PBX-9501强爆轰产物状态方程的数值模拟  

Simulation of overdriven shock states based on equation of state of PBX-9501 explosive

作　　者：姚阳[1] 谭多望[1] 文尚刚[1] 

机构地区：[1]中国工程物理研究院流体物理研究所冲击波物理与爆轰物理国防科技重点实验室,四川绵阳621900

出　　处：《爆炸与冲击》2009年第5期497-502,共6页Explosion and Shock Waves

基　　金：国防基础科研项目(A1520070075)

摘　　要：利用P.K.Tang的JWL强爆轰产物状态方程改造了DEFEL二维弹塑性流有限元源程序,并用改造后的DEFEL程序模拟了一系列飞片撞击PBX-9501炸药的一维强爆轰过程,给出了炸药驱动二级飞片(铝)的速度。计算得到的产物状态参数与实验测量结果符合较好,验证了增加修正项的新状态方程可较好地描述高能炸药的超压爆轰的高压流体动力学过程。A 2-D finite element code was adopted to compute several one-dimensional overdriven shock states of flyer plates impacting on PBX-9501 explosive with the JWL（Tang） equation of state.And the velocities of the flyer plates driven by the explosive were presented.The results of numerical simulation agree well with that of the experiment by Fritz J N,et al.The new equation of state with correction and the adapted code are verified.

关 键 词：爆炸力学 产物状态方程 强爆轰 炸药 

分 类 号：O381[理学—流体力学]