焊接过程的有限元模拟

631121[]2008-03-12[]2008-04-01[](1968-),,,:(1.,330063;2.,330012)[];;;[]ANSYS,T,APDL,[]TG40[]A[]1001-4926(2008)02-0063-05SimulationofweldingprocessesbyfiniteelementanalysisXIONGZhen-yu1,DONGJie1,XIEYu-tian2,JIANGHai-xia1(1.NanchangHangkongUniversity,Nanchang,Jiangxi330063,China;2.NanchangMetallurgyConstructionLtd,Nanchang,Jiangxi330012,China)Keywords:welding;numericalsimulation;temperaturefield;stressfieldAbstract:ThefiniteelementanalysisoftemperaturefieldsandstressfieldintheTweldingisaccomplishedbasedontheANSYS.ItputsforwardadoubleheatsourcesmodelcombinedwithGaussiananddoubleellipsoidaldistribution.AndthedynamicsimulationoftemperaturefieldandstressfieldforweldingprocesshasbeenrealizedbyusingANSYSparametricdesignlanguage(APDL).There2sultsconformtothetheorycalculation.,,[1]AN2SYSCAE,[2]ANSYSAPDL,T,1,,T160mm16mm100mm,100mm20mm100mm,2008622264JournalofNanchangHangkongUniversityNaturalScience55,2mm,Q345BT,SOLID87,4SURF1522,,,3mm,Tz1.1,,,T,,[3]q(r)=qmexp-3r2R2(1):qm;R;r[4],,,1/4,1/4f1,f2,f1+f2=2,:q(r)=63f1Q3/2abcfexp-3x2a2+y2b2+z2c2f2(2)q(r)=63f2Q3/2abcbexp-3x2a2+y2b2+z2c2b2(3)a,b,cf,cb,D10mm,a=D/2,cf=23ah,cb=83ah,b=0.005mm1.2T,,ANSYS[5],,;,,ANSYS/prep7,,/prep7,1.3(1);(2)[6];(3)65,;(4)[7]1.4,,ANSYSAPDL,,:LN,,,,,L/V,(),,,2TANSYS,,APDL,T;,;TANSYS:,T2.1ANSYS,138T,,,T,,4,,,,,(35:T;68:T)2008622266JournalofNanchangHangkongUniversityNaturalScience9,T4,1-;2-3mm;3-6mm;4-10mm10,,,,,,,,672.2,AN2SYS,,,,,,,(z;yT,xT)11T,,,12z,,z,,,,,,T100mm,AB,AB100mm,(m;pa)1314yx,,,[8],(94)2008622294JournalofNanchangHangkongUniversityNaturalScience[3],,.[J].,2002,31(17):25-28.[4]UlfS,RogerioMV,GeorgesG.Alkyguanidinesascatalystsforthetransesterificationofrapeseedoil[J].JournalofMolecularCatalysisA:Chemical,1995,99:65-70.[5]KoizumiA,MurataN.Manufactureof(meth)acrylicacidesterswithhighpurity[P].JP:261509,2003-09-19.[6]KimHJ,KangBS.Transesterificationofvegetableoiltobiodieselusingheterogeneousbasecatalyst[J].CatalysisToday,2004,93$95(1):315-320.(:)(67),,,3(1),,ANSYS,,(2)T,T,AN2SYSAPDL,,ANSYS[][1].ANSYS[J].,2005,20(5):81-84.[2],.ANSYS[J]..2007,35(7):41-44.[3].[M].:,1985:23-29.[4].[D].,2005(6):38.[5],,.[J].,2006,36(8):32-35.[6],.[J].,2004,26(5):511-513.[7],,.[J].,2005(5):466-470.[8].[M].:,2007(8):52-66.(:)