摘要
运用LS-DYNA对不同边界的侵彻过程进行了数值仿真,将仿真得到的侵深、偏转角,与按公式计算进行对比,表明考虑自由边界约束的侵彻深度比无反射边界时的侵彻深度大,且倾角对侵彻深度和偏转角的影响程度随着倾角的增大逐渐增大。将仿真结果与试验数据对比,验证了边界约束对侵彻深度的影响,为半无限靶与有界靶体的侵彻机理研究提供了参考。
The process of projectile obliquely penetrating concrete was simulated by LS-DYNA,and different velocities were applied. The results show that the influence of boundary has effect on the penetration depth and the deflecting angle increase with the increase of oblique angle by comparing the invasion depth and deflection angle from simulation with that calculated with formula. The penetration depth is larger when considering the boundary effect. The comparison of simulation results and experimental data verifies the influence of boundary on the penetration depth,which provides reference for the study of penetration mechanics.
出处
《兵器装备工程学报》
CAS
2016年第6期1-5,共5页
Journal of Ordnance Equipment Engineering
关键词
弹体
斜侵彻
混凝土
边界效应
侵彻深度
projectile
oblique penetration
concrete target
penetration efficiency
penetration depth
