机械强度学科发展趋势

DEVELOPMENTTRENDSOFMECHANICALSTRENGTH12(1.华东理工大学机械与动力工程学院,上海200237)(2.西南交通大学牵引动力国家重点实验室,成都610031)TUShanDong1ZHAOYongXiang2(1.SchoolofMechanicalandPowerEngineering,EastChinaUniversityofScienceandTechnology,Shanghai200237,China)(2.StateKeyLaboratoryofTractionPower,SouthwestJiaotongUniversity,Chengdu610031,China)200530,5TH114Q346TB114AbstractThedevelopmenttrendsofmechanicalstrengthstudyarereviewedbasedonthe2005NationalSymposiumonFrontiersofMechanicalStrength.Fivefrontierfieldsareconcludedaccordingtothepresentationsofthirtyparticipants,whichincludethereliabilityandsafetyofthestructureandsystemofadvancedandkeymachines,thestrengthandfailuredealingthemicroandnanostructuralsystem,thestrengthandfailureofstructuresservicedundercomplicatedloadingandenvironmentalconditions,thefailuretheoriesofstructuresatmicroandmesoscales,andtheintelligenttechnologiesfornondestructiveinspectionanddiagnosisoffaultsorfailures.KeywordsMechanicalstrength;Failure;Frontierfield;TrendCorrespondingauthor:TUShanDong,Email:[e-mail],Tel:[phone],Fax:[phone]TheprojectsupportedbytheNationalNaturalScienceFoundationofChina(No.50225517and50375130).Manuscriptreceived20050623,inrevisedform20050628.1引言2005521~24,!∀2005#,,,!!∀#,;∀#,∀#,,∀#,2,,30,32(1),2022∀#∀#∀#,∀#∀#∀#,,,JournalofMechanicalStrength2005,27(4):554~559,,19632,,,,,,,196111,,,,,20050623,20050628(50225517,50375130)12005Tab.1Speakersandtheirtopicsatthe2005symposiumonfrontiersofmechanicalstrength1,10084Email:[e-mail]2,100083Email:[e-mail]3,100083Email:[e-mail]4,200237Email:[e-mail]5,610031Email:[e-mail]6,10084Email:[e-mail]7Voronoi,710049Email:[e-mail]8,110016Email:[e-mail]9,200030Email:[e-mail]10,10084Email:[e-mail]11,710072Email:[e-mail]12U,710072Email:[e-mail]13,710049Email:[e-mail]14,610031Email:[e-mail]15,100022Email:[e-mail]16,710049Email:[e-mail]17,100084Email:[e-mail]18,212013Email:[e-mail]19,110006Email:[e-mail]20,300072Email:[e-mail]21,200093Email:[e-mail]22MEMS,100022Email:[e-mail]23,300072Email:[e-mail]24,300072Email:[e-mail]25,450002Email:[e-mail]26,710072Email:[e-mail]27,300072Email:[e-mail]28,621900Email:[e-mail]29,710071Email:[e-mail]30,430074Email:[e-mail]31,100006Email:[e-mail]32,710055Email:[e-mail]274:5552学术前沿2.1,,22,4:(1)(2)(3)(4),∀#,∀#,##;;,,,,70%,,,[1~6]()()[7],:(1)(2)(3)(4)()2.2∀#,,MEMS(microeletromechanicalsystem)∀#,,;;,;MEMS,MEMS,,,,,2.3;,,;5562005,200,,()[8~14]:(1)(2)(3)2.4,,,,80%90%,,,1975Pearson[15],,,:(1)()(2)(3)2.5;;;,,(nondestructivetesting,NDT),[16],[17~19]:(1)(NDT)(2)()(3)NDT3战略研究小组的研究工作∀#,,∀#∀#∀#∀#∀#∀#(2),5:(1)(2)(3)(4)(5)4结束语1)2005,30,32,2)30,5274:5572Tab.2Keyscientificissuesrelatedtosignificantmechanicalequipmentandhightechdevelopment:~1000∃;~30MPa,()*()*()*()~450∃,~1030∃,:*()*(),1016mm10MPa,,***:(10)(2000∃),,(MSD)~1500∃,20,,(1010):***()**(WFD)***(%200kmh,),(%1)(,,)*()**:(108)~1100∃,();**():535∃,10MPa,()()600∃,~30MPa*()*()*():260∃~300∃,400∃~700∃,750∃~1000∃,,*()*()*()*()*750∃~950∃,(,)*()(MEMS),1000∃,**()****:;,*:*:,,*:;5582005References1EuropeanVehiclePassiveSafetyNetwork2(EVPSNII),Report:Task5.6AircraftSafety,February25,2004.2DraftISOStandardISOTC98SC2WG6,DocummentB15.Assessmentofexistingstructures.Int.StandardsOrganization,2000.3JeongDY.Correlationsbetweenraildefectgrowthdataandengineeringanalyses.U.S.DepartmentofTransportation,2003.4API579.Recommendedpracticeforfitnessforservice.Washington,DC:AmericanPetroleumInstitute,2000.5R5.Assessmentprocedureforthehightemperatureresponseofstructures,ProcedureR5,Issue2.Gloucester:NuclearElectricLtd,1997.6R6.Assessmentoftheintegrityofstructurescontainingdefects,ProcedureR6Revision4.Gloucester:NuclearElectricLtd,2000.7ZhongQP,ZhangZ,WuHS.Failureisthemotherofsuccess(safety).ChinaMech.Eng.,2000,11(12):70~72(InChinese)(,,.()().,2000,11(12):70~72).8TuSD.HighTemperatureStructuralIntegrity.Beijing:SciencePress.2003(InChinese)(..,2003).9ZHAOYX.Reliabilityandsafetytechnologiesforthestructurestrengthofrailwayvehiclesinthefuture.J.oftheChinaRailwaySoc.,2003,25(2):92~97(InChinese)(..,2003,25(2):92~97).10GuoWL.Mechanicalstrength.In:WenSZ,LiM,eds.,Researchondevelopmentstrategyofmechanicalscience,.Beijing:TsinghuaUniversityPress,2003:56~89(InChinese)(..:,,,:,2003.56~89).11TuSD.Surfacefailureandpreventionofmaterialsinservice.In:XuBS,Chinesematerialsengineeringencyclopedia,Beijing:ChemicalIndustryPress,2005(..:,:,:,2005).12YuMH.Advancesinstrengththeoriesformaterialsundercomplexstressstateinthe20thCentury.ApplMechReview,2002,55(3):169~218.13SihGC,TuSD.Why,whereandwhenitbecomesnecessarytoconsiderchemicalreactioneffectinmechanics.In:SihGC,TuSD,WangZD,eds.,StructuralIntegrityandMaterialsAgeing,Shanghai:ECUSTpress,2003.1~18.14TaneikeM,AbeF,SawadaK.Creepstrengtheni