Experimental Study on the Damage Performance of the Zr-based Amorphous Alloy Jet against Steel Target

Abstract

To study the damage performance of the Zr-based amorphous alloy jet against metal target, the static explosive experiments were conducted with the simulated target of 45# steel in comparison with the copper jet. As shown by the experimental results, the depth of penetration (DOP) of the amorphous alloy jet declines with the stand-off distance after it reaches a level higher than 3.0 charge diameter (CD). Under the same conditions, the DOP of the amorphous alloy jet is less than that of the copper jet, and no plugging is found during penetration of the steel target. Moreover, the perforation area of the amorphous alloy jet increases with the stand- off distance. With a large stand-off, the amorphous alloy jet appears to be dispersed and granular during flight, forming the group of erosion holes on the target plate rather than a huge single perforation. Evident chemical reactions took place during the penetration of the amorphous alloy jet. The combined damage effects of both the penetration and explosion allows the shaped charge to obtain larger perforations, while exerting an adverse impact on the DOP as well.