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《Cyclic loading of a cracked sheet approaches and results:循環(huán)載荷的裂紋板的方法和結(jié)果.ppt》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、TheasymptoticstudyoffatiguecrackgrowthbasedoncontinuumdamagemechanicsZhaoJ.,ZhangX.Theasymptoticstudyoffatiguecrackgrowthbasedondamagemechanics//Engn.FractureMechanics.1995.V.50.1.P.131-141.LiJ.,RechoN.Methodesasymptotiquesenmecaniquedelarupture.Paris:Herm
2、esSciencePublications,2002.262p.AstafievV.I.,RadayevY.N.,StepanovaL.V.Nonlinearfracturemechanics.Samara:SamaraStateUniversity,2001.632p.StepanovaL.V.Mathematicalmethodsoffracturemechanics.Moscow:Fizmatlit,2009.336p.AstafjevV.I.,GrigorovaT.V.,PastuchovV.A.I
3、nfluenceofcontinuumdamageonstressdistributionnearatipofagrowingcrackundercreepconditions/procedingsoftheInternationalColloquium?Mechanicsofcreepbrittlematerials2?,UniversityofLeicester,UK,1991.P.49-61.Theasymptoticstudyoffatiguecrackgrowthbasedoncontinuumd
4、amagemechanicsConsiderafatiguegrowingcracklyingonthex-axiswiththecoordinateoriginlocatedatthemovingcracktipTheasymptoticstudyoffatiguecrackgrowthbasedoncontinuumdamagemechanicsTheessenceofcontinuumdamagemechanicsischaracterizedbymaterialdeteriorationcouple
5、dconstitutiveequations.Undertheassumptionoflinearelasticityastiffnessreductionbasedstress-strainrelationshipisappliedasThekineticlawofdamageevolutionTheequilibriumequationsTheasymptoticstudyoffatiguecrackgrowthbasedoncontinuumdamagemechanicsThecompatibilit
6、yequationTheconstitutiveequationsTheconstitutiveequationsforplanestressconditionsTheconstitutiveequationsforplanestrainconditionsTheasymptoticstudyoffatiguecrackgrowthbasedoncontinuumdamagemechanicsThetraditionaltractionfreeconditionsoncracksurfacesTheAiry
7、stressfunctionTheAirystressfunctioncanbepresentedintheformTheModeIstressfieldcomponentsatthecracktipbehaveasfollowsTheasymptoticstudyoffatiguecrackgrowthbasedoncontinuumdamagemechanicsThedamagefieldaroundthecracktipcanbepresentedasThestraincomponentsaregiv
8、enasFromthecompatibilityequationonecanobtain(forplanestress)onecanobtain(forplanestrain)TheasymptoticstudyoffatiguecrackgrowthbasedoncontinuumdamagemechanicsThedamageevolutionlawallowstoobtainThesymmetryofthe