An experimental study on the initiation of covered charge impacted by tungsten alloy fragments

By means of the "up-down" method, the initiation or ignition characteristics of comp. B covered with a metal plate was studied when it was impacted respectively by tungsten 93 and zirconium-tungsten fragments. The initiation or ignition mechanism of the charge was analyzed respectively on the two kinds of impacting projectiles. The research results show that the zirconium - tungsten fragment possesses mightier tendency than tungsten 93 in initiating the charge. The initiation of charge impacted by tungsten 93 fragments has mainly a shock wave, while the other case has mainly a mechanics.