Evaluation of perforation holes and ejecta from 6000 series aluminum alloys in hypervelocity impacts

Abstract

Hypervelocity projectile perforation behavior of 6000 series aluminum alloys in the subcommittee of The Japan Institute of Light Metals was examined and compared commercial 6061 aluminum alloy. A two-stage light-gas gun was used for impact experiments at high velocities. Yield stress clearly affected perforation hole area. Ejecta length and the cumulative number of ejecta was almost the same among four specimens. Ejecta cone shape was also the same.