Numerical analysis of ballistic impact performance of two ceramic-based armor structures

Numerical analysis of ballistic impact performance of two ceramic-based armor structures

Blog Article

This paper investigates ballistic performance of two different ceramic-based armor designs using finite element analysis.The first design is a bi-layer armor consists of a ceramic front layer and a Kevlar-29 composite backing layer.The second design consists of a ceramic filled honeycomb front layer and a Kevlar-29 composite backing layer.

3D finite element models are developed with the commercial software Abaqus/Explicit.The models are validated by comparing against experimental results from different sources.Both single-hit and double-hit impacts were carried out using an ogival-nosed Wildbird Foods hardened steel 4340 projectile of mass 5.

5 g.The ballistic performances of the two designs are compared in terms of penetration mechanisms and ballistic resistance.It was found that the presence of honeycomb in the second armor design has a significant effect on its ballistic performance.

The cell walls interrupted the stress wave propagation and confined the fracture in a local area.The ballistic limit of the second Body Lotions armor design in a single-hit impact decreased significantly but the resistance to a second hit did not decrease.