BACK FACE SIGNATURE ERROR FOR BODY ARMOR SOLUTION THAT COMBINES HIGH FLEXIBILITY WITH SUPERIOR BALLISTIC PROTECTION—EXPERIMENT DATA VS SIMULATION

Abstract

The continuous enhancement of weapons with the progress of science and technology required the constant development of protective materials and structures. The most widely applied protective materials are currently ceramic composites, which use ceramic as front plates and other materials as the back plate. Personal body armor is one of important equipment designed to protect human beings from various critical injuries. The severity of such injury is determined by velocity, caliber and weight of the projectile. Back face signature is the result of the energy exchange between the impacting projectile and the human body. The current paper aims to critically review back face signature error between experiment data and numerical simulation for body armor plate consisting of hexagonal shaped SiC Pieces of 10mm thickness and Dyneema SB115 of 15mm thickness against 7.62x39mm “API BZ†threat. Main results of this research indicated that back face signature values are similar in both experiment data & numerical simulation with 8% error percentage.