Initiation of Detonation in Explosives by Impact of Projectiles

Defence Science Journal

H.S. Yadav¹ 

[1] 404, Nyati Hermitage, Ramnagar, NDA RD, Bavdhan, Pune

关键词: Detonation;    projectiles;    explosives;    shock waves impact;    projectile impact;    flyer plate projectiles;    flat-ended projectiles;    round-ended projectiles;   

DOI  :  

学科分类：社会科学、人文和艺术（综合）

来源: Defence Scientific Information & Documentation Centre

【 摘 要 】

This paper presents a study of initiation of detonation in explosives by the impact of projectiles. 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.

【 授权许可】

Unknown