预扭钨弹侵彻厚钢靶的三维数值模拟

NUMERICAL SIMULATION OF PRE-TWISTED TUNGSTEN PROJECTILE PENETRATING STEEL TARGET

对预扭转与未扭转钨弹侵彻厚钢靶进行了三维数值模拟 .预扭转钨弹由于其长杆的加工硬化效应 ,具有外硬内软、外脆内韧的特性 .对数值模拟结果的分析表明 。

This paper numerically simulates pre twisted tungsten heavy ailoy projectile and usual tungsten heavy alloy projectile normally penetrate thick steel target using 3D code MSC/DYTRAN by finite element method.Pre twisted tungsten projectile is soft inside and hard outside because of long rod's work hardening effect.Numerical results show that pre twisted tungsten projectile has better penetrate performances than usual tungsten projectile because of long rod's self sharpening phenomenon.