentconfiguration.See “Updatingtheimportedconfiguration ”aboveformoreinformation.ImportingelementsetandnodesetdefinitionsAllelementsetandnodesetdefinitionsassociatedwiththeimportedelementsareimportedbydefault.Formodelsthatarenotdefinedasassembliesofpartinstances,youcanalsoselectivelyimportonlyspecifiedelementsetornodesetdefinitions.Thiscapabilityprovidesaconvenientwayofselectivelyreusingtheelementornodesetsdefinedintheoriginalanalysis.However,anymembersofsuchsetsthatdonotbelongtotheimportedelementsareremovedfromthespecifiedsets.Forexample,supposethreeelementsets—SHELL3D,MEMBandALL—aredefinedintheoriginalanalysis.ElementsetALLcontainsalloftheelementsinelementsetsSHELL3DandMEMB,aswellasotherelements.YouchoosetoimportonlytheelementsetsSHELL3DandMEMB(i.e.,theelementsinthesesetsaswellastheelementsetdefinitions).Inaddition,youselectivelyimporttheelementsetdefinitionALL(butnottheelementsinthisset).Ifelement100belongstoelementsetALLbutnottoeitherelementsetSHELL3DorelementsetMEMB,itwillnotbeimportedandwillberemovedfromthelistofelementsbelongingtoelementsetALL.Theimportedelementsetdefinitionsareprocessedbeforeanynodeorelementdefinitions;therefore,evenifelement100issubsequentlyredefinedintheimportanalysis,itwillnotbelongtoelementsetALL(uniessitisexplicitlyassignedtoelementsetALLintheimportanalysis).Onlynodeandelement setsdefinedinthe originalorpreviousimport analysis areavailable forimporting. Newsetsdefinedduringarestartruncannotbeimported.Input UseeitherorbothofthefollowingoptionsimmediatelyfollowingtheFile *IMPORToptiontoimportselectedelementornodesetdefinitions:Usage:*IMPORTELSET*IMPORTNSETFormodelsthataredefinedasassembliesofpartinstances,youcannotselectivelyimportelementandnodesetdefinitions. Allelementandnodesetdefinitionsareimportedautomatically.Abaqus/CAEInAbaqus/CAEyoucanimportmodeldataandresultsonlyfrommodelsUsage: thataredefinedasassembliesofpartinstances. Youcannotselectivelyimportelementandnodesetdefinitions inAbaqus/CAE.Allelementandnodesetdefinitionsareimportedautomatically.SpecifyingatoleraneeforshellnormalsintheupdatedconfigurationWhentheimportedconfigurationisupdateduponimport,themeshdiscretizationmaynotsatisfythemeshgeometrychecksimposedinAbaqus/ExplicitorAbaqus/Standardtoevaluatewhetherornotameshisreasonable.Inthecaseofhighlywarpedshellelementsitispossiblethatthenormalatthecenteroftheelementthatiscalculatedfromthemidsurfaceinterpolationmaydifferfromthenormalthatisinterpolatedfromtherotatednormalsatthenodes.Ifthediffereneeexceedsthetolerancespecified,theanalysiswillterminate.Thissuggeststhatafinemeshmayberequiredtomodelareasofhighcurvaturechangetoachieveasuccessfulanalysis.Theunitnormalcomputedfromthemidsurfaceinterpolation, 量：i,andthatpredictedbytheinterpolationoftherotatednormalsatthenodes, '_,mustsatisfythecondition:1一5|Hi■1121«whereyoucanspecifythetolerance, .Ifyoudonotspecifyatolerance value,adefaultvalueofW=0.1isused.InputFileIfyouupdatethereferenceconfigurationtobetheimportedUsage: configuration,youcanspecifyatoleraneeforerrorcheckingonshellnormals:*IMPORTCONTROLNORMALTOL=Abaqus/CAEUsage:TheshellnormaltoleraneeisnotsupportedinAbaqus/CAE.AbaqusAnalysisUser'sManual9.2.2TransferringresultsbetweenAbaqus/ExplicitandAbaqus/StandardProducts:Abaqus/StandardAbaqus/ExplicitAbaqus/CAEReferences? “