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1LS_Prepost关键操作1.模型建立立方体模型起始坐标Part编号起始节点号：该Part第一个节点号码粒子密度立方体沿三个坐标轴方向的节点数2球体模型球心坐标球体球体半径沿三个坐标轴方向的节点数3圆柱体模型圆柱方向坐标底部中心坐标圆柱半径圆柱高径向节点数，一般设置相同轴向节点数4圆台/锥模型圆台/锥方向坐标底部中心坐标圆台底部半径圆台高径向节点数，一般设置相同轴向节点数圆台顶部半径52.参数定义*DATABASE_FORMAT计算结果输出格式IFORMOutputformatforD3PLOTandD3THDTfilesEQ.0:LS-DYNAdatabaseformat(default),EQ.1:ANSYSdatabaseformat,EQ.2:BothLS-DYNAandANSYSdatabaseformats.IBINARYWordsizeofthebinaryoutputfiles(D3PLOT,D3THDT,D3DRLFandinterfacefilesfor64bitcomputersuchasCRAYandNEC.EQ.0:default64bitformat,数据库输出结果格式6EQ.1:32bitIEEEformatRemarks:1.Thisoptionisnotavailableforeveryplatform.CheckLS-DYNABanneruponexecutionoftheprogram2.Byusingthisoptiononecanreducethesizeofthebinaryoutputfileswhicharecreatedby64bitscomputersuchasCRAYandNEC.二进制*DATABASE_EXTENT_BINARY结果输出控制数据库输出二进制结果7NEIPHNumberofadditionalintegrationpointhistoryvariableswrittentothebinarydata-baseforsolidelements.Theintegrationpointdataiswritteninthesameorderthatitisstoredinmemory-eachmaterialmodelhasitsownhistoryvariablesthatarestored.Foruserdefinedmaterialsitisimportanttostorethehistorydatathatisneededforplottingbeforethedatawhichisnotofinterest.给实体单元增加附加综合的点历史变量二进制数据库，综合点数据目的是储存记忆每个材料模型使它拥有自己的历史变量。对于使用者而言，定义材料对于储存历史数据是很重要的，在数据储存前需要对其进行描绘。NEIPSNumberofadditionalintegrationpointhistoryvariableswrittentothebinarydata-baseforbothshellandthickshellelementsforeachintegrationpoint,seeNEIPHabove.给薄壳和厚壳单元增加附加综合的点历史变量二进制数据库，看下面的NEIPH。MAXINTNumberofshellintegrationpointswrittentothebinarydatabase,seealso*INTEGRATION_SHELL.Ifthedefaultvalueof3isusedthenresultsareoutputfortheoutermost(top)andinnermost(bottom)integrationpointstogetherwithresultsfortheneutralaxis.IfMAXINTissetto3andtheelementhas1integrationpointthenallthreeresultswillbethe8same.Ifavalueotherthan3isusedthenresultsforthefirstMAXINTintegrationpointsintheelementwillbeoutput.Note:IftheelementhasanevennumberofintegrationpointsandMAXINTisnotsetto3thenyouwillnotgetmid-surfaceresults.SeeRemarksbelow.壳单元附加综合的点历史变量二进制数据库，可以参看*INTEGRATION_SHELL.如果采用默认值3，则结果输出的是最远（高）和最近（下）的综合点，结果包含中间轴坐标。如果设置为3，单元有一个综合点，则三个结果将相同。如果值超过3，则在单元中的第一个MAXINT综合点将会被输出。注意：如果单元拥有一系列综合点，而MAXINT没有被设置成3，则你将无法获得中间表面结果值，详见下面的附注。STRFLGSetto1todumpstraintensorsforsolid,shellandthickshellelementsforplottingbyLS-PREPOSTandASCIIfileELOUT.Forshellandthickshellelementstwotensorsarewritten,oneattheinnermostandoneattheoutermostintegrationpoint.Forsolidelementsasinglestraintensoriswritten.SIGFLGFlagforincludingstresstensorintheshellLS-DYNAdatabase:EQ.1:include(default),EQ.2:exclude.EPSFLGFlagforincludingtheeffectiveplasticstrainsintheshellLS-DYNAdatabase:EQ.1:include(default),EQ.2:exclude.RLTFLGFlagforincludingstressresultantsintheshellLS-DYNAdatabase:EQ.1:include(default),EQ.2:exclude.ENGFLGFlagforincludingshellinternalenergydensityandthicknessintheLSDYNAdatabase:EQ.1:include(default),EQ.2:exclude.CMPFLGOrthotropicandanisotropicmaterialstressandstrainoutputinlocalmaterialcoordinatesystemforsolids,shellsandthickshells.EQ.0:global,EQ.1:local.IEVERPEveryplotstatefor“d3plot”databaseiswrittentoaseparatefile.Thisoptionwilllimitthedatabaseto1000states:EQ.0:morethanonestatecanbeoneachplotfile,EQ.1:onestateonlyoneachplotfile.BEAMIPNumberofbeamintegrationpointsforoutput.Thisoptiondoesnotapplytobeamsthatusearesultantformulation.DCOMPDatacompressiontoeliminaterigidbodydata:EQ.1:off(default),norigidbodydatacompression,EQ.2:on,rigidbodydatacompressionactive,EQ.3:off,norigidbodydatacompression,butnodalvelocitiesandaccelerationsareeliminatedfromthedatabase.EQ.4:on,rigidbodydatacompressionactiveandnodalvelocitiesandaccelerationsareeliminatedfromthedatabase.9SHGEOutputshellhourglassenergydensity:EQ.1:off(default),nohourglassenergywritten,EQ.2:on.STSSZOutputshellelementtimestep,mass,oraddedmass:EQ.1:off(default),EQ.2:outputtimestepsize,EQ.3:outputmass,addedmass,ortimestepsize.Seeremark3below.N3THDTMaterialenergywriteoptionforD3THDTdatabaseEQ.1:off,energyisNOTwrittentoD3THDTdatabase,EQ.2:on(default),energyiswrittentoD3THDTdatabase.IALEMATOutputsolidpartIDlistcontainingalematerials.EQ.1:on(default)NINTSLDNumberofsolidelementintegrationpointswrittentotheLS-DYNAdatabase.Thedefaultvalueis1.ForsolidswithmultipleintegrationpointsNINTSLDmaybesetto8.Currently,noothervaluesforNINTSLDareallowed.Forsolidswithmultipleintegrationpoints,anaveragevalueisoutputifNINTSLDissetto1.PKP_SENFlagtooutputthepeakpressureandsurfaceenergycomputedbyeachcontactinterfaceintotheinterfaceforcedatabase.Toobtainthesurfaceenergy,FRCENG,mustbesentto1onthecontrolcontactcard.WhenPKP_SEN=1,itispossibletoidentifytheenergiesgeneratedontheupperandlowershellsurfaces,whichisimportantinmetalformingappli-cations.ThisdataismappedaftereachH-adaptiveremeshing.EQ.0:NodataiswrittenEQ.1:OutputthepeakpressuresandsurfaceenergybycontactinterfaceSCLPAscalingparameterusedinthecomputationofthepeakpressure.Thisparameterisgenerallysettounity(thedefault),butitmustbegreaterthan0.MSSCLOutputnodalinformationrelatedtomassscalingintotheD3PLOTdatabase.ThisoptioncanbeactivatedifandonlyifDT2MS0.0,seecontrolcard*CONTROL_TIMESTEP.Thisoptionisavaila