本文基于—维弹—塑性波在固体长杆中的传播与干涉理论,在弹、目标材料具有线弹—塑性加工硬化模型等基本假设条件下.推导出较高速度垂直碰撞时长杆穿甲弹发生大塑性变形—冲蚀性破坏过程中的应力、应变、质点速度,弹杆破损速度及剩余弹长等有关计算公式.设计了BCY及BASIC计算程序,计算结果有助于对穿甲过程中弹体破损的了解,对长杆穿甲弹设计也有一定的参考价值. Based on the theory of propagation and interference of --wave-plastic-plastic wave in solid long rod and the basic assumptions of elastic deformation and elastic deformation of the target material with linear elastic-plastic work hardening model, Plastic deformation - erosion damage process of stress, strain, particle velocity, rod breakage rate and the remaining length of the elastic deformation of the formula designed BCY and BASIC calculation program, the calculation results help paracentesis armor piercing process Broken understanding of the long armor armor pier design also has some reference value.