College - Author 1
College of Engineering
Department - Author 1
Mechanical Engineering Department
Advisor
Eltahry Elghandour, College of Engineering, Mechanical Engineering Department
Acknowledgements
Range Master SLO
Date
10-2025
Abstract/Summary
This study explores the bulletproof capabilities of Kevlar composites fabricated using advanced additive manufacturing techniques. Continuous fiber reinforced 3D printing (CFRP) is employed to produce Kevlar-reinforced polymer matrix composites (PMCs) with optimized structural configurations for ballistic protection. The primary objective is to evaluate the impact resistance of these composites against 9mm projectiles through systematic experimental testing. A series of ballistics tests are conducted using a high-velocity gas-gun system to fire 9mm projectiles at varying speeds angles. The tests will be conducted at the San Luis Obispo Range, with projectiles fired at various angles. The effects of fiber volume fraction, reinforcement strategy, and infill patterns on energy absorption and failure modes are analyzed. The experimental data is analyzed to assess penetration resistance, energy dissipation, and damage propagation across different composite configurations. This research contributes to the development of lightweight, high-strength ballistic armor by integrating advanced manufacturing techniques with rigorous impact testing, offering potential advancements in protective gear and defense applications.
October 1, 2025.
Included in
URL: https://digitalcommons.calpoly.edu/ceng_surp/181