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1、DefiningthesurfacesectionSectionoutputrequestsareavailableonlyforsectionsdefinedusingelement-basedsurfaces(see“Element-basedsurfacedefinition,”Section2.3.2).Consequently,thesectionsmustbedefinedusingfacesofcontinuumelementsalthoughothertypesofelements(beams,memb
2、ranes,shells,springs,dashpots,etc.)canbeattachedtothesection.Calculationofaccumulatedquantitiesonthesection(suchasthetotalforce)involvesnodalquantitiesassociatedwithelementsononesideofthesectiononly.Therefore,thesurfacedefinitionshoulduseelementsonlyfromonesideo
3、fthesection(the“baseelements,”asdefinedin“Prescribedassemblyloads,”Section32.5.1),thuspreciselyidentifyingthesidefromwhichaccumulatedquantitiesarecomputed.Sincethesectionusuallycutsthroughthemeshinatypicalsectionoutputrequest,automaticgenerationofthesurfacecanno
4、tbeused.Specifyingtheelementfacesgivesexactcontroloverwhichelementfacesformthesurface,whichisessentialwhendefiningacross-sectionthroughasolidbody.Youmustspecifythenameofthesurfaceforwhichoutputisbeingrequested.Surfacesthataredefinedinarestartanalysiscanbeusedonl
5、yforsectionoutputrequests.Thenewlydefinedsurfacecannotbeusedforanyotherpurpose(suchasacontactpairorpre-tensionsectiondefinition).InputFileUsage:Useeitherofthefollowingoptions:*SECTIONPRINT,NAME=section_name,SURFACE=surface_name*SECTIONFILE,NAME=section_name,SURF
6、ACE=surface_nameSelectingthecoordinatesysteminwhichoutputisdesiredYoucanspecifythechoiceofcoordinatesysteminwhichthesectionoutputisdesired.Bydefault,thecomponentsofvectorquantitiesassociatedwiththesectionareobtainedwithrespecttotheglobalsystemofcoordinates.Alter
7、natively,youcanspecifythatoutputisdesiredinalocalsystemasdefinedbelow.InputFileUsage:Useeitherofthefollowingoptions:*SECTIONPRINT,NAME=section_name,SURFACE=surface_name,AXES=GLOBALorLOCAL*SECTIONFILE,NAME=section_name,SURFACE=surface_name,AXES=GLOBALorLOCALDefin
8、ingacoordinatesystemlocaltothesurfacesectionYoucanallowAbaqus/Standardtodefinethelocalsystem,oryoucanspecifyitdirectly.DefaultlocalsystemThedefaultlocalsystemispartic