Protection Capacity of a Marine Steel against Fragments

Abstract

In the field to evaluate the efficiency of the threat, we establish the protection capacity of a structure steel. For this, we realized any ballistic tests on structural metallic plate against normalized cylindrical fragments. In the goal to evaluate the deformation level induced in the target and in the projectile at the impact and during the penetration, we measured the hardness curve profile closed to the crater boundary and along the projectile axis. Thereafter, we tried to determinate different energy levels induced in the projectile and in the target (projectile impact deformation, projectile shear and target craterisation) and we compared them with the initial kinetic energy. We made also any numerical simulation works and the calculation results are in agreement with the experimental results.