应用数学和力学2024，Vol.45Issue(2)：184-196,13.DOI:10.21656/1000-0887.440084
着角与攻角联合作用下薄芳纶层合板抗平头弹侵彻性能
Synergistic Effects of Impact and Attack Angles on Anti-Penetration Performances of Thin Aramid Laminates
摘要
Abstract
A 3D finite element(FE)simulation model was built to investigate the synergistic effects of impact and attack angles on the penetration resistance of relatively thin aramid laminates to flat-noded bullets.Two scenarios of the impact responses of a 4-mm-thick aramid laminate were calculated,i.e.,considering the im-pact angle alone and considering the impact and attack angles together.The penetration resistance of the aramid laminate was reflected by the residual velocity of the bullet,the ballistic limit velocity and the perforation ener-gy threshold of the target plate.Deformation and damage mechanisms of the laminate under different impact conditions were also analyzed.The main findings are:(ⅰ)the ballistic limit velocity decreases and then increases with the initial impact angle;(ⅱ)with the increasing impact velocity and the decreasing initial impact angle,the changes of the impact angle and the attack angle both tend to decrease;(ⅲ)for a fixed impact angle,a negative attack angle is not conducive to penetration,but a positive attack angle is conducive to penetration.关键词
着角/攻角/芳纶层合板/平头弹/弹道极限速度/穿孔能量阈值Key words
impact angle/attack angle/aramid laminate/flat-nosed bullet/ballistic limit velocity/perforation energy threshold分类
力学引用本文复制引用
季海波,王昕,苏金波,李振,王鹏飞,巨圆圆,卢天健..着角与攻角联合作用下薄芳纶层合板抗平头弹侵彻性能[J].应用数学和力学,2024,45(2):184-196,13.基金项目
国家自然科学基金(11972185 （）
12032010) （）
国家重点实验室开发基金(MCMS-I-0222K01) （MCMS-I-0222K01）
