资源描述：
《ansys_mechanical_wp》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、ANSYSMechanical—APowerfulNonlinearSimulationTool1GramaR.BhashyamCorporateFellow,DevelopmentManagerMechanics&SimulationSupportGroupANSYS,Inc.275TechnologyDriveCanonsburg,PA15317September20021WithgratefulacknowledgmenttoDr.GuoyuLin,Dr.JinWangandDr.YongyiZhufortheirinp
2、ut.ExecutiveSummaryNumericalsimulationplaysanindispensableroleinthemanufacturingprocess,speedingproductdesigntimewhileimprovingqualityandperformance.Recently,analystsanddesignershavebeguntousenumericalsimulationaloneasanacceptablemeansofvalidation.Inmanydisciplines,
3、virtualprototyping—employingnumericalsimulationtoolsbasedonfiniteelementmethods—hasreplacedtraditionalbuild-and-breakprototyping.Successfuldesignsleadingtobetterprostheticimplants,passengersafetyinautomotivecrashes,packagingofmodernelectronicchips,andotheradvancesar
4、epartlyaresultofaccurateanddetailedanalysis.Canonereliablysimulatethecollapseofashell,interactionofmultipleparts,behaviorofarubberseal,post-yieldstrengthofmetals,manufacturingprocessandsoonusinglinearapproximation?Theanswerisnotreally.Withthetrendtowardever-improvin
5、gsimulationaccuracy,approximationsoflinearbehaviorhavebecomelessacceptable;evenso,costsassociatedwithanonlinearanalysisprohibiteditswideruseinthepast.Today,rapidincreasesincomputingpowerandconcurrentadvancesinanalysismethodshavemadeitpossibletoperformnonlinearanalys
6、isanddesignmoreoftenwhileminimizingapproximations.Analystsanddesignersnowexpectnonlinearanalysiscapabilitiesingeneral-purposeprogramssuchasANSYSMechanical.ANSYS,Inc.isapioneerinthedisciplineofnonlinearanalysis.TheANSYSMechanicalprogram’snonlinearcapabilitieshaveevol
7、vedaccordingtoemerginganalysisneeds,maturityofanalysismethodsandincreasedcomputingpower.Theprogram’snonlinearanalysistechnologyhasdevelopedatsucharapidpacethatsomemaybelargelyunawareofrecentenhancements.Allofthefollowingcomponentsarenecessaryforareliablenonlinearana
8、lysistool:(a)elementtechnologiesforconsistentlarge-deformationtreatment,(b)constitutivemodelsforavarietyofmetalsandnonmetals,(c)contactint
