半穿甲弹侵爆复合防护结构仿真分析

Simulation Analysis of Composite Protective Structure of Semi-Piercing Projectile Penetrating and Exploding

使用LS-DYNA软件对半穿甲弹侵彻爆炸综合毁伤钢/陶瓷/纤维/钢复合防护结构进行仿真分析,并使用多物质ALE算法模拟侵彻爆炸过程,由靶后20 cm处的冲击波压力大小判断是否会对防护内的设备造成损伤。经分析,钢/陶瓷/纤维/钢厚度配比1∶4∶2∶1防护结构抗侵爆性能最好,复合防护结构想要有足够的抗侵爆能力,则陶瓷层后要提供足够的支撑,且陶瓷层前的面板不能过厚。

The LS-DYNA was used to simulate the comprehensive damage to the steel/ceramic/fiber/steel composite protective structure of the semi-armor piercing projectile.The multi-material ALE algorithm was used to simulate the penetration and explosion in one process.The magnitude of the shock wave pressure at 20 cm behind the target was obtained,and it was used to judge whether it would cause damage to the equipment in the protection.After analysis,the steel/ceramic/fiber/steel thickness ratio 1∶4∶2∶1 protective structure has the best resistance to penetration and explosion,for the composite protective structure to have sufficient resistance to penetration and explosion,the back plate of the ceramic layer must provide sufficient support,and the front panel of the ceramic layer cannot be too thick.