为弄清有攻角动能弹垂直侵彻混凝土靶板的特性,利用非线性动力分析软件LS-DYNA3D,对混凝土靶板与弹体分别选用HJC与Johnson-Cook材料模型,就垂直侵彻情况下攻角对侵彻的影响进行了一系列数值模拟。详细描述了有攻角动能弹侵彻靶板的基本现象,指出了攻角不同时弹头的四类侵彻路径,给出了有、无攻角时竖直方向加速度变化规律,分析了攻角对侵彻深度的影响,比较了不同弹速条件下攻角对侵彻的影响程度。

In order to study the characteristics of kinetic projectile penetrating plumb into concrete target with attack angle, the effects of attack angle on the penetration in the instance of plumb penetration were numerically simulated by the finite element code LS-DYNA3D with HJC and Johnson-Cook material model. The basic phenomena of projectile penetrating with attack angle were described in detail. Four kinds of warhead's penetration path at different attack angle was indicated, the variation regularity of acceleration with attack angle or not in Y-direction was presented, the effects of attack angle on penetration were analyzed, and the effect degree of attack angle on penetration depth in different velocities was compared.