Abstract:Within velocity range from 765m/s to 1766m/s, Q235 steel target penetration experiment of long rod projectile made of reinforced tungsten fiber with 80% volume fraction/Zr-based bulk metallic glass (BMG) composite material was carried out. The residual projectiles were observed and analyzed by integrated macro-meso metallographic analysis, the failure mode of shell composite material was studied. Penetration experiments show that when the penetration velocity is greater than 1000 m/s, amorphous Tungsten fiber presents a head shape self-sharpening ability and displays excellent penetration performance. Shell material deformation and damage occur mainly at the shell head edge layer with characteristics of localization and sharpening. The edge thickness of rod head maintains dynamic equilibrium in the whole process of high-speed penetration. Due to the amorphous matrix, shell material is prone to shear failure and forms mass erosion by the flow, which results in self-sharpening in the shell head edge layer.
80%钨纤维增强锆（Zr）基块体金属玻璃复合材料长杆弹侵彻钢靶实验研究
