Initiation of Detonation in Explosives by Impact of Projectiles
Keywords:
Detonation, projectiles, explosives, shock waves impact, projectile impact, flyer plate projectiles, flat-ended projectiles, round-ended projectiles
Abstract
This paper presents a study of initiation of detonation in explosives by the impact ofprojectiles. The shock wave produced by the impact of projectiles has been considered as the
stimulus for initiation of detonation. Three types of projectiles, namely (i) flyer plate, (ii) flatended
rod, and (iii) round-ended rod or a shaped charge jet, have been considered to impact and
produce a shock wave in the explosives. Deriving relations for the parameters of impact-generated
shock wave in the explosives and projectiles, and the sound velocity in the compressed explosives,
it has been shown that the difference of kinetic energy of the flyer plate before and after the
impact, which is equal to the total energy of the shock wave in the explosives, leads to critical
energy criterion for shock initiation of explosives. In this study, the critical criterion has been
used to derive the relations for initiation of explosives by a shaped charge jet, Vj
2 D = K0 , where
V j and D denote the velocity and diameter of the jet, and K0 is a constant of the explosive.
Published
2006-04-01
How to Cite
Yadav, H. (2006). Initiation of Detonation in Explosives by Impact of Projectiles. Defence Science Journal, 56(2), 169-177. https://doi.org/10.14429/dsj.56.1880
Issue
Section
Armaments & Explosives
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