对厚水层及多层间隙金属靶平面斜侵彻全物理过程的数值模拟研究

Numerical Simulation of Plane Oblique Penetration into Multi-layer Target of Thick Water and Spaced Metals

2D平面斜侵彻的数值模拟 ,可再现对应的 3D斜侵彻中最严重非对称受力面内的终点弹道效应 ,并为近似估算 3D斜侵彻等效弹迹及等效扩孔横截面积提供基础数据。利用重新设计和改造的LTZ 2D程序 ,解决了阻抗差异大的多物质厚靶的平面斜侵彻的计算问题 ,得到了定性上合理、定量上适用的结果。

2D numerical simulation of plane oblique penetration gives terminal ballistic effect in severe asymmetric loading plane corresponding to 3D oblique penetration, and provides basic data for estimating the equivalent ballistic path and cross section area of the hole formed during 3D oblique penetration. But, for thick target, especially for the thick target of multiple materials with very different impedances, the calculation on plane oblique penetration is very difficult. With LTZ-2D code, the difficult problem was solved, and the qualitatively reasonable and quantitatively applicable results were obtained.