45钢动态塑性本构参量与验证(6)

456爆　　炸　　与　　冲　　击　　　　　　　　　　　　　　　第25卷　

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Investigationandvalidationonplasticconstitutiveparametersof45steel

CHENGang,CHENZhong2fu,TAOJun2lin,NIUWei,

ZHANGQing2ping,HUANGXi2cheng

(InstituteofStructuralMechanics,ChinaAcademyofEngineeringPhysics,

Mianyang621900,Sichuan,China)3

Abstract:Dynamicmechanicalbehaviorsof45steelhavesonpressurebar(SHPB)andstaticmaterialtestsystemoverawideJohnson2CookconstitutiverelationshipparametersareTheparametersarevalidatedbycomparisonbetweenthe.Theconsistencybetweenexperimentalobser2vationandnutheparametersobtainedcandescribethelargestrainmechanicalbehaviorof45speeddeformation.

Keywords:solidmechanics;dynamicplasticconstitutiveparameter;Taylorimpact;45steel;SHPB3Correspondingauthor:CHENGang

　　　E2mailaddress:chengang@　　　

　　　Telephone:081622485419