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【英文标准名称】:StandardGuideforFiniteElementAnalysis(FEA)ofMetallicVascularStentsSubjectedtoUniformRadialLoading
【原文标准名称】:承受均布径向的金属血管支架有限元分析(FEA)的标准指南
【标准号】:ASTMF2514-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F04.30
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:contact;cyclicloading;displacement;fatigueloading;finiteelementanalysis(FEA);modelcalibration;modelvalidation;modelverification;nonlinearmodels;radialloading;shapememoryalloys;solutionsensitivity;stents;strain;stress
【摘要】:Finiteelementanalysisisavaluablemethodforevaluatingtheperformanceofmetallicstentsandinquantifyingquantitiessuchasinternalstresses,internalstrains,anddeformationpatternsduetoappliedexternalloadsandboundaryconditions.Manytimesananalysisisperformedtocorrelatetoandplanexperimentaltests.Afiniteelementanalysisisespeciallyvaluableindeterminingquantitiesthatcannotbereadilymeasured.1.1Purpose8212;Thisguideestablishesgeneralrequirementsandconsiderationsforthedevelopmentoffiniteelementmodelsusedintheevaluationoftheperformanceofametallicvascularstentdesignunderuniformradialloading.Suggestedcriteriaareprovidedforevaluatingthetypicalcasesofmetallicstentsunderuniformradiallyorientedandpulsatileloading.Recommendedproceduresforcheckingandvalidatingthefiniteelementmodel(s)areprovidedasameanstoassessthemodelandanalysisresults.Finally,therecommendedcontentofanengineeringreportcoveringthemechanicalsimulationsispresented.1.2Limits:1.2.1Thisguideislimitedindiscussiontothefiniteelementstructuralanalysisofmetallicstentsofthefollowingtypes:1.2.1.1Plasticallydeformablemetalstents.1.2.1.2Self-expandingmetalstents.1.2.1.3Plasticallydeformablemetalportionsofcoveredstents.1.2.1.4Metalportionsofself-expandingcoveredmetalstents.1.2.2Theemphasisofthetechniquesdescribedinthisguideisintendedforbothelasto-plasticmaterialssuchasstainlesssteel,andsuperelasticmaterialssuchasnitinol.Uniqueconcernsassociatedwithstentsdesignedforshapememorybehaviorarenotaddressedwithinthisguide.1.2.3Thisguidedoesnotconsiderchangestopossibletimevaryingconditionsordifferentloadingsrelatedtovascularremodeling.1.2.4Thisguideisrestrictedtocasesthatinvolvetheapplicationofuniformradiallyorientedloading.1.2.5ThisguidedoesnotprovideguidanceintheapplicationorinterpretationofFEAindeterminingfatiguelife.1.2.6Thisguideisnotintendedtoincludecompletedescriptionsofthefiniteelementmethod,noritstheoreticalbasisandformulation.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.
【中国标准分类号】:C45
【国际标准分类号】:11_040_40
【页数】:8P.;A4
【正文语种】:英语