Simulation on forming and penetrating target plate of tungsten alloy pre-fragment warhead

Abstract

To study the damage ability of tungsten alloy pre-fragments warhead, its forming process is analyzed by static explosion experiment and simulation. The velocity attenuation curve of the spherical pre-fragments is obtained with a ballistic gun firing experiment, where the tungsten alloy pre-fragments penetrate the steel targets at different angles. The results show that in a certain range, the velocity attenuation of tungsten alloy pre-fragments with certain quality is slow, and the influence of air resistance is small. Compared with the theoretical formula, the error rate is also small. At the same time, the penetration angle of tungsten alloy preformed fragments is greater than 30°, which can well complete the penetration of steel targets. The penetration effect is significantly reduced when the angle is less than 30°. The results can provide a theoretical basis for the research of performed fragment warheads.