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1、PerforationofCompositeLaminateSubjectedtoDynamicLoadsShirleyKalamisGarc´ıa-Castillo,SoniaSanchez-S´aez,CarlosSantiuste,´CarlosNavarro,andEnriqueBarberoAbstractThischapterfocusesonthemodelingofplainwovenGFRPlaminatesunderhigh-velocityimpact.Abriefreviewofthedifferentapproachesavailablei
2、nscientificliteraturetomodelthebehaviorofcompositelaminatessubjectedtohigh-velocityimpactoflow-massprojectilesispresented,andanewanalyticalmodelisproposed.Thepresentmodelisabletopredicttheenergyabsorbedbythelaminateduringtheperforationprocessincludingthemainenergy-absorptionmechanismsfo
3、rthinlaminates:kineticenergytransferredtothelaminate,fiberfailure,elasticdeformation,matrixcracking,anddelamination.Themodelisvalidatedthroughcomparisonwithexperimentaldataobtainedinhigh-velocityimpacttestsonplainwovenlaminatesmadefromglassfiberandpolyesterresin,usingdifferentplatethickn
4、esses.Moreover,anumericalmodelbasedontheFiniteElementMethod(FEM)wasdevelopedtoverifythehypothesisoftheanalyticalmodel.Themodelshowedgoodagreementwithexperimentalresultsforalaminatethicknessbetween3and6mm.However,whenthethicknessreached12mmthemodeloverestimatedtheresidualvelocityofthepr
5、ojectile.Thevalidatedanalyticalmodelisusedtoanalyzethecontributionofthemainenergy-absorptionmechanisms.Forimpactvelocitieslowerthanorequaltotheballisticlimit,themainenergy-absorptionmechanismsarefiberelasticdeformationandfiberfailure,thustheimpactbehaviorofthelaminateisdominatedbythestif
6、fnessandthestrengthoftheplate.Meanwhile,forhigherimpactvelocities,laminateaccelerationisthemainenergy-absorptionmechanism,andthebehaviorofthelaminateisdominatedbyitsdensity.S.K.Garc´ıa-Castillo•S.Sanchez-S´aez•C.Santiuste•C.Navarro•E.Barbero(´)DepartmentofContinuumMechanicsandStructur
7、alAnalysis,UniversityCarlosIIIofMadrid,Avda.delaUniversidad30,28911Leganes,Madrid,Spain´e-mail:ebarbero@ing.uc3m.esS.Abrateetal.(eds.),DynamicFailureofCompositeandSandwichStructures,291SolidMechanicsandItsApplications192,DOI10.1007/978-94-007-5329-77,©SpringerScienceCBusinessMediaDor
