钢板局部接触爆炸破片形成过程分析  

Analysis on Fragment Formation Process of Local Contact Blasting

作　　者：刘飞[1] 唐献述[2] 任新见[1] 

机构地区：[1]总参工程兵科研三所,洛阳471023 [2]桂林空军学院,桂林541003

出　　处：《爆破》2010年第4期5-9,17,共6页Blasting

基　　金：南京科技创新工作站项目(编号:NJCX-RW-20030235)

摘　　要：对钢板进行局部接触爆炸试验,分析了钢板破坏的主要特征。在此基础上基于AutoDyn进行数值计算,剖析了破片的形成过程,计算出破片初速度并与基于金属材料临界破坏功理论估算出的破片速度进行比较。接触爆炸破坏试验和数值模拟结果验证了用绝热剪切破坏理论解释钢板接触爆炸破片的生成现象是合适的。The local contact blasting tests on steel plate were carried out and analyzing the main characteristic of steel plate destory.The numerical simulation was done by AutoDyn on this basises and analyzed the formation progress of fragments.The initial velocity of fragments by calculation was compared with the estimated velocity by critical failure work theory of metal material.The results of tests and numerical simulation show that the adiabatic shear band theory is suitable to explain the formation of fragments in contact blasting with steel plates.

关 键 词：接触爆炸 贯穿 有限元 破片 

分 类 号：O383[理学—流体力学]