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1、一起学习板屈曲分析simwe会员名：LXCAD一，材料为铁，适合做模板分析，动态显性,物质的非线形指南10.5blastloadingonastiffenedplate*Amplitude,name=Blast,smooth=0.250.,0.,0.001,700000.,0.01,700000.,0.02,0.0.05,0.*MATERIALS*材料明确为铁*Material,name=Steel*Density7800.,*Elastic2.1e+11,0.3*Plastic关键字规定使用Misess屈服准则*Plastic3e+08,0.3.5e+08,0.0253.75e+08,0.1
2、3.94e+08,0.24e+08,0.35*BOUNDARYCONDITIONS*Name:FixedgesType:Symmetry/Antisymmetry/Encastre*BoundaryEdge,ENCASTRE*STEP:Blast*Step,name=BlastApplyblastloading*显性动态分析*Dynamic,Explicit,0.05*BulkViscosity!修改屈曲粘性参数，均使用缺省值0.06,1.2*LOADS*Name:PressureloadType:Pressure*Dsload,amplitude=Blast_PickedSurf6,P,1.
3、1., *箱型结构使用动态求特征值例子手册2.2.4中，EigenvalueanalysisofastructureusingtheparallelLanczoseigensolver*PARAMETER*modalinputparametersnumModes=200lowFreq=0.0highFreq=133.0*SHELLGENERALSECTION,ELSET=ALL,MATERIAL=STEEL0.01*MATERIAL,NAME=STEEL*ELASTIC200.E9,0.3*DENSITY7800.0*Stepdefinition*STEPFrequencyextraction
4、*FREQUENCY,NUMBERINTERVAL=4,*BOUNDARYBOTLEFT,ENCASTREBOTRIGHT,ENCASTRE*output,field,freq=0*ENDSTEP三，静力分析（屈曲崩塌分析关键字*STATIC,STABILIZE的使用）例字手册1.2.5Unstablestaticproblem:reinforcedplateundercompressiveloads*ELEMENT,TYPE=SPRING1,ELSET=EPONT50000,34050001,2881*弹簧可模拟拉条*SPRING,ELSET=EPONT3,5.3E+08,*BEAMSECT
5、ION,MATERIAL=ACIER,SECTION=RECT,ELSET=E00000011.500000E-02,1.500000E-020.000000E+00,6.557236E-03,-9.999785E-01*MATERIAL,NAME=ACIER*ELASTIC2.100E+11,3.000E-01*PLASTIC235.259E+06,0.0471.9E+06,0.18837*DENSITY7.850E+03,*BEAMSECTION,MATERIAL=ACIER,SECTION=RECT,ELSET=E00000021.500000E-02,1.500000E-020.000
6、000E+00,8.695324E-03,-9.999622E-01*SHELLSECTION,ELSET=E0000003,MATERIAL=ACIER7.000E-03,3*SHELLSECTION,ELSET=E0000004,MATERIAL=ACIER1.000E-02,3*SHELLSECTION,ELSET=TOLE,MATERIAL=ACIER5.000E-03,3*SHELLSECTION,ELSET=E0000006,MATERIAL=ACIER6.000E-03,3*SHELLSECTION,ELSET=E0000007,MATERIAL=ACIER7.000E-03,3
7、*SHELLSECTION,ELSET=E0000008,MATERIAL=ACIER1.000E-02,3*SHELLSECTION,ELSET=E0000009,MATERIAL=ACIER1.000E-02,3*SHELLSECTION,ELSET=E0000010,MATERIAL=ACIER1.000E-02,3*NSET,NSET=NM1329,*ELSET,ELSET=HILOIREE0000004,E0000009,E0000010*ELSET,ELSET=BARROTSE0000003,E0000007,E0000008*ELSET,ELSET=TOTTOLE,HILOIRE
8、,BARROTS,E0000001,E0000002,E0000006*MPCBEAM,COTE1,NM1*BOUNDARYNM1,3,3NM1,4,4NM1,6,6COTE2,1,1COTE2,3,3COTE2,4,4COTE2,6,68896,2,2COTE3,2,2COTE3,4,4COTE3,6,6COTE4,2,2COTE4,4,4COTE4,6,6*RESTART,WRITE,F=30*STEP,NLGEOM,INC=1GRAVITYLOAD*STATIC1.*DLOADTOT,GRAV,9.81,0,0,-1.*NODEFILE,NSET=NM1,FREQ=1U,CF*ELFIL
9、E,ELSET=HILOIRE,FREQ=200S,E,PE*ENERGYFILE*OUTPUT,FIELD,FREQ=30*NODEOUTPUTU,*OUTPUT,HISTORY*NODEOUTPUT,NSET=NM1U,CF*ENERGYOUTPUT,VARIABLE=ALL*ELPRINT,FREQ=0*NODEPRINT,FREQ=0*ENDSTEP*STEP,NLGEOM,INC=1000BUCKLINGLOAD*STATIC,STABILIZE0.1,1.,*CLOADNM1,1,646.E+04*ENDSTEP四，静力分析，焊点与接触的使用例子1.2.3Bucklingofaco
10、lumnwithspotwelds*SHELLSECTION,ELSET=WPIL,MATERIAL=STEEL,SECTIONINTEGRA=GAUSS0.002,*SHELLSECTION,ELSET=BPIL,MATERIAL=STEEL,SECTIONINTEGRA=GAUSS0.003,*MATERIAL,NAME=STEEL*DENSITY7850.,*ELASTIC206.8E9,0.3*PLASTIC170.0E6,00000000E+00180.0E6,17205942E-03190.0E6,38296832E-03200.0E6,63897874E-03210.0E6,94
11、694765E-03220.0E6,13143660E-02230.0E6,17493792E-02240.0E6,22608092E-02250.0E6,28581845E-02260.0E6,35517555E-02270.0E6,43525275E-02280.0E6,52722659E-02290.0E6,63235357E-02300.0E6,75197279E-02310.0E6,88750519E-02320.0E6,01040458330.0E6,01212430340.0E6,01405106350.0E6,01620263360.0E6,0.1859779370.0E6,0
12、.2125620380.0E6,0.2419857390.0E6,0.2744660400.0E6,0.3102303410.0E6,0.3495160420.0E6,0.3925720430.0E6,0.4396578440.0E6,0.4910434450.0E6,0.5470111460.0E6,0.6078544470.0E6,0.6738777480.0E6,0.7453985490.0E6,0.8227461500.0E6,0.9062610510.0E6,0.9962980*NSET,NSET=BASE,GEN101,129,1200,214,1*BOUNDARYBASE,ENC
13、ASTRE*SURFACE,TYPE=ELEMENT,NAME=BPILBPIL1,*SURFACE,TYPE=ELEMENT,NAME=WPILWPIL1,*RIGIDBODY,ELSET=ROOF,REF=60000*NSET,NSET=WELDREFNODES,GEN5203,45203,100005211,45211,10000*ELEMENT,TYPE=CONN3D2,ELSET=FASTCONN1000000,5203,1052031000001,15203,10152031000002,25203,10252031000003,35203,10352031000004,45203
14、,10452032000000,5211,1052112000001,15211,10152112000002,25211,10252112000003,35211,10352112000004,45211,1045211*ORIENTATION,NAME=GLOBAL1., 0.,0.,0.,1.,0.*CONNECTORSECTION,ELSET=FASTCONN,BEHAVIOR=BEHV,ELIMINATION=NOCARTESIAN,CARDANGLOBAL,*CONNECTORBEHAVIOR,NAME=BEHV*CONNECTORDERIVEDCOMPONENT,NAME=nor
15、mal3,1.0NAME=normal*CONNECTORDERIVEDCOMPONENT,4,5.3333,.3333*CONNECTORDERIVEDCOMPONENT,NAME=shear6,.5,*CONNECTORDERIVEDCOMPONENT,NAME=shear1,21.0,1.0*CONNECTOR2.E+11,*CONNECTOR2.E+11,*CONNECTOR2.E+11,*CONNECTOR2.E+11,*CONNECTOR2.E+11,*CONNECTOR2.E+11,ELASTICITY,ELASTICITY,ELASTICITY,ELASTICITY,ELASTICITY,ELASTICITY,COMPONENT=1COMPONENT=2COMPONENT=3COMPONENT=4COMPONENT=5COMPONENT=6*CONNECTORDAMAGEINITIATION,CRITERION=FORCE,2.E+5*CONNECTORPOTENTIALnormal,.02,MACAULEYshear,.05,ABS*CONNECTORDAMAGEEVOLUTION,TYPE=MOTION,AFFECTEDCOMPONENTS,SO
