Optimized design of biconical liner by orthogonal method

A biconical liner was optimized to improve its penetration ability. Its formation and penetration mechanism was studied through numerical simulation and experiments. And the influence of different liner geometry sizes on the jet performance was analyzed using the orthogonal method. The liner formed the high-speed jet with an explosively formed projectile. The small angle 2 αremarkably influenced the jet speed which was inversely proportional to 2 α. And the liner thickness t' and large angle 2 βhad highly significant effect on the projectile speed. The liner was optimized at t'=0.14 cm, 2 α=50°, 2 β=135°, N=0.4 or 0.5, when its jet speed respectively is at 6.613 m/s and 6.839 m/s and projectile speed is at 2.247 m/s and 2.095 m/s, steel target penetration is at 8.24 cm and 8.31 cm, and aperture is in 2.12 cm and 2.08 cm. The results show that target is penetrated by the high-speed jet and high-speed projectile resulting into double damages. The penetration ability is improved greatly.