Numerical Analysis of Perforation Steel Plates Impacted by Blunt, Conical, Hemispherical, and Spherical Projectiles

Abstract

Penetrating mechanics was developed for military applications and has been applied in the design and production of bulletproof plates, protective armor, warships, and heavy military vehicles. However, the perforated plates are considered a contemporary type of structure. Hence, the issue is about the extent of the effect of perforation of panels on ballistic performance. The impact of different projectile forms on two types of thin steel plates—perforated and non-perforated panels is examined numerically in this paper. The ABAQUS-Explicit finite element system was utilized for numerical simulations, and the perforation process was accurately estimated using the Johnson-Cook fracture criterion. Indeed, all projectile shapes, whether blunt, conical, hemispherical, or spherical, are designed and modeled with wide impact velocities between 200 to 500 m/s. This work takes into consideration plastic properties, the temperature differential created in the plate, and adiabatic shear bands. They concluded, through numerical analysis, that perforated panels can be considered a promising option for use as armor due to several considerations, the most important of which is energy savings as a result of reducing density.