摘要
采用数值模拟方法开展子弹药以不同落角和攻角撞击混凝土介质的冲击响应的研究,对一定质量、述度的子弹撞击混凝土介质进行仿真计算和实验验证。获得子弹在落速15 m/s、落角60。～90°和攻角不大于5°范围内撞击混凝土介质冲击峰值过载和碰撞作用时间的影响规律数值模拟结果与实验结果吻合较好,研究结果对子弹落地冲击响应理论模型的建立及子弹结构部件的结构强度设计具有参考价值。
Using LS-DYNA software, impact response of submunitions drop on concrete was simulated and tested, with different drop angles and attack ones. The drop law of the maximum overload and the impact action time were obtained in the ranges of 60°-90° drop angles and less than 5° attack ones. The numerical simulation results agreed well with those of test. The study results were useful for establishing an impact response theoretical model of submunitions drop.
出处
《振动与冲击》
EI
CSCD
北大核心
2013年第3期182-187,共6页
Journal of Vibration and Shock
基金
国防基础科研基金(B1020060357)
关键词
子弹药
跌落
冲击响应
数值模拟
实验
submunitions
drop
impact response
numerical simulation
experiments
