以空腔膨胀理论为基础，针对土壤—混凝土构成的双层介质目标，分析了弹丸在侵彻过程中的动力特性和运动规律，并进行仿真计算，从而为研究弹丸侵彻多层介质目标时的动力学和运动学特性提供了理论基础和分析手段 Based on the theory of cavity expansion, aiming at the target of double-layer medium made of soil-concrete, the dynamic characteristics and movement rules of the projectile in the process of penetration are analyzed and simulated. In order to study the projectile’s penetration into multi-layer medium target The kinetic and kinematic characteristics provide the theoretical basis and analytical tools