abaqus子程序usdfld

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1、Abaqus/CAEUser'sManual12.8.5Definingfieldvariablesatamaterialpoint（在一个材料点定义场变量）InAbaqus/StandardyoucanintroducedependenceonsolutionvariableswithusersubroutineUSDFLD.Thissubroutineallowsyoutodefinefieldvariablesatamaterialpointasfunctionsoftime,ofanyoftheavailablema

2、terialpointquantitieslistedin‘‘Abaqus/Standardoutputvariableidentifiers,’’Section4.2.1oftheAbaqusAnalysisUser'sManual，andofmaterialdirections.Materialpropertiesdefinedasfunctionsofthesefieldvariablesmay，thus,bedependentonthesolution.UsersubroutineUSDFLDiscalledatea

3、chpointforwhichthematerialdefinitionincludesareferencetotheusersubroutine.（在ABAQUS里面，你能够用子程序USDFLD來求解变量。USDFLD允许你将一个材料点上的场变景定义为时间函数，能够使用到的材料点在用户使用手册4.2.1节中“abaqus输岀变量的标识码”中被提及到。材料的特性被定义作为场变量的函数，因此依赖于求解方法。）（在每个被定义材料性能的点USDFLD能够被调用）Toincludeareferencetousersubroutine

4、USDFLDinamaterialdefinition:1.FromthemenubarintheEditMaterialdialogbox,selectGeneral―>UserDefinedField.（ForinformationondisplayingtheEditMaterialdialogbox,see“Creatingoreditingamaterial,’’Section12.7.1.）2.ClickOKtoclosetheEditMaterialdialogbox.Alternatively,youcans

5、electanothermaterialbehaviortodefinefromthemenusintheEditMaterialdialogbox（see“Browsingandmodifyingmaterialbehaviors，’’Section12.7.2,formoreinformation）.Abaqus/CAEUser’sManualoo（子程序USDFLD在材料屮的定义过程可参考下面：1.在编辑材料的对话框屮，选將General-UserDefinedField2.点击OK关闭编辑材料的对话框，或者在编辑对话

6、框中选择另外的一个材料特性。）AbaqusUserSubroutinesReferenceManual1.1.49USDFLDUsersubroutinetoredefinefieldvariablesatamaterialpoint.（在一个材料点上使用USDFLD重新定义场变量）Product:Abaqus/StandardReferences（参考）•“ObtainingmaterialpointinformationinanAbaqus/Standardanalysis，’’Section2.1.6•“Materia

7、ldatadefinition，’，Section20.1.2oftheAbaqusAnalysisUser’sManual.*USERDEFINEDFIELD•“Damageandfailureofalaminatedcompositeplate，’’Section1.1.14oftheAbaqusExampleProblemsManual參“USDFLD，’’Section4.1.24oftheAbaqusVerificationManualOverview（概述）UsersubroutineUSDFLD:•allows

8、youtodefinefieldvariablesatamaterialpointasfunctionsoftimeorofanyoftheavailablematerialpointquantitieslistedintheOutputVariableIdentifierstable(‘