Numerical simulation of the asymmetric bullet penetrating the perforated steel plate

Abstract

In this study, the perforated steel plates were demonstrated to exhibit high efficiency in protecting against small-caliber armor-piercing projectiles. The oblique hipped armor plates combined with the perforated steel plates acted as an armored vehicle exhaust vent protect against 7.62mm bullet. To enhance the efficiency of the vehicle exhaust, the numerical model was built, consisting of the hipped armor plate, the perforated steel plate and the bullet core. By performing a simple test, the efficiency of the model was verified. After the bullet penetrates the hipped armor plate, the shape of its core changed to be asymmetric. The sizes of the perforated steel plate were preliminarily designed in accordance with the statistical results of numerical simulation. Effects of the perforated steel thickness and the impacting positions on the residual bullet were ascertained. The results of this study were conducive to designing exhaust vents.

Study on reliability and reliability sensitivity of special vehicles’ steel plate under the scenario of bullets penetrating

“…Some relevant studies have investigated the anti-bullet penetration ability of the steel plate. Li et al [4] established a binary symmetric finite element model and the material constitutive model. They conducted the high-speed impact finite element numerical simulation, and found that the bullet and the target material parameters significantly affect the outcome compared with the live firing results.…”