Energy absorption analysis of aramid composite during blunt projectile impact

In this work, a numerical model for aramid composites is experimentally validated in terms of permanent deformation, energy absorption and damage mechanisms for ballistic applications. Novel experimental and numerical results of non-perforating ballistic impacts with blunt projectiles are presented. The resistance forces and absorption energy by the specimen are measured for different impact velocities. A postmortem analysis of the failure mechanisms is performed using computed tomography and a profilometer device. The numerical model is used to analyze the influence of impactor mass and impact velocity below the ballistic limit.

Automated summary

This work validates a numerical model for aramid composites by studying permanent deformation, energy absorption, and damage mechanisms particularly for ballistic applications. It presents novel experimental and numerical results from non-perforating ballistic impacts with blunt projectiles, measuring resistance forces and absorption energy at different impact velocities. A postmortem analysis of failure mechanisms is conducted using computed tomography and a profilometer device, while the numerical model is utilized to analyze the impact of impactor mass and velocity below the ballistic limit.