搜索
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:sttu@ecust.edu.cn,Tel:+862164253425,Fax:+862164253513TheprojectsupportedbytheNationalNaturalScienceFoundationofChina(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:huangkz@mail.tsinghua.edu.cn2,100083Email:zhongqp@buaa.edu.cn3,100083Email:fuhuimin@263.net4,200237Email:sttu@njut.edu.cn5,610031Email:yxzhao@home.swjtu.edu.cn6,10084Email:yusw@mail.tsinghua.edu.cn7Voronoi,710049Email:ypshen@xjtu.edu.cn8,110016Email:ehhan@imr.ac.cn9,200030Email:wkjiang@sjtu.edu.cn10,10084Email:shihj@mail.tsinghua.edu.cn11,710072Email:htao@nwpu.edu.cn12U,710072Email:htao@nwpu.edu.cn13,710049Email:hzj@xjtu.edu.cn14,610031Email:xsjin@home.swjtu.edu.cn15,100022Email:xyli@bjut.edu.cn16,710049Email:xsmei@mail.xjtu.edu.cn17,100084Email:suyuan@tsinghua.edu.cn18,212013Email:dingjn@ujs.edu.cn19,110006Email:xieliyang@sina.com20,300072Email:xchen@tju.edu.cn21,200093Email:zhengpinery@126.com22MEMS,100022Email:shangdg@bjut.edu.cn23,300072Email:tyshxu@tju.edu.cn24,300072Email:tyshxu@tju.edu.cn25,450002Email:memhzhao@zzu.edu.cn26,710072Email:jiangjs@nwpu.edu.cn27,300072Email:tywang@tju.edu.cn28,621900Email:yinyihui@sohu.com29,710071Email:jjchen@xidian.edu.cn30,430074Email:qbhuang@public.wh.hb.cn31,100006Email:mlduan@ccs.org.cn32,710055Email:duanzhishan1950@hotmail.com274:5552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