有限元法在高速碰撞模拟中的应用

Application of finite element in the simulation of high-speed impact

摘要:

在试验数据分析的基础上,应用LS-DYNA三维动力有限元程序对高速弹丸撞击铝板的三维数值模拟。通过计算结果与实验结果的比较,证明采用合理的材料参数和物理模型有限元法能够直观地分析弹靶的详细相互作用过程,且两者在宏观物理特征上基本吻合。

Abstract:

Based on those experimental data, the processes that high-speed projectiles impacting aluminum alloy plate are simulated by using LS-DYNA three-dimensional finite element code. By comparing results between numerical simulation and experiment, the program can be used to directly reproduce interaction process well through choosing appropriate material parameters and physics model. The physics character obtained from simulation analysis accords with that summarized from testing.