Journal Article

Experimental investigation of the response of gelatine behind the soft body armor

Zhang, Xiaoyun, Xu, Cheng, Chen, Aijun, Luo, Shaomin

2016

Overview

•We study the dynamic behaviors of ballistic gelatine behind the soft body armor experimentally.•The cavity expansion–contraction movement is self-similar and can be approximated as a semi-ellipse.•The pressures obtained from the gauges show that three peak waves exist. Understanding the transient cavity formation and transient pressure in the behind armor blunt trauma (BABT) is of fundamental importance in various research fields. In this paper, the transient response of ballistic gelatine behind the soft body armor subjected to the impacting of pistol bullets was studied. The profiles of the transient cavity in real time were captured by a high-speed camera, while the transient pressures were simultaneously recorded by pressure gauges. We find the cavity expansion–contraction movement is self-similar and can be expressed as a semi-ellipse. The gauges-recorded pressures reveal that three peaks on the pressure–time curve.

• Publisher: Elsevier B.V,Elsevier Limited
• Subject: Armor / Behind armor blunt trauma / Cameras / Cavity evolution / Contraction / Experiments / Forensic ballistics / Forensic science / Forensic sciences / Gauges / gelatin / High speed / High speed cameras / Holes / Pathology / Pressure / Pressure gages / Pressure gauges / Projectiles / Self-similarity / Simulated body tissue / Small arms / Soft body armor / Studies / Temperature effects / Transient pressure / Transient pressures / Trauma / Velocity