铜、钼形成EFP和JPC毁伤元对比研究

为研究纯钼材料对爆炸成型弹丸(EFP)和聚能杆式射流(JPC)成型的影响,基于EFP和JPC双模战斗部结构,设计紫铜药型罩、等体积钼药型罩和等质量钼药型罩3种研究方案,采用LS-DYNA软件和X光摄影试验对比研究钼毁伤元和铜毁伤元。结果表明:钼材料在JPC毁伤元成型过程中表现出良好的塑性性能; 与铜罩相比,等质量钼JPC毁伤元速度提高10.5%,侵彻孔径提高1倍,钼EFP毁伤元密实度小,动能提高2.7%～5.9%,侵彻孔径提高9.2%,侵彻深度降低20%。

Comparative Study on EFP and JPC Penetrators Formed by Copper and Molybdenum

In order to study the effects of pure molybdenum on the formation of explosively formed projectile(EFP)and jetting projectile charge(JPC),three research shaped charges,such as copper liner,equal volume molybdenum liner and equal mass molybdenum liner,were designed based on the dual-model warhead structure of EFP and JPC. LS-DYNA software and X-ray test were applied to the comparative study of molybdenum penetrator and copper penetrator. The results show that molybdenum has fine plastic properties in the forming of JPC. Compared with the copper liner,the velocity of equal mass molybdenum JPC increases by 10.5%; the aperture of penetration increases by 1 time; the compactness of molybdenum EFP is smaller; the kinetic energy increases by 2.7%～5.9%; the penetration aperture increases by 9.2%; the penetration depth reduces by 20%.