资源描述：
《ComputationalMaterialsScience计算材料科学.pdf》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、ComputationalMaterialsScience48(2010)582–588ContentslistsavailableatScienceDirectComputationalMaterialsSciencejournalhomepage:www.elsevier.com/locate/commatsciCharacteristicsofwindshieldcrackinguponlow-speedimpact:Numericalsimulationbasedontheextendedfiniteelementme
2、thoda,bab,c,e,*b,cdaaJunXu,YibingLi,XiChen,YuanYan,DongyunGe,MengyiZhu,BohanLiuaStateKeyLaboratoryofAutomotiveSafety&Energy,DepartmentofAutomotiveEngineering,TsinghuaUniversity,Beijing100084,PRChinabColumbiaNanomechanicsResearchCenter,DepartmentofEarthandEnvironmen
3、talEngineering,ColumbiaUniversity,500W120thStreet,NewYork,NY10027,USAcSchoolofAerospace,Xi’anJiaotongUniversity,Xi’an710049,PRChinadSchoolofAerospace,TsinghuaUniversity,Beijing100084,PRChinaeDepartmentofCivil&EnvironmentalEngineering,HanyangUniversity,Seoul133-791,
4、RepublicofKoreaarticleinfoabstractArticlehistory:Windshieldglasscrackcharacteristicsareofgreatinteresttovehiclemanufacturers,safetyengineers,Received2February2010andaccidentinvestigators,becausetheycontainimportantinformationonenergymitigation,pedestrianReceivedinr
5、evisedform9February2010protection,andaccidentreconstruction.Weusetheextendedfiniteelementmethod(XFEM)toanalyzeAccepted15February2010themodelproblemoflow-speedheadimpactonawindshieldplate.Boththeradialcrackandcircumfer-Availableonline12March2010entialcrackpropagation
6、sarecharacterized.Aparametricstudyiscarriedouttoinvestigatetheeffectsofimpactspeed,headmass,initialmaterialflaw,materialfracturecriterion,etc.,andcorrelatethemwithKeywords:thecrackdirectionandlength.Itisfoundthatthecriticalaccidentinformation,suchastheimpactspeedWin
7、dshieldordamagestress,canbededucedfromthecrackpatterncharacteristics.AqualitativebridgecanbeGlassExtendedfiniteelementmethodestablishedbetweennumericalsimulationresultandreal-worldaccidentviathecrackgrowthmecha-Low-speedimpactnism.OurstudyshowsthatXFEMisausefultoolf
8、orsimulatingseveraltypesofcracksthatappearduringCrackpropagationquasi-staticindentationorlow-speedimpactofforeignobjectsonwindshieldmaterials.Ó20
