中文摘要：

采用混凝土材料的累积损伤本构模型，用自编三维数值模拟程序（MMIC3D）对炸药（弹体）不同预埋深度、不同药量在混凝土中爆炸对其破坏效应进行了模拟研究，并考虑含自由面的情况，研究了混凝土中爆炸后爆炸场的形成、应力波的传播过程，给出了混凝土中空腔的形状与发展规律，对其数值结果用Visc2D和Visc3D动态显示了无限介质以及半无限介质中空腔的形成与发展、表面的运动规律和爆炸形成漏斗坑的过程，得到了与物理分析和理论分析一致的结果．

英文摘要：

Based on cumulating damage model of concrete, the damage effect of explosive in concrete was simulated by the three dimensional simulating code MMIC3D under different buried depth and weight of dynamite （warhead）, and considered including free surface. And the stress wave propagation and the formed process were studied in the concrete explosive field of the infinite or the semi-infinite. The moving images of computational results dealt with the Visc2D and the Visc3D software illuminate the development of the hollow, the formation of the pit and law of the surface motion form. Some results in accordance with physical and theoretical analysis were obtained.