摘要
采用显式动力有限元程序对T.B￠rv ik等做的半球形头部杆式弹丸贯穿12mm厚钢靶板实验进行了二维数值模拟,得到了侵彻贯穿过程中的主要物理图象和曲线。计算结果表明,贯穿过程中的主要物理数据与实验测量结果基本一致。在此模拟基础上分析了弹丸长细比、弹丸材料、靶板厚度等因素对靶板塑性弯曲响应和穿靶后弹丸剩余速度等的影响,从而为优化弹丸、靶板设计提供参考。
The experiments of perforation of 12mm thick steel plates by 20mm diameter projectiles with hemispherical noses, made by T. BCrvik, et al, are 2D simulated with explicit finite element software. The main physical figures and patterns are obtained and the results of simulation are discussed. The simulation results basically agree with the data of the experiments. The effects of the L/D ratio of projectile, the material of projectile and the target thickness on dynamic plastic bending response for target and the residual velocity of projectile are studied, which provide some reference for the design of projectiles and targets.
出处
《弹箭与制导学报》
CSCD
北大核心
2005年第3期57-59,63,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
爆炸灾害预防
控制国家重点实验室(北京理工大学)开放基金资助项目(KFJJ03-5)
关键词
贯穿
数值模拟
影响因素
冲塞
剩余速度
perforation
numerical simulation
influence factors
plugging
residual velocity
