基于ABAQUS的压力容器有限元接触分析

:10007466(2011)02003505*ABAQUS,(,257061):基于ABAQUS/CAE建立压力容器的有限元模型,利用软件提供的接触算法,形成压力容器各部件之间的主从接触对通过分步加载模拟了卡箍螺栓预紧和加压过程中容器各部件的应力分布情况结果表明,各部件的最大应力均出现在应力集中部位将该结果和用ASME方法计算得到的危险断面的Mises当量应力进行了比较,比较结果显示二者非常接近:;ABAQUS;;:TH049;TB115:AContactAnalysisofPressureVesselBasedonABAQUSHUANGXiaoguang,HANZhongying(CollegeofStorage&TransportationandArchitecture,ChinaUniversityofPetroleum,Dongying257061,China)Abstract:ThefiniteelementmodelofpressurevesselwasestablishedinABAQUS/CAE.Byusingthecontactarithmeticofsoftware,themasterslavecontactpairswereestablished.Multistepskillwasusedtosimulatethestressdistributionofallpartsattheprocessesofpretighteningandpressuring.Theresultsshowthatthemaximumstressesofallpartsappearedatthestressconcentrationposition.TheMisesequivalentstressesatrisksectionsofallpartsinthisanalysisarecomparedwithwhichcalculatedbyASMEmethod,andthecomparisonsshowtheirgoodagreement.Keywords:pressurevessel;ABAQUS;stressconcentration;contactpair,,,,,,[1],:(),[2]ABAQUS,ABAQUS402Vol40No220113PETROCHEMICALEQUIPMENTMar.2011*:20101026:(1980),,,,,,[3,4]ABAQUS,,ASME11.13,,12~43,35CrMoVA,ReL=930MPa,Rm=1080MPa,E=210GPa,=03;40Cr,ReL=785MPa,Rm=980MPa,E=210GPa,=0312,,1/4(),()334,,92084,5[5~7]51.2,3,,2:,,,,3,60.15[8]!36!201140631.3,,:80MPa([9,10])ASMEVIII1,W:W=2DGbytan(+)(1),b,DG,mm;y,MPa;,,(∀),b=98mm,y=696MPa[11]1.4,,7,8,97,,Mises964MPa974MPaMises,,8,Mises789!37!2,:ABAQUS,798MPa,,587MPa9,Mises,642MPa680MPa2ASME2.1ASME#1,(2)(O)2aa,M[12]:M=(F+Fa)H=!4Dm2p+!Dmq1H(2),F,Fa,N;H,Dm,mm;p,MPa;q1,N/mm,H=Z0+05h,D0/D2∃145,Z0=(D0-D2)/4;D0/D2145,Z0=D0-D262D0+D2D0+D2M1:M1=M/(!Dn)(3),Dn,mm,aaMmax[12]Mmax/M1∀l1(l12),∀l1Mmax/M1,M1Mmax∀:∀=412(1-2)Dn2S2(4)S=D0-D22Mises#r:#r=#w+#a=6MmaxS2+4(F+Fa)!(D02-D22)(5),#w,#a,MPa2,(2)~(5)Mises923MPa2.23(F+Fa)M1M3:M1=(F+Fa)H1!Dn(6)M3=FaH2/(!Dn)(7)M1M3aa:M(l1+0)=M112+12e-∀l1[1+sin(2∀l1)](8)M4=Ml1M3=M3e-∀l1cos(∀l1)+sin(∀l1)(9)aaMises:#r=#w2+#a=6(Ml1+0+M4)S2+4(F+Fal)!(D12-Di2)(10),#w2M1M3,MPa3,(6)~(10)Mises756MPa2.34,,aa,aaM:M=(F+Fa)(Db-Dm)/2(11)#w:#w=MW=3(F+Fa)(Db-Dm)!D2h2(12)∃:∃=F+Fa!Dmh(13)aaMises#r:#r=#w2+3∃2(14),4,(11)~(14)Mises545.6MPa3,ASMEMises11,!38!201140:10007466(2011)020039041,1,2,2(1.,710069;2.,710302):针对某容器壳体上切向接管结构的应力计算和强度分析问题,应用有限元理论和方法,建立数值计算模型,采用ANSYS进行应力计算,得到了详尽的应力场在应力分析的基础上,按照分析设计的思想对接管区应力进行分类和强度评定应力计算结果显示,在接管区多个部位存在着较高的局部应力强度评定结果表明,接管区的强度满足要求:;;;;;:TH49;TB115:A*StressNumericalCalculationandStrengthAnalysisofTangentialBondedStructureofCylindricalShellandNozzleLIHuiqiang1,DANYong1,WANGLi2,HEFeng2,,,ABAQUS[13]1ASMEMisesMPaASME964.0923.0798.0756.0642.0545.64ABAQUS,3,ASME,ABAQUS:[1]JB4732%1995,%%%[S].[2].[M].:,2003.[3]ABAQUSInc.ABAQUSAnalysisUser&sManual[M].USA:ABAQUSInc,2004.[4]ABAQUSInc.ABAQUSExampleProblemsManual[M].USA:ABAQUSInc,2004.[5],.[J].,2010,39(5):1821.[6].ABAQUS[M].:,2005.[7],,,.ANSYS[J].,2010,39(2):3740.[8].ABAQUS[J].,2007,22(4):4851.[9],.ABAQUS[M].:,2006.[10],.[J].,2010,39(5):913.[11],,,.[J].,2008,25(3):2226.[12],.%%%[M].:,2003.[13].ASME[J].,2004,21(3):1619.()402Vol40No220113PETROCHEMICALEQUIPMENTMar.2011*:20101118:(1985),,,,