关于投射弹体对均质土体侵彻深度的近似计算

探讨高速弹体对半无限空间均质土体的侵彻效应，把弹体侵入过程划为两阶段．以抗剪强度确定弹体侵入时土体的极限抗力，并考虑弹体与土体相对运动和摩擦引起的抗侵彻力．求解弹体减速运动的常微分方程，提出侵彻深度与落弹参数和土性指标的关系式

Approximate Calculation on Penetration of Projectile into Uniform Earth

The penetration effect of high-speed projectile into half-space of uniform earth is discussed,and the process of penetration is divided into two stages. The limiting resist-force is determined with shear strength of earth while the projectile intrudes into it,and the force resisting penetration caused by relative movement and friction between the earth and projectile is explained. Movement equation of the projectile is solved,and a formula estimating penetration depth with parameter of the projectile and earth is presented.