高速侵彻弹弹头结构设计探索

Structural design of high-speed projectiles

高速弹体侵彻过程中，弹体的分段设计以及弹体头部的自锐化效应有利于提高弹体的侵彻性能。本文探讨了弹头分层结构设计，其间接反映了分段设计和自锐化效应的影响；同时，采用二维拉格朗日弹塑性流体力学有限元程序LTZ-2D数值模拟了弹体的高速侵彻过程。计算结果显示，弹体头部采用分层结构设计有利于提高弹体的侵彻性能。

During the penetration of a high-speed projectile into a steel target, the penetration performance of seg-mented rods and projectiles of self-sharpening materials is better than normal projectiles. In this paper, a new struc-ture of high-speed projectile with laminated top is proposed. To some extent, segmented and self-sharpening effects could be accounted for in this approach. At the same time, the penetration by projectile under high speed is numer-ically simulated using a 2D Lagrangian elasticity-plasticity hydrodynamic code LTZ-2D. It is shown that the pene-tration performance of the projectile with laminated top is better than normal projectiles.