Experimental Study on Terminal Demolition Lethality of Reactive Fragments

Aiming at the terminal demolition lethality of reactive fragments, the ability of perforation, ignition and detonation for reactive fragments were investigated by experiments in this paper. The result showed that a reactive fragment weighting 2.5 g could perforate the 8 mm-thick LY12 hard aluminum under the collision velocity of 870 m/s, forming penetration holes of a diameter about 1.6~2.0 times diameter of the fragment on target plates. The reactive fragment weighting 10 g could ignite aviation kerosene in the fuel tank shell of 10 mm-thick LY12 hard aluminum at a velocity of more than 800 m/s. Furthermore, it could also detonate the warhead charge after perforating through the 6 mm-thick A3 steel plate at a velocity of more than 960 m/s. Therefore, it can be learned through the analysis of the perforation ability of reactive fragments that reactive fragments perforating a certain thickness of target plates can reliably reach its initiation threshold and ignite fuel or detonate charge.