摘要
Ameshlessapproachbasedonthemovingleastsquaremethodisdevelopedforelasto-plasticityanalysis,inwhichtheincrementalformulationisused.Inthisapproach,thedisplacementshapefunctionsareconstructedbyusingthemovingleastsquareapproximation,andthediscretegoverningequationsforelasto-plasticmaterialareconstructedwiththedirectcollocationmethod.Theboundaryconditionsarealsoimposedbycollocation.Themethodestablishedisatrulymeshlessone,asitdoesnotneedanymesh,eitherforthepurposeofinterpolationofthesolutionvariables,orforthepurposeofconstructionofthediscreteequations.Itissimplyformulatedandveryefficient,andnopost-processingprocedureisrequiredtocomputethederivativesoftheunknownvariables,sincethesolutionfromthismethodbasedonthemovingleastsquareapproximationisalreadysmoothenough.Numericalexamplesaregiventoverifytheaccuracyofthemeshlessmethodproposedforelasto-rdasticityanalysis.
出版日期
2003年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)