Structural Optimization and Ballistic Mechanism Analysis of Hybrid Bulletproof Composite

Based on the mechanical anisotropy of high-performance fibers of aramid,S-glass,carbon fiber,and the failure characteristics of targets,composites reinforced by aramid,S-glass or carbon fiber woven fabrics respectively and hybrid composites reinforced by combination of those fabrics were prepared.To improve the ballistic performance,the projectile energy absorption capability,resin mass fraction and stacking sequence were experimentally studied and optimized.The research results show that at about 20%resin mass fraction,the best ballistic performance can be obtained.After stacking sequence optimization,the hybrid composites with better ballistic performance are those with more shear and compression resistant inorganic carbon or S-glass fabrics lying in the frontal side and more tension resistant organic aramid fabric lying in the distal side of the composite target,even higher ballistic performance can be achieved by hybrid composite reinforced by carbon/S-glass/aramid fabrics where aramid fabric lies in the distal side of the composite target.