不同结构穿甲弹弹头侵彻金属靶板性能分析

摘要

In order to analyzes the effect of head shape on the armour -piercing bullet performance , it builds the finite element models of 4 types head shape armour -piercing bullets , simulates their performances based on LS-DYNA, obtains the velocity decay curve and their change rule .The result shows there are obvious penetration deference in these 4 bullets at diagonal direction into the target board , and that the structure scheme A has the smallest speed limit and smallest change angle of speed direction , the A structure has the most penetration per-formance .%为了研究头部形状对穿甲弹侵彻性能的影响，首先建立了4种头部形状穿甲弹的有限元模型，然后应用LS-DYNA软件对模型进行了数值仿真和分析，获得了它们的速度衰减曲线及其变化规律。结果表明，4种头部形状的弹芯在斜侵彻时的侵彻性能差异明显，结构方案一的弹芯在斜侵彻时的极限速度最小，其最大速度方向改变角也最小，综合侵彻性能最好。