Mass Loss and Penetration Depth of Hypervelocity Projectiles

Numerous investigations recorded a dramatic decrease in penetration depth at hypervelocity. The is due to the severe mass loss of projectile. mechanics are complicated, so entirely theoretical model still absent. In this paper, we derive semitheoretical formula for by solving equation motion projectile during penetration. result shows that hypervelocity accords with power law. Furthermore, obtain continuous entire velocity domain. results agree well experimental data. critical decreasing also obtained as by-product procedure.