截锥型战斗部斜穿靶数值模拟研究

Numerical Simulation of Warhead Oblique Penetrating Target

利用动力有限元程序LS-DYNA对截锥型战斗部的斜穿靶过程进行了数值模拟,分析了穿靶速度、角度、材料性能以及导弹前舱段对战斗部斜穿靶性能的影响。由此提出,可以从增加战斗部材料的强度、韧性和改善战斗部过靶时的姿态等方面来提高截锥型战斗部的穿靶性能,同时还指出设计中应考虑导弹前舱段给战斗部穿靶带来的有利影响。

By using nonlinear finite element analysis software LS-DYND, the process of warhead oblique penetrating the target with various impacting velocity, impacting angle, and material property is calculated and analyzed. It was found that the penetration property of warhead can be improved by increasing the material plastic flow stress and material ductibility and adjusting flight position when warhead penetrates the target. The numerical simulation results show that the deformation of warhead reduces while the front parts of the missile pre-impact the target.