铝合金5052材料表征(英文版).doc

文档介绍：,thekeypointofsolvingtheproblemistobuildcorrespondingphysics-,weneedtoconsidertheresponsecharacteristicofthematerialmachanismonconditionofrealimpact(suchasdynamicloading,high-stresscondition,includingprimarydefectsordamage,etc).Bythisway,numerousperformancetestandfull-crashtestneedtobeconducted,whichwouldexhaustgreatlaborpowerandphysicalresources,,,highstrainrate(ε-1≥2×102),,,itcanexpandthespaceofthemodeleffectively,,mater-ialmachanismmustdescribethematerialchangefromelasticdeformation,elastoplasticdeformation,damageprogession,evolvement,fracture,whichismulti-,variousstrainrate,ausedbyprocessinghistory,,ple