Influences of Charge Shapes on the Explosive Dispersal

LI Hongbin; HE Chao; DU Haiwen; HAN Tianyi; LI Baohua; WANG Shiying; ZHOU Tao

doi:10.15892/j.cnki.djzdxb.2024.03.004

Journal of Projectiles, Rockets, Missiles and Guidance >

2024 , Vol. 44 >Issue 3: 29 - 34

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2024.03.004

Influences of Charge Shapes on the Explosive Dispersal

LI Hongbin ,
HE Chao ,
DU Haiwen ,
HAN Tianyi ,
LI Baohua ,
WANG Shiying ,
ZHOU Tao

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Xi’an Modern Chemistry Research Institute,Xi’an 710065,Shaanxi, China

Received date: 2023-07-15

Online published: 2024-12-28

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Abstract

The energy output mode of the dispersal charge determines its explosive driving capacity to the dissemination medium, while the traditional circular cross-section dispersal charge structure has the problem of a unique circumferential output mode of explosive energy. In this work, the energy output mode is changed by changing the cross-section shape of the dispersal charge. The explosive driving effect of three kinds of dispersal charge structures (circular, star and flower shaped) on the dispersal medium is studied. The fill-to-burster mass ratio of three kinds of dispersal charges is kept at 2%. It is shows that the ability of the charge to drive the dispersal medium through explosive is determined by its cross-sectional area, and is little affected by the cross-section shape of the dispersal charge. The reason is that the energy inhomogeneity of shock wave caused by the non-circular charge structure is rapidly homogenized during its propagation. Additionally, when the shell is engrooved on its external surface, the number of primary jet structures is the same as the number of grooves, and has little relationship with the sectional shape of the charge structure.

Key words： explosive dispersal; non-circular shaped explosive charge; jet; cloud size

Cite this article

LI Hongbin , HE Chao , DU Haiwen , HAN Tianyi , LI Baohua , WANG Shiying , ZHOU Tao . Influences of Charge Shapes on the Explosive Dispersal[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2024 , 44(3) : 29 -34 . DOI: 10.15892/j.cnki.djzdxb.2024.03.004

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