穿甲弹结构设计与侵彻性能仿真研究

Numerical Simulation Study on Penetration Performance of an Armor-piercing Bullet

基于杆式穿甲弹弹头形状对子弹穿甲效果的影响,设计了一种弹头结构为多层片状穿甲块和穿甲环结合的穿甲弹。应用LS-DYNA非线性有限元分析软件,对其侵彻三层间隔靶板的情形进行了数值仿真。通过在不同速度下的仿真发现,该子弹能够适应较宽的速度范围,弹头结构可以降低压缩应力波的强度,在侵彻第一层靶板时弹体得到了较好的保护。同时子弹姿态稳定,降低了弹体的跳飞趋势。计算结果为弹体结构优化设计提供了重要依据。

Based on the effect of the shape of rod armor-piercing warhead on armor penetration, a new armor-piercing bullet whose head structure is the combination of multilayer armor-piercing blocks and amour-piercing ring was designed. Using LS-DYNA, the penetration against three-layer spaced metal plates was numerically analyzed. Through analyzing penetration performance under different velocities, it can be found that the bullet has a large-scale adaptive velocity and the intensity of compress stress wave is reduced the second projectile is well protected and the ricochet trend is weakened effectively. The simulation results are referable to bullet design.