集束钨丝壳体材料特性参数对PELE作用性能影响的数值模拟

Numerical Simulation on Effect of Tungsten Fiber Composite Jacket Material Parameters on Behavior of PELE

为克服目前普遍采用的钨合金壳体横向效应增强型侵彻体（PELE）侵彻能力不足、靶后破片形状与数量不可控、横向毁伤效果不理想等不足,采用集束钨丝制作PELE壳体,并对其穿甲过程进行了数值模拟。与钨合金壳体PELE的作用效果进行对比,发现集束钨丝壳体PELE的侵彻能力和横向毁伤性能均优于钨合金壳体PELE;在本研究所采用PELE结构条件下,钨丝直径取0.5～1 mm、体积分数取40%～60%、粘结相选用镍铁合金时,集束钨丝壳体PELE综合毁伤能力较好。

Tungsten alloy was adopted as the jacket of PELE widely up to now,but it had a series of disadvantages,such as inadequate obdurability,uncontrollable shape and amount of fragments,imperfect lateral damage effect,and so on. To solve the problem,tungsten fiber composite was brought forward to produce penetrator with enhanced lateral effect（ PELE） jacket,and numerical simulations was carried out on the penetration process by PELE with tungsten fiber composite jacket. Results show that the penetrating performance and lateral damage effect of PELE with tungsten fiber composite jacket are superior to those of PELE with tungsten alloy jacket. Further,PELE with tungsten fiber composite has better damage performance,when the diameter of tungsten fibers is between 0. 5- 1 mm,the volume fraction of tungsten fibers is 40%- 60%,and the binder phase is ferro-nickel alloy.