壳体不对称对爆炸成型弹丸成型形态的影响  

Effects of asymmetric shell on explosively formed projectile shape

作　　者：薛伟 张雪梅 田杰 吴元礼 谢志刚[2] XUE Wei;ZHANG Xuemei;TIAN Jie;WU Yuanli;XIE Zhigang(Wuhan Leishen Special Equipment Co.,Ltd,Wuhan 430200,China;Yellow River Institute of Hydraulic Research,Zhengzhou 450003,China)

机构地区：[1]武汉雷神特种器材有限公司,湖北武汉430200 [2]黄河水利科学研究院,河南郑州450003

出　　处：《兵器材料科学与工程》2020年第3期29-34,共6页Ordnance Material Science and Engineering

基　　金：国家重点研发计划资助项目(2018YFC1508400)。

摘　　要：通过ANSYS/LS-DYNA 3D非线性动力学软件研究壳体不对称性对爆炸成型弹丸成型形态的影响,并进行试验验证。结果表明:壳体两侧厚度完全对称时,形成的爆炸成型弹丸沿装药轴线呈对称形态;当壳体两侧厚度存在偏差时,生成的爆炸成型弹丸偏离轴线,且弹丸头部偏向壳体较薄一侧;壳体两侧不对称的厚度差异越大,弹丸偏离轴线程度越大,姿态稳定性越低,有效侵彻动能越小。The influence of asymmetrical shell explosively formed projectile shape was studied by ANSYS/LS-DYNA 3 D nonlinear dynamical software,and the simulated result was verified by experiment. The results show that,as the thickness of both sides of the shell is completely symmetrical along the shaped charge axis,the explosively formed projectile is also ax-symmetric.When there is a thickness deviation on both sides of the shell,the explosively formed projectile deviates from the axis of the charge,and the head of the projectile inclines to the thin side of the shell. When the thickness difference of the shell on both sides of the charge become larger,the degree of the projectile deviating from the charge axis becomes greater and the attitude stability gets poorer,the effective penetration kinetic energy becomes smaller.

关 键 词：聚能装药 不对称壳体 EFP 数值模拟 

分 类 号：O385[理学—流体力学]