为了降低组合式MEFP战斗部相邻EFP弹丸的干扰,选取了具有隔爆性能的EPS泡沫,运用显式动力学分析软件LS-DYNA,对组合式MEFP战斗部填充不同密度EPS泡沫时EFP弹丸成型进行仿真和试验研究,分别选取了密度为0.02g/cm³、0.03g/cm²、0.04g/cm²、0.05g/cm²、0.06g/cm³和0.08g/cm³的EPS泡沫作为隔爆介质研究爆炸成形弹丸的成型姿态和发散角。研究表明,泡沫密度在0.04g/cm³隔爆性能最好,随着密度的减小或增大,泡沫的隔爆性能均降低,爆轰波的干扰增大。

In order to reduce the interference of the adjacent EFP projectile of the combined MEFP warhead, the EPS foam with explosion-proof performance was selected, and the simulation and experimental study on the formation of EFP projectile with different density EPS foam was carried out by using the explicit dynamic analysis software LS-DYNA. The density of 0.02 g/cm³ 0.03 g/cm³、0.04 g/cm³ 0.05 g/cm³0.06 g/cm³ and 0.08 g/cm³ EPS foams were used as flameproof media to study the forming attitude and divergence angle of explo-sively formed projectiles. The research shows that the foam density is the best at 0.04g/cm3. With the decrease of the density and the in-crease of the foam's flameproof performance, the detonation wave interference increases.