NUMERICAL STUDY ON REACTIVE PROJECTILE PENETRATING COMPOSITE SHIELDING TARGET

Based on the LS-DYNA nonlinear dynamic finite element analysis method, the damage behavior of reactive projectile penetrating composite shielding target was studied. From the damage characteristics of the target, typical process and damage mode of reactive projectile and inert projectile penetrating composite shielding target were compared and analyzed. Deflagration reaction of reactive projectile during penetration would cause impact and ablation on the composite shielding target, which showed better penetration ability than inert projectile. From the aspects of impact velocity and target thickness, the influence of interaction conditions on the penetration behavior was analyzed and discussed. The results showed that impact velocity and target thickness would cause great influence on the site of the deflagration reaction of reactive projectile and the mechanical response characteristics of the composite shielding target. The damage of reactive projectile to composite shielding target presented various forms such as bulging, ablation, tearing, perforation and delamination.