Computational Modelling of Damage and Failures in Composite Laminates

《Computational Modelling of Damage and Failures in Composite Laminates》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、Chapter13ComputationalModellingofDamageandFailuresinCompositeLaminatesJ.N.Reddy1andD.H.Robbins2,Jr1TexasA&MUniversity,CollegeStation,TX,USA2UniversityofMaryland,CollegePark,MD,USAareasfollows.Anintroductionandoverviewoffiber-reinforcedcompositelaminates,withemphasisonthemul-1Objectives

2、andScope431tiscalenatureofthisclassofmaterials,ispresentedin2Introduction:theMultiscaleProblem432Section1.Section2containsanoverviewofmathematical3LaminateTheoriesandModels433modelsthatarecommonlyusedtorepresentthemechanical4ReviewofLiteratureonDamageandbehaviorofcompositelaminates.Th

3、esemodelsconstituteFailures437anaturalhierarchyofmodelsrangingfromthesimplest5CouplingBetweentheMicroscaleandthetwo-dimensionalplatemodelthatonlyrepresentsin-planeMesoscale440behavior,toafullythree-dimensionallayerwisemodelthat6ModelingofProgressiveDamageinincludesdiscretelayertransve

4、rseshearandtransversenor-CompositeLaminates451maleffects.InSection3,anoverviewofdamageandAcknowledgments458failuremodelsthathavebeenusedforcompositelami-References458natesispresented.DiscussionofthecouplingbetweentheFurtherReading460macroscaleandthemicroscaleispresentedinSection4.This

5、micro/macrocouplingisachievedthroughthepro-cessesofhomogenizationandlocalization.Homogenizationistheprocessofdetermininghomogeneousanisotropic1OBJECTIVESANDSCOPEmaterialpropertiesthateffectivelyrepresenttheaver-agebehavioroftheheterogeneousfiber/matrixcompositematerial.Localizationisth

6、eprocessofdeterminingtheThischapterisintendedtoprovideanoverviewofissuesmicroscopicdistributionofstressandstrainbasedonathatareimportantinthecomputationalmodelingofpro-knownmacroscopicsolution.Thesetopicsarediscussedgressivedamageandfailureinfiber-reinforcedcompos-itelaminates.Owingtos

7、pacelimitations,thediscussioninthecontextofbothinfinitesimalandfinitedeformation.mainlyfocusesonthosemodelsandmethodsthathaveFinally,Section5isdevotedtothedescriptionofpossi-beeneffectivelyusedbytheauthorstoaddressthispar-bleapproachesforthemodelingofprogressivedamage.Inticularclassofpr

8、oblem