BEAM4单元中文说明

Release10.0DocumentationforANSYSBEAM4ElasticBeam三维弹性梁BEAM4ElementDescriptionBEAM4单元描述BEAM4isauniaxialelementwithtension,compression,torsion,andbendingcapabilities.Theelementhassixdegreesoffreedomateachnode:translationsinthenodalx,y,andzdirectionsandrotationsaboutthenodalx,y,andzaxes.Stressstiffeningandlargedeflectioncapabilitiesareincluded.Aconsistenttangentstiffnessmatrixoptionisavailableforuseinlargedeflection(finiterotation)analyses.SeetaperedunsymmetricalelasticbeamisdescribedinBEAM44anda3-DplasticbeaminBEAM24.Beam4是一种可用于承受拉、压、弯、扭的单轴受力单元。这种单元在每个节点上有六个自由度：x、y、z三个方向的线位移和绕x、y、z三个轴的角位移。可用于计算应力刚化及〔有限旋转〕的分析。关于本单元更具体的介绍请参阅《ansys理论手册》,关于渐变的非对称弹性梁的问题应按beam44单元考虑，三维塑性梁应按beam24单元考虑。BEAM4InputDataBEAM4输入数据Thegeometry,nodelocations,andcoordinatesystemsforthiselementareshowninFigure4.1:“BEAM4Geometry“.Theelementisdefinedbytwoorthreenodes,thecross-sectionalarea,twoareamomentsofinertia(IZZandIYY),twothicknesses(TKYandTKZ),anangleoforientation(θ)abouttheelementx-axis,thetorsionalmomentofinertia(IXX),andthematerialproperties.IfIXXisnotspecifiedorisequalto0.0,itisassumedequaltothepolarmomentofinertia(IYY+IZZ).IXXshouldbepositiveandisusuallylessthanthepolarmomentofinertia.TheelementtorsionalstiffnessdecreaseswithdecreasingvaluesofIXX.AnaddedmassperunitlengthmaybeinputwiththeADDMASvalue.数确定的：二或三个节点变量，横截面积变量，两个轴惯性矩〔IZZIYY〕变量，两个厚度变量〔TKZ，TKY〕，绕单元座标系下X轴的转角变量〔θ〕X轴〔单元座标系下〕扭转惯性矩〔IXX〕及材料属性。假设IXX没有给定或输入值为0，那系统默认为其等于极〔IZZ＋IYY〕IXXIXX的减小而减小。参数ADDMAS要输入的值是每单位长度的附加质量。Theelementx-axisisorientedfromnodeItowardnodeJ.Forthetwo-nodeoption,thedefault(θ=0°)orientationoftheelementy-axisisautomaticallycalculatedtobeparalleltotheglobalX-Yplane.SeveralorientationsareshowninFigure4.1:“BEAM4Geometry“.ForthecasewheretheelementisparalleltotheglobalZaxis(orwithina0.01percentslopeofit),theelementyaxisisorientedparalleltotheglobalYaxis(asshown).Forusercontroloftheelementorientationabouttheelementx-axis,usetheθangle(THETA)orthethirdnodeoption.Ifbotharedefined,thethirdnodeoptiontakesprecedence.Thethirdnode(K),ifused,definesaplane(withIandJ)containingtheelementxandzaxes(asshown).Ifthiselementisusedinalargedeflectionanalysis,itshouldbenotedthatthelocationofthethirdnode(K),ortheangle(THETA),isusedonlytoinitiallyorienttheelement.(Forinformationaboutorientationnodesandbeammeshing,seeMeshingYourSolidModelintheTheinitialstrainintheelement(ISTRN)isgivenbyΔ/L,whereΔisthedifferencebetweentheelementlength,L,(asdefinedbytheIandJnodelocations)andthezerostrainlength.Thesheardeflectionconstants(SHEARZandSHEARY)areusedonlyifsheardeflectionistobeincluded.AzerovalueofSHEAR_maybeusedtoneglectsheardeflectioninaparticulardirection.SeeShearDeflectionfordetails.关于单元的初始应变〔ISTRN〕通过Δ/L给定，这里的Δ不是单元长度L〔由节点I和J的坐标所打算〕与零应变时的长度。剪切变形常数〔SHARZSHEARY〕只有当考虑剪切变形时才设定，该值为零时即表示无视了剪切变形。ShearDeflection中介绍了细则。KEYOPT(2)isusedtoactivatetheconsistenttangentstiffnessmatrix(i.e.,amatrixcomposedofthemaintangentstiffnessmatrixplustheconsistentstressstiffnessmatrix)inlargedeflectionanalyses[NLGEOM ,ON].Youcanoftenobtainmorerapidconvergenceinageometricallynonlinearanalysis,suchasanonlinearbucklingorpostbucklinganalysis,byactivatingthisoption.However,youshouldnotusethisoptionifyouareusingtheelementtosimulatearigidlinkoragroupofcouplednodes.Theresultingabruptchangesinstiffnesswithinthestructuremaketheconsistenttangentstiffnessmatrixunsuitableforsuchapplications.KEYOPTKEYOPT〔2〕用来把握在大变形分析时是否激活〔用命令，[NLGEOM,ON]〕相容切线刚度矩阵〔也就是，由主切线刚度矩阵加上相容应力矩阵所组成的矩阵。翻开这项设置则在连结或耦合结点时不能激活该项。在刚度急剧变化的构造分析中也不应翻开该项。KEYOPT(7)isusedtocomputeanunsymmetricgyroscopicdampingmatrix(oftenusedforrotordynamicanalyses).TherotationalfrequencyisinputwiththeSPINrealconstant(radians/time,positiveinthepositiveelementxdirection).Theelementmustbesymmetricwiththisoption(e.g.,IYY=IZZandSHEARY=SHEARZ).KEYOPT〔7〕用来把握是否进展不对称回转阻尼矩阵的计算〔常用于转子动态分析〕，所SPIN中输入〔单位为：弧度/X轴正向〕，且单元本身必需是对称的〔如，IYY＝IZZ，SHEARY＝SHEARZ〕。ElementloadsaredescribedinNodeandElementLoads.PressuresmaybeinputassurfaceloadsontheelementfacesasshownbythecirclednumbersonFigure4.1:“BEAM4Geometry“.Positivenormalpressuresactintotheelement.Lateral“NodeandElementLoads如图Figure4.1中带圈数字所示，其中箭头指向为面荷载作用正向。横向均布压力的单位为KEYOPT〔10〕用来把握线性变化T1的默认值为TUNIF，如其它角的温度未给定时其默认值等于第一个角的温度，如给定了T1T2则T3的默认值为T2，T4的默认值为T1；T5到T8的值默认与T1到T4的值相对应。KEYOPT(9)isusedtorequestoutputatintermediatelocations.Itisbasedonequilibrium(freebodyofaportionoftheelement)considerationsandisnotvalidif:KEYOPT〔9〕用来把握两节点中间局部相关值的输出状况，值是按平衡条件得出的。但在以下状况下这些值不能得到：stressstiffeningisturnedon[SSTIF,ON]考虑应力刚化时SSTIO；morethanonecomponentofangularvelocityisapplied[OMEGA]［OMEGA]；anyangularvelocitiesoraccelerationsareappliedwiththeCGOMGA,DOMEGA,orDCGOMGcommands.通过命令CGOMGA,DOMEGA,orDCG/MG作用了角速度或加速度时。BEAM4InputSummaryBEAM4输入参数汇总Nodes节点I,J,K(Korientationnodeisoptional)〔K〕DegreesofFreedom自由度UX,UY,UZ,ROTX,ROTY,ROTZRealConstants实常数Pressures 压力face1(I-J)(-Znormaldirection)face2(I-J)(-Ynormaldirection)face3(I-J)(+Xtangentialdirection)face4(I)(+Xaxialdirection)face5(J)(-Xaxialdirection)(usenegativevalueforoppositeloading)〔如输入的压力为负值表示与几何模型图中方向反向作用)BodyLoads体荷载Temperatures-- 温度T1,T2,T3,T4,T5,T6,T7,T8SpecialFeatures特性Stressstiffening 应力刚化Largedeflection 大变形Birthanddeath 生死KEYOPT(2)Stressstiffeningoption:应力刚化选项〔〔0，见最终产品说明〕UseonlythemaintangentstiffnessmatrixwhenNLGEOMisON.(StressstiffeningeffectsusedinlinearbucklingorotherlinearprestressedanalysesmustbeactivatedseparatelywithPSTRES,ON.)〔NELGEOMON〕〔应力刚化关效应用于线性屈曲分析或用PSTRES激活〔即设为ON〕后的线性预应力分析中。1--化的选项将被无视〔即N是无效的，另如SOLCONTROL被设为N且NLGEOMON时,KEYOPT(2)1。2--Turnoffconsistenttangentstiffnessmatrix(i.e.,amatrixcomposedofthemaintangentstiffnessmatrixplustheconsistentstressstiffnessmatrix)whenSOLCONTROLisON.Sometimesitisnecessarytoturnofftheconsistenttangentstiffnessmatrixiftheelementisusedtosimulaterigidbodiesbyusingaverylargerealconstantnumber.KEYOPT(2)=2isthesameasKEYOPT(2)=0,however,KEYOPT(2)=0iscontrolledbySOLCONTROL,ONorOFF,whileKEYOPT(2)=2isindependentofSOLCONTROL.SOLCONTROL被设为ON时,KEYOPT(2)=2与KEYOPT(2)=0的意义是一样的,有所区分的是KEYOPT(2)=0要受SOLCONTROLON或OFF的把握,而KEYOPT(2)=2则不受SOLCONTROL的把握。KEYOPT(6)Memberforceandmomentoutput:把握构件力及弯矩的输出0--Noprintoutofmemberforcesormoments不输出1--Printoutmemberforcesandmomentsintheelementcoordinatesystem输出单元坐标系下的构件的力与弯矩输出单元坐标系下的构件的力与弯矩KEYOPT(7)Computegyroscopicdampingmatrix.RealconstantSPINmustbegreaterthanzero.IYYmustequalIZZ.SPIN0，IYY=IZZKEYOPT(9)OutputatintermediatepointsbetweenendsIandJ:IJ点中间的节点输出N--OutputatNintermediatelocations(N=0,1,3,5,7,9)输出中间的N个位置〔N=0，1，3，5，7，9〕KEYOPT(10)Loadlocation,usedinconjunctionwiththeoffsetvaluesinputontheSFBEAMcommand):SFBEAM指令输入荷载偏移量的输入方法0--Offsetisintermsoflengthunits以长度为单位，直接输入压力相对于I，J节点的偏移量；1--Offsetisintermsofalengthratio(0.0to1.0)以偏移量与单元长度的比值为单位0～，用相对值形式输入偏移Table4.1BEAM4RealConstantsBEAM4实常数表No.NameDescription1AREACross-sectionalarea 横截面积2IZZAreamomentofinertia 面积惯性矩3IYYAreamomentofinertia 面积惯性矩4TKZThicknessalongZaxis Z轴单元厚度5TKYThicknessalongYaxis Y轴单元厚度6THETAOrientationaboutXaxis X轴的转角7ISTRNInitialstrain 初始应变8IXXTorsionalmomentofinertia 扭转惯性矩9SHEARZSheardeflectionconstantZ[1]剪切变形常数Z10SHEARYSheardeflectionconstantY[2]剪切变形常数Y11SPINRotationalfrequency(requiredifKEYOPT(7)=1)转动频率〔KEYOPT(7)=1时需设定〕12ADDMASAddedmass/unitlength 附加质量/单位长度SHEARZgoeswithIZZ;ifSHEARZ=0,thereisnosheardeflectionintheelementYdirection.SHEARZIZZSHWARZ=0则表示无视单元Y方向的剪切变形；SHEARYgoeswithIYY;ifSHEARY=0,thereisnosheardeflectionintheelementZdirection.SHEARYIYYSHWARY=0则表示无视单元Z方向的剪切变形；BEAM4OutputDataAdditionalelementoutputasshowninTable4.2:“BEAM4ElementOutputDefinitions“.单元解，细则见“BEAM4单元输出数据一览表”SeveralitemsareillustratedinFigure4.2:“BEAM4StressOutput“.以下是对“Figure4.2BEAM4Themaximumstressiscomputedasthedirectstressplustheabsolutevaluesofbothbendingstresses.Theminimumstressisthedirectstressminustheabsolutevalueofbothbendingstresses.AgeneraldescriptionofsolutionoutputisgiveninSolutionOutput.SeetheANSYSBasicAnalysisGuideforwaystoviewresults.值之差。有关求解输出的总体性介绍请见“SolutionOutput”，而有关结果内容观看的一些方法见“ANSYSBasicAnalysisGuide”Figure4.2BEAM4StressOutputTheElementOutputDefinitionstableusesthefollowingnotation:使用单元输出信息表时应留意：Acolon(:)intheNamecolumnindicatestheitemcanbeaccessedbytheComponentNamemethod[ETABLE,ESOL].TheOcolumnindicatestheavailabilityoftheitemsinthefileJobname.OUT.TheRcolumnindicatestheavailabilityoftheitemsintheresultsfile.Table4.2BEAM4ElementOutputDefinitionsNameDefinitionORELElementnumber单元号YYNODESElementnodenumber(IandJ)单元节点-I，JYYMATMaterialnumberfortheelement单元材料号YYVOLU:Elementvolume单元体积-YXC,YC,ZCLocationwhereresultsarereported输出结果坐标Y3TEMPTemperaturesatintegrationpointsT1,T2,T3,T4,T5,T6,T7,T8积分点上的温度T1,T2,T3,T4,T5,T6,T7,T8YYPRESPressureP1atnodesI,J;OFFST1atI,J;P2atI,J;OFFST2atI,J;P3atI,J;OFFST3atI,J;P4atI;P5atJYY压力P1atnodesI,J;偏移量1atI,J;压力P2atI,J;2atI,J;压力P3atI,J;3atI,J;压力P4atI;压力P5atJSDIRAxialdirectstress轴向正应力11SBYTBendingstressontheelement+Ysideofthebeam11梁内单元+Y面上的弯曲应力SBYBBendingstressontheelement-Ysideofthebeam11梁内单元-Y面上的弯曲应力SBZTBendingstressontheelement+Zsideofthebeam11梁内单元+Z面上的弯曲应力SBZBBendingstressontheelement-Zsideofthebeam11梁内单元-Z面上的弯曲应力SMAXMaximumstress(directstress+bendingstress)11最大应力(正应力+弯曲应力)SMINMinimumstress(directstress-bendingstress)11最小应力(正应力-弯曲应力)EPELDIRAxialelasticstrainattheend11端部轴向弹性应变NameDefinitionOR端点轴向热应变EPTHBYTBendingthermalstrainontheelement+Ysideofthebeam11梁内单元+Y面上的弯曲热应变EPTHBYBBendingthermalstrainontheelement-Ysideofthebeam11梁内单元-Y面上的弯曲热应变EPTHBZTBendingthermalstrainontheelement+Zsideofthebeam11梁内单元+Z面上的弯曲热应变EPTHBZBBendingthermalstrainontheelement-Zsideofthebeam11梁内单元-Z面上的弯曲热应变EPINAXLInitialaxialstrainintheelement11单元初始轴向应变MFOR(X,Y,Z)MemberforcesintheelementcoordinatesystemX,Y,Zdirections2Y单元坐标系中X，Y，Z方向的力MMOM(X,Y,Z)MembermomentsintheelementcoordinatesystemX,Y,Zdirections2Y单元坐标系中X，Y，Z方向的弯矩TheitemrepeatsforendI,intermediatelocations(seeKEYOPT(9)),andendJ.每个单元的节点I，J及中间点〔见KEYOPT〔9〕〕均列出该项结果IfKEYOPT(6)=1.假设KEYOPT(6)=1；Availableonlyatcentroidasa*GETitem.仅在几何中心作*GET的一个工程可用ThefollowingtableslistoutputavailablethroughtheETABLEcommandusingtheSequenceNumbermethod.SeeTheGeneralPostprocessor(POST1)oftheANSYSBasicAnalysisGuideandTheItemandSequenceNumberTableofthismanualforNameoutputquantityasdefinedintheTable4.2:“BEAM4ElementOutputDefinitions“指在“BEAM4单元输出信息表”中的有关变量。ItempredeterminedItemlabelforETABLEcommand命令ETABLE中使用的参数。Esequencenumberforsingle-valuedorconstantelementdata单元数据为常数或单值时对应的序号。I,JsequencenumberfordataatnodesIandJ节点I,所对应的数字序号。ILNsequencenumberfordataatIntermediateLocationN中间点的的挨次号。Table4.3BEAM4ItemandSequenceNumbers(KEYOPT(9)=0)OutputQuantityNameETABLEOutputQuantityNameETABLEandESOLCommandInputSDIR轴向正应力SBYT梁内单元+YSBYB梁内单元-Y面上的弯曲应力SBZT梁内单元+ZEPELDIR端部轴向弹性应变EPELBYT梁内单元+YEPELBZT梁内单元+ZEPELBZB梁内单元-ZSMAX最大应力(正应力+弯曲应力)SMIN最小应力(正应力-弯曲应力)EPTHDIR端点轴向热应变EPTHBYT梁内单元+Y面上的弯曲热应变EPTHBYB梁内单元-Y面上的弯曲热应变EPTHBZT梁内单元+ZItemEIJLS-16LS-27LS-38LS-49LS-510LEPEL-16LEPEL-27LEPEL-38LEPEL-49LEPEL-510NMISC-13NMISC-24LEPTH-16LEPTH-27LEPTH-38LEPTH-49OutputQuantityNameEPTHBZB梁内单元－ZEPINAXL单元初始轴向应变MFORXXMFORYYMFORZZMMOMZZ方向的弯矩P11I,JOFFST11P22I,JOFFST22P33I,JOFFST33P44P55

ETABLEandESOLCommandInputItemEIJLEPTH-510LEPTH11--SMISC-17SMISC-28SMISC-39SMISC-410SMISC-511SMISC-612SMISC-1314SMISC-1516SMISC-1718SMISC-1920SMISC-2122SMISC-2324SMISC-25-SMISC--26PseudoNode1 2 3 4 5 6 7 8OutputQuantityNameETABLEandESOLCommandInputTEMP温度LBFE1ItemOutputQuantityNameETABLEandESOLCommandInputTEMP温度LBFE1Item2E345I67J8OutputQuantityNameETABLEOutputQuantityNameETABLEandESOLCommandInputSDIR轴向正应力SBYT梁内单元+YSBYB梁内单元-Y面上的弯曲应力SBZT梁内单元+ZEPELDIR端部轴向弹性应变EPELBYT梁内单元+YEPELBZT梁内单元+ZEPELBZB梁内单元-ZSMAX最大应力(正应力+弯曲应力)SMIN最小应力(正应力-弯曲应力)ItemEIIL1JLS-1611LS-2712LS-3813LS-4914LS-51015LEPEL-1611LEPEL-2712LEPEL-3813LEPEL-4914LEPEL-51015NMISC-135NMISC-246ItemEIIL1JLEPTH-1611LEPTH-2712LEPTHItemEIIL1JLEPTH-1611LEPTH-2712LEPTH-3813LEPTH-4914LEPTH-51015LEPTH16---SMISC-1713SMISC-2814SMISC-3915SMISC-41016SMISC-51117SMISC-61218SMISC-19-20SMISC-21-22SMISC-23-24SMISC-25-26SMISC-27-28SMISC-29-30EPTHDIR端点轴向热应变EPTHBYT梁内单元+YEPTHBYB梁内单元-YEPTHBZT梁内单元+ZEPTHBZB梁内单元－Z面上的弯曲热应变EPINAXL单元初始轴向应变MFORXXMFORYYMFORZZMMOMXXMMOMYYMMOMZZP11I,J1P22I,J2P33I,J312345678LBFE12345678OutputQuantityNameETABLEandESOLCommandInputP44P5OutputQuantityNameETABLEandESOLCommandInputP44P55ItemSMISCSMISCE--I31-IL1--J-32PseudoNodeTEMP温度OutputQuantityNameETABLEOutputQuantityNameETABLEandESOLCommandInputSDIR轴向正应力SBYT梁内单元+YSBYB梁内单元-YSBZT梁内单元+ZSBZB梁内单元－ZEPELDIR端部轴向弹性应变EPELBYT梁内单元+YEPELBYB梁内单元-Y面上的弯曲弹性应变ItemEIIL1IL2IL3JLS-16111621LS-27121722LS-38131823LS-49141924LS-510152025LEPEL-16111621LEPEL-27121722LEPEL-38131823OutputQuantityNameEPELBZT梁内单元+Z面上的弯曲弹性应变SMAX最大应力(正应力+弯曲应力)SMIN最小应力(正应力-弯曲应力)EPTHDIR端点轴向热应变EPTHBYT梁内单元+YEPTHBYB梁内单元-YEPTHBZT梁内单元+ZEPTHBZB梁内单元－Z面上的弯曲热应变EPINAXL单元初始轴向应变MFORXXMFORYYMFORZZMMOMXXMMOMYYMMOMZZP11I,JOFFST11

ETABLEandESOLCommandInputItemEIIL1IL2IL3JLEPEL-49141924LEPEL-510152025NMISC-13579NMISC-246810LEPTH-16111621LEPTH-27121722LEPTH-38131823LEPTH-49141924LEPTH-510152025LEPTH26-----SMISC-17131925SMISC-28142026SMISC-39152127SMISC-410162228SMISC-511172329SMISC-612182430SMISC-31---32SMISC-33---34ItemEIIL1IL2IL3JSMISC-35---36SMISC-37---38SMISC-39---40SMISC-41---42SMISC-43---SMISC-----44PseudoNode12345678LBFE12345678OutputQuantityNameETABLEandESOLCommandInputP22I,JOutputQuantityNameETABLEandESOLCommandInputP22I,JOFFST22P33I,JOFFST33P44P55TEMP温度OutputQuantityNameETABLEOutputQuantityNameETABLEandESOLCommandInputSDIR轴向正应力SBYT梁内单元+YSBYB梁内单元-YSBZT梁内单元+ZItemEIIL1IL2IL3IL4IL5JLS-161116212631LS-271217222732LS-381318232833LS-491419242934OutputQuantityNameSBZB梁内单元－ZEPELDIR端部轴向弹性应变EPELBYT梁内单元+YEPELBYB梁内单元-YEPELBZT梁内单元+Z面上的弯曲弹性应变EPELBZB梁内单元-ZSMAX最大应力(正应力+弯曲应力)SMIN最小应力(正应力-弯曲应力)EPTHDIR端点轴向热应变EPTHBYT梁内单元+YEPTHBYB梁内单元-YEPTHBZT梁内单元+ZEPTHBZB梁内单元－Z面上的弯曲热应变EPINAXL单元初始轴向应变MFORXXMFORYYMFORZZMMOMXX

ETABLEandESOLCommandInputItemEIIL1IL2IL3IL4IL5JLS-5101520253035LEPEL-161116212631LEPEL-271217222732LEPEL-381318232833LEPEL-491419242934LEPEL-5101520253035NMISC-135791113NMISC-2468101214LEPTH-161116212631LEPTH-271217222732LEPTH-381318232833LEPTH-491419242934LEPTH-5101520253035LEPTH36-------SMISC-171319253137SMISC-281420263238SMISC-391521273339SMISC-4101622283440ItemEIIL1IL2IL3IL4IL5JSMISC-5111723293541SMISC-6121824303642SMISC-43-----44SMISC-45-----46SMISC-47-----48SMISC-49-----50SMISC-51-----52SMISC-53-----54SMISC-55------SMISC-------56PseudoNode12345678TEMP温度LBFE12345678OutputQuantityNameETABLEandESOLCommandInputMMOMYYMMOMZOutputQuantityNameETABLEandESOLCommandInputMMOMYYMMOMZZP11I,JOFFST11P22I,JOFFST22P33I,JOFFST33P44P55OutputQuantityNameETABLEOutputQuantityNameETABLEandESOLCommandInputItemEI IL1 IL2IL3IL4IL5 IL6 IL7JOutputQuantityNameSDIR轴向正应力SBYT梁内单元+YSBYB梁内单元-Y面上的弯曲应力SBZT梁内单元+ZEPELDIR端部轴向弹性应变EPELBYT梁内单元+YEPELBZT梁内单元+ZEPELBZB梁内单元-ZSMAX最大应力(正应力+弯曲应力)SMIN最小应力(正应力-弯曲应力)EPTHDIR端点轴向热应变EPTHBYT梁内单元+YEPTHBYB梁内单元-YEPTHBZT梁内单元+ZEPINAXL单元初始轴向应变

ETABLEandESOLCommandInputItemEIIL1IL2IL3IL4IL5IL6IL7JLS-1611162126313641LS-2712172227323742LS-3813182328333843LS-4914192429343944LS-51015202530354045LEPEL-1611162126313641LEPEL-2712172227323742LEPEL-3813182328333843LEPEL-4914192429343944LEPEL-51015202530354045NMISC-1357911131517NMISC-24681012141618LEPTH-1611162126313641LEPTH-2712172227323742LEPTH-3813182328333843LEPTH-4914192429343944LEPTH-51015202530354045LEPTH46---------OutputQuantityNameMFORXXMFORYYMFORZZMMOMZZ方向的弯矩P11I,JOFFST11P22I,JOFFST22P33I,JOFFST33P44P55TEMP温度

ETABLEandESOLCommandInputItemEIIL1IL2IL3IL4IL5IL6IL7JSMISC-1713192531374349SMISC-2814202632384450SMISC-3915212733394551SMISC-41016222834404652SMISC-51117232935414753SMISC-61218243036424854SMISC-55-------56SMISC-57-------58SMISC-59-------60SMISC-61-------62SMISC-63-------64SMISC-65-------66SMISC-67--------SMISC---------68PseudoNode12345678LBFE12345678Table4.8BEAM4ItemandSequenceNumbers(KEYOPT(9)=9)OutputQuantityNameETABLEOutputQuantityNameETABLEandESOLCommandInputSDIR轴向正应力SBYT梁内单元+YSBYB梁内单元-Y面上的弯曲应力SBZT梁内单元+ZEPELDIR端部轴向弹性应变EPELBYT梁内单元+YEPELBZT梁内单元+ZEPELBZB梁内单元-ZSMAX最大应力(正应力+弯曲应力)SMIN最小应力(正应力-弯曲应力)EPTHDIR端点轴向热应变EPTHBYT梁内单元+Y面上的弯曲热应变EPTHBYB梁内单元-Y面上的弯曲热应变EPTHBZT梁内单元+ZItemEIIL1IL2IL3IL4IL5IL6IL7IL8IL9JLS-16111621263136414651LS-27121722273237424752LS-38131823283338434853LS-49141924293439444954LS-510152025303540455055LEPEL-16111621263136414651LEPEL-27121722273237424752LEPEL-38131823283338434853LEPEL-49141924293439444954LEPEL-510152025303540455055NMISC-13579111315171921NMISC-246810121416182022LEPTH-16111621263136414651LEPTH-27121722273237424752LEPTH-38131823283338434853LEPTH-49141924293439444954OutputQuantityNameEPINAXL单元初始轴向应变MFORXXMFORYYMFORZZMMOMXXMMOMYYMMOMZZ方向的弯矩P11I,JP22I,JP33I,JP44P55

ETABLEandESOLCommandInputItemEIIL1IL2IL3IL4IL5IL6IL7IL8IL9JLEPTH-510152025303540455055LEPTH56-----------SMISC-17131925313743495561SMISC-28142026323844505662SMISC-39152127333945515763SMISC-410162228344046525864SMISC-511172329354147535965SMISC-612182430364248546066SMISC-67---------68SMISC-69---------70SMISC-71---------72SMISC-73---------74SMISC-75---------76SMISC-77---------78SMISC-79----------SMISC-----------80PseudoNode1 2 3 4 5 6 7 8OutputOutputQuantityNameETABLEandESOLCommandInputItemEI IL11IL22IL3 IL4 IL5 IL6IL76IL8 IL9JTEMP温度LBFE34578BEAM4AssumptionsandRestrictionsBeam4单元的假设与限制：Thebeammustnothaveazerolengthorarea.Themomentsofinertia,however,maybezeroiflargedeflectionsarenotused.长度及面积不行为0，当不进展大变形分析时惯性矩可以为0;Thebeam