简介：

简介：Fourdifferentstructuralmodelsofartificialjointsweredevelopedandthefiniteelementmethod(FEM)wasemployedtoinvestigatetheirmechanicalcharacteristicsunderstaticanddynamicconditions.ThematerialsusedintheFEMcalculationwereultra-highmolecularweightpolyethylene(UHMWPE),316Lstainlesssteel,CoCrMoalloyandTi6Al4Valloy.Thestressdistribution,strain,andelasticdeformationunderstaticanddynamicconditionswereobtained.Analysisandcomparisonofthecalculationresultsofdifferentmodelswereconducted.Itisshownthatwiththesameparametersthemodelofametallicfemurheadcoveredwithanartificialcartilagelayerismoresimilartothestructureofthenaturalhumanjointanditsmechanicalcharacteristicsarethebestofthefourmodels.