一种带尾翼爆炸成型弹丸的研究

Explosively formed projectile with fins

利用LS-DYNA显示动力分析有限元程序,采用流固耦合方法,对带尾翼EFP的形成过程进行数值模拟。结果表明:该装药结构能形成带有8个尾翼的EFP,带尾翼EFP的长径比是EFP长径比的2.23倍,其头部速度比EFP增加了15%。

Numerical simulation of the forming process of the fin adhered EFP was carried out with the ALE method using LS DYNA. The result indicates that such a charge structure can form EFP with eight fins,the length diameter ratio of EFP with fins is 2.23 times than that of EFP without fins,and velocity increases by 15 percent.