钢板侵彻下电雷管损伤特性的数值模拟

Simulation on damage property of electric detonator under steel penetration

摘要:

利用ANSYS/LS-DYNA数值计算软件，研究弹体冲击碰撞钢质靶板过程中某型号电雷管的损伤特性。结果表明，在冲击碰撞过程中，子弹受到230 000 g，45 μs的过载加速度，导致电雷管火工品各部件之间发生相对移动，其外壳受到较大应力，药柱最大压缩幅度约2.7%，火工品的损伤模式为机械材料损伤。仿真计算结果对电雷管的损伤特性研究和结构防护具有重要的指导意义。

Abstract:

Initiators function as the starting unit of ammunition, and thus their reliability is crucial to the combat efficiency of the weapon system. ANSYS/LS-DYNA numerical calculation software is used to study the damage characteristics of a certain type of electric detonators when the bullets impact on the steel target plates. The results show that the bullet is subjected to an overload acceleration of 230 000 g and 45 μs during the impact, leading to the relative motion of the electric detonator components; the shell suffers a large stress and the maximum compression rate of the grain is about 2.7%; the damage mode of the initiators is the mechanical material damage. The simulation results are instructive to the damage characteristics and structural protection research of the electric detonators.