圆头弹对均质装甲板侵彻的数值模拟

Simulation of Projectile with Rounded Nose Shape Penetrating the RHA Plate

本文利用我们发展的二维流体弹塑性Lagrange有限元程序EPIC-2,尝试了群组单元分区技术、刚滑移线技术及沙漏控制技术,对高速圆头弹对均质装甲板撞击问题进行了初步计算。说明了发展后的EPIC-2程序有较强的处理大变形的能力,对流体弹塑性模型也进行了讨论。

In this paper, using two-dimensional elastic-plastic hydrodynamic Lagrange finite element method code EPIC-2 which we have been developing. Those techniques of group, rigid slide line, hourglass resistence are tried for preliminary calculation of high velocity projectile with rounded shape on the RHA plate. The results indicate the code developed can deal with severe distortions sufficiently. The elastic-plastic hydrodynamic model is also discussed.