多边形壳体厚度对带尾翼EFP成型过程影响的数值分析

摘要

基于带尾翼EFP成型机理,利用显式动力分析软件ANSYS/LS-DYNA,建立一个具有特定形状壳体的EFP战斗部模型,研究多边形壳体引导爆轰波作用于药型罩上的规律和作用结果.模拟结果表明多边形壳体 EFP 战斗部尾翼成型效果良好,并且具有一定的对称性,当壳体边长与装药直径之比为0.60~0.65时,成型效果理想.%Based on the mechanism of EFP forming technology with tail fins, an EFP warhead model with a specific shape shell was established, by using the explicit dynamic analysis software ANSYS / LS-DYNA, to study the regularity and results of the polygonal shell guiding on detonation wave.The simulation results show that the EFP warhead with the polygonal shell can form a good and symmetrical EFP with tail fins, as the ratio between the length of shell to charge diameter is from 0.60 to 0.65, the warhead formation is the best.