3D numerical simulation of explosion in concrete

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.