Numerical analysis method for the RC and geological structures subjected to extreme loading by energetic materials

Abstract

This paper proposes and demonstrates a numerical simulation method suitable to analyze the local damage and dynamic response of the structures composed of the reinforced concrete (RC) and/or the geological materials subjected to extremely severe loading by the energetic material like high explosives (HE). After the description of the numerical simulation method, the former part of this work attests that the present method has an enough accuracy to simulate the dynamic behavior of the RC structures subjected to the impulsive loading, through comparison of numerical analysis results with those of reference experiments. In the latter part of this work, a three-dimensional numerical simulation is performed by using the same analysis code as applied in the former part, but for much more complicated physical system. Through the discussion on the numerical simulation results the effectiveness of the present method is demonstrated from the viewpoint of the explosion safety and the structural integrity evaluation.