动能弹侵彻混凝土介质的一种工程计算方法

Engineering Method for Penetration Depth of Projectile Normal into Concrete Target

依据柱形空腔膨胀理论,并结合 Mohr-Coulomb 准则,推导了弹丸对混凝土介质的侵彻过程中作用在弹丸头部的轴向阻力,并利用运动微分方程求得弹丸侵彻混凝土介质的侵彻深度。并与质量4.43kg、直径57mm、CRH=4的卵形弹丸垂直侵彻混凝土介质的试验结果进行了比较,两者吻合较好。

According to the cylindrical cavity-expansion and Mohr-Coulomb,the resulting axial resistant force on the projectile nose is obtained when penetrating into concrete target and the penetration depth is calculated by movement differential equation.The calculated result are well in accord with the experimental data,and the method is practical for ready application.