弹体侵彻刚玉块石混凝土的理论分析模型

ANALYTICAL MODEL OF DEFORMED PROJECTILE PENETRATING INTO CONCRETE WITH CORUNDUM-BOULDER MATRIX

根据弹体侵彻刚玉块石混凝土后破坏、变形特征,在Taylor理论的基础上,建立了变形弹体侵彻刚玉块石混凝土靶体的理论分析模型。通过Rang-Kutta法数值解,得到了弹丸侵彻刚玉块石混凝土靶体过程中弹体尾部的位移时程、速度时程和侵彻深度计算公式,计算结果与试验数据吻合良好。

Based on the disfeaturement of the projectile measured in experiments and in virtue of Taylor theory, a simplified analytical model of a deformed projectile penetrating into concrete target with corundum-boulder matrix was put forward. The deformation of the target was taken into account. The predicton formula for penetration depth, and displacement and velocity time history of projectile tails were deducted. The calculaton results by using Runge-Kutta numerical method are in good correspondence with the high-speed camera test data.