Asymmetric Detonated Gain Fragment Warhead

The paper uses the method of test and numerical simulation combining to study the fragmentation speed, density distribute of directed warhead under eccentric initiation condition and their gain comparing with the centre initiation mode. The study results shows:the eccentric initiation has some convergence function on fragmentation, but isn't very obvious at the target direction. It is very outstanding influence on fragmentation speed. The fragmentation muzzle speed increases with azimuth between a harf circle azimuth. A end eccentric point initiation will be better than the centre initiation. The fragmentation speed at target direction has obvious increase than one under centre initiation condition. The maximum value of gain is about 11%. The gain of the directed warhead under the eccentric initiation condition is obtained through the article's study. The results will provide the beneficial reference for warhead engineering design.