本文用改进的HELP二维计算程序，流体弹塑性力学模型，计算了复合弹体高速撞击岩体问题。
Using the elastic-plastic hydrodynamic model, a problem of a composite high velocity projectile impacting at the rock is calculated by the modified two-dimensional HELP code.
在这个计算中，采用了流体——弹塑性变模量模型，使用了拉格朗日坐标有限差分方法和人造粘性，获得了冲击波、空腔和波形参数，并分析了这些参数。
In this computation a fluid-elastic plastic model and a finite difference method of Lagrange coordinate are used The parameters of shock, cavity and waveform are obtained and analysed.
对二维弹塑性流体力学有限元计算中的非结构三角网格，提出了一种简单、实用的全自动网格重分方法。
A simple and useful fully automatic grid rezoning method, for unstructured triangular grids in the 2d finite element computation of elastic plastic fluid mechanics, is presented.
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