钨锆钛活性破片对间隔靶的毁伤效应

In order to study the coupling damage mechanism of W/Zr/Ti reactive fragments after penetrating a target, a ballistic gun experiment is conducted to investigate the penetration of W / Zr / Ti reactive fragments into a spaced target composed of 6 mm-thick Q235 steel plate and 1. 5 mm-thick aluminum plate. Combined with the impact reaction theory of reactive fragments and the principle of energy conservation, the target deformation energy is calculated and the contributions of chemical energy and kinetic energy to coupled damage are analyzed from the perforation mode of steel targets, the damage mode of after-effect aluminum targets, and high-speed photography of reactive fragments penetrating the spaced targets. The research results show that, the slug and debris cloud cause bulge, perforation, and ablation damage on the aluminum target when an active fragment hits the target at a speed of less than 800 m / s. When the target hits the target at a speed of more than 1 187 m / s, the aluminum target undergoes shear perforation under the action of the front steel target plug, resulting in bulge, cracks, and petal warping under the coupling damage of kinetic and chemical energies of debris cloud. With the increase of the target velocity, the damage area of rear target and the reaction degree of active fragment show an increasing trend, and the contribution of chemical energy to coupled damage gradually increases.