Influence of rotation on damage power of an explosively-formed rod-like penetrator

In order to further improve the damage efficiency of a multiple explosively-formed penetrator warhead, the multiple explosively-formed rod-like penetrator warheads were designed by composite charge and were researched by numerical simulation. Based on the detonation loading control method by composite charge, the liners can be formed to be dense rod-like penetrators. By adjusting the oblique angle of a half-prefabricated liner, the rotation speed of the penetrator is controlled and the stability of its flight attitude in the air is controlled. And then, the damage power of the penetrator was improved. The principle prototypes of the warheads with different oblique notching angles were designed and the static blasting experiments were performed. The comparison between the experimental results and the numerical simulation ones displays that the impact attitude of the explosively-formed rod-like penetrator is the best and its penetration into the steel-45 plate is the deepest, when the oblique angle is 1.5°. At the base of ensuring the formed quality, the penetration power of the rod-like penetrator can be improved significantly by obliquely placing the liner.