半穿甲弹侵彻爆炸综合毁伤纯钢靶的数值仿真研究

Numerical Simulation Study on Comprehensive Damage of Pure Steel Target by Semi-Piercing Projectile Penetration and Explosion

为了研究半穿甲弹在极限穿深下对钢靶的爆炸毁伤效应,采用ANSYS/LS-DYNA动力学软件对半穿甲弹侵彻钢靶过程进行仿真分析。通过二次建模还原钢靶穿孔形态,进一步采用流固耦合算法对不同侵彻速度下的半穿甲弹爆炸毁伤过程进行数值模拟分析。结果表明,在半穿甲弹的侵爆综合毁伤作用下,半穿甲弹侵爆综合毁伤能力随侵彻速度的增加而增大;同时,获取了靶板后方20 cm处的冲击波压力大小,为防护设备损伤情况提供了重要判据。

In order to study the explosion damage effect of the semi-armor-piercing projectile on the steel target at the extreme penetration depth,this paper used ANSYS/LS-DYNA dynamics software to simulate and analyze the process of the semi-armor-piercing projectile penetrating the steel target.The secondary target model was used to restore the perforation shape of the steel target,and the fluid-structure coupling algorithm was further used to numerically analyze the damage process of the semi-armor-piercing projectile at different penetration speeds.The results show that under the comprehensive damage of semi-armor-piercing projectiles,the comprehensive damage capability of semi-armor-piercing projectiles increases with the penetration speed.At the same time,the shock wave pressure at 20 cm behind the target plate is obtained,which is the protection equipment damage situation and provides important criteria.