HIGH-SPEED PENETRATION OF METAL BLADE PROJECTILES

Experimental results and numerical simulations of flat blade projectiles high-speed interaction with massive semi-infinite duraluminium targets are presented. The studies were made for interaction velocity in the range of 800-1500 m/s, and two values of projectile thickness h, 1.5 and 3 mm. Width and length of the projectiles was 7.7 h and 14 h for the 3mm-thick blades, and 15.5 h and 28 h for 1.5mm-thick blades. Influence of impact velocity on depth H, volume W and shape of the cavern formed in the target was investigated. Influence of the sabot on the results of the interaction was also studied. It was shown that transverse dimensions of the cavern are equal to 5...9 h, while the longitudinal dimensions can be equal to 1.35...2.0 of the plate width. Character of the interaction is significantly affected by angle of incidence. A comparison of results of blade projectile and axisymmetric projectile interaction with target is given.