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铝合金5052材料表征模板.doc

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ponents,thekeypointofsolvingtheproblemistobuildcorrespondingphysics-mathmodelinordertoacquirethespecificmaterialfortheautomotivealuminiumalloyinourresearch,weneedtoconsidertheresponsecharacteristicofthematerialmachanismonconditionofrealimpact(suchasdynamicloading,high-stresscondition,includingprimarydefectsordamage,etc).Bythisway,numerousperformancetestandfull-crashtestneedtobeconducted,whichwouldexhaustgreatlaborpowerandphysicalresources,buttheresultisstillthelimiteddiscretdataobtainbytheexperiment,itcanhardlycoverthespaceofallsolutionofthesomeextremeconditionsuchasshearingstresscondtion,highstrainrate(ε-1≥2×102),,binewithnumericalsimulations,itcanexpandthespaceofthemodeleffectively,,mater-ialmachanismmustdescribethematerialchangefromelasticdeformation,elastoplasticdeformation,damageprogession,evolvement,fracture,whichismulti-,variousstrainrate,ausedbyprocessinghistory,,plexproject,,ponentsinmacroperspective,andexpandG-T-Nmodelinmicroperspective,whichexplaintheductilefractureofthealuminiumanditsinitiationandevlovementbymachanismofgrowthofvoids,that

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