在LS-Prepost-建立sph模型的详细过程

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..LS_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..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..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..圆台/锥模型2.参数定义圆台/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..*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,EQ.1:32bitIEEEformatRemarks:1.Thisoptionisnotavailableforeveryplatform.CheckLS-DYNABannerupon数据库输出结果格式..executionoftheprogram2.Byusingthisoptiononecanreducethesizeofthebinaryoutputfileswhicharecreatedby64bitscomputersuchasCRAYandNEC.二进制*DATABASE_EXTENT_BINARY结果输出控制数据库输出二进制结果..NEIPHNumberofadditionalintegrationpointhistoryvariableswrittentothebinarydata-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.IfMAXINTissetto3andtheelementhas1integrationpointthenallthreeresultswillbethesame.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.SHGEOutputshellhourglassenergydensity:EQ.1:off(default),nohourglassenergywritten,EQ.2:on.STSSZOutputshellelementtimestep,mass,oraddedmass:EQ.1:off(default),EQ.2:outputtimestepsize,EQ.3:outputmass,addedmass,ortimestepsize.Seeremark3below.N3THDTMaterialenergywriteoptionforD3THDTdatabase..EQ.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.Thisoptio
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