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http//－0871201101-0121-036219003..TG113.25TB115.1AMechanicalbehavioranalysisonmetaldiaphragmofoutersealstructureofvalveYUShaorongXUBingWANGJunInstituteofSystemsEngeeringChinaAcademyofEngineeringPhysicsMianyang621900SichuanChinaAbstractAstotheminiaturizationdesignofvalvethemechanicalbehaviorsofthementaldiaphragmwhichisoneofthemainpartsoftheoutersealstructureofvalveisstudiedbyusingnumericalsimulationmethod.Thestressanddeformationofthree-layermentaldiaphragmisanalyzedundertheeffectofaxialforceandhigh-pressure.Ontheconditionofeffectivesealtheimpactofthelayernumberofmentaldiaphragmonaxialforceandmaximumequivalentstressisanalyzed.Theresultcanprovereferencesforthedesignofvalveandmentaldiaphragm.Keywordsvalvesealstructurementaldiaphragmmechanicalbehaviorfiniteelementmethod2010-08-172010-10-141974—E-mailyusr@caep.ac.cn1970—E-mailxub@caep.ac.cn0.123456、..11..、..Nhttp//“2”7.xy.PN.1.1%.730～45MPa30MPa45MPa60MPa90MPa.1Tab.1Mechanicalperformanceparametersofthematerials/GPa/MPa200.00.3120081.20.330～45J75200.00.340022.13.a60MPa3bc60MPaxd60MPax3Fig.3Stressdistributionofthementaldiaphragmontheconditionofeffectiveseal2212011http//～0.11x=0.30.550.95.2.240.27mm.、.310.271mm20.269mm30.267mm0.3mm..a3ymmb60MPa、x4Fig.4Displacementdistributionofthementaldiaphragmontheconditionofeffectiveseal2.360MPa90MPa3、4、565.5a.5b90MPa15b3625%.ab5Fig.5Theimpactofthelayernumberofmentaldiaphragmonaxialforceandmaximumequivalentstress1273211http//、、.2.1ZHIEMBETOVAKMIKHAYLOVALSMIRNOVGS.ExperimentalstudyofexplosivefragmentationofmetalsmeltsC//AIPConfProc.ShockCompressionCondensedMat-200112thAPSTopicalConference20026201547-552.2.J.2009234283-287.ZHANGChongyuHUHaiboLIQingzhongetal.Experimentalstudyondynamicbehaviorofleadplatedrivenbytwohead-oncollidingdetonationwavesJ.ChinJHighPressurePhys2009234283-287.3JOHNSONGRBEISSELSR.NormalizedsmoothedfunctionforSPHimpactcomputationsJ.IntJNumerMethodsEng199639162725-2741.4LIUGRLIUMB.———M..2005300-302.5LEEELHORNIGHCKURYJW.AdiabaticexpansionofhighexplosivedetonationproductsUCRL-50422R.LivermoreLawrenceRadiatLabUnivCalifornia1968.6.J.200929S1114-118.HUXiaomianPANHaoWUZihui.NumericalsimulationofthedetonationprocessofcrackedhighexplosiveswithdifferentwidthsofairgapJ.TransBeijingInstTechnolNatSci200929S1114-118.檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿檿1233.、.1.J.20073461-3.WUZongpingYANGHaitao.AdvanceonanalysismethodsofmechanicspropertiesofcorrugatedtubeinvalvesJ.Machinery20073461-3.2.J.200441-4.ZHANGZhengmingWUXinxinHEShuyan.Structuralmechanicalanalysisofthenuclearsafety-relatedvalveJ.Valve200441-4.3.J.2007218-22.ZHANGZhengmingWUXinxin.Mechanicalanalysisofthenuclearsafetyclass1valveJ.Valve2007218-22.4.J.2007418-20.MAHongtaoLIShouquanYUXiaoyang.TheanalysisonfractureofawatersupplyvalveJ.ModManufacturingTechnol＆Equipment2007418-20.5.8Cr20Si2NiJ.1999823-25.LIUXueshengFANZhijinFANGWeietal.Effectofheattreatmentoncarbidesbehaviorofvalvesteel8Cr20Si2NiJ.HeatTreatmentMet1999823-25.6.5Cr8Si2J.20012219-12.LIGuangtianSUNZhenyanZUOXiurongetal.Structureandpropertiesofnewvalvesteel5Cr8Si2J.SpecSteel20012219-12.7BUCHTERHH.M..198825-40.7211