Influence of Target Fields on Impact Stresses and Its Deformations in Aerial Bombs

A typical aerial bomb has high explosive packed in a metallic cylindrical shell. The bombs explode due to the detonation of high explosive either on impact or in proximity to the target. The metallic shell on explosion disintegrates into various small fragments which strike the various target fields contributing to the fragmentation effect. The present work mainly focuses on finite element (FE) simulation of aerial bomb impact on target fields like sand, concrete and steel using Ansys explicit dynamics for imported three-dimensional model of aerial bomb using solid edge. FE simulation was carried out to find stresses and corresponding deformations within the bombshell for three different target fields. Further, the impact simulation results were compared for the deformation and stress limits of the bombshell material.