Dispersion Properties of Fragments of Square Metal Shells Driven by Explosive Loading

Xinyue Huang; Yufei Zhang; Han Liu; Zhiwei Guo; Anhong Chen; Guangyan Huang

doi:10.1590/1679-78257833

Dispersion Properties of Fragments of Square Metal Shells Driven by Explosive Loading

Authors

Xinyue Huang State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology; Beijing 100081, P. R. China https://orcid.org/0009-0007-2542-8977
Yufei Zhang Science and Technology on Space Physics Laboratory, China Academy of Launch Vehicle Technology, Beijing 100076, China https://orcid.org/0009-0000-7221-8920
Han Liu State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology; Beijing 100081, P. R. China https://orcid.org/0009-0001-0460-646X
Zhiwei Guo State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology; Beijing 100081, P. R. China. https://orcid.org/0000-0003-3863-081X
Anhong Chen Science and Technology on Space Physics Laboratory, China Academy of Launch Vehicle Technology, Beijing 100076, China https://orcid.org/0009-0003-4454-2928
Guangyan Huang State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology; Beijing 100081, P. R. China https://orcid.org/0000-0002-7100-918X

DOI:

https://doi.org/10.1590/1679-78257833

Abstract

The fragment dispersion properties of metal shells under internal explosive loading are important topics in the fields of public safety and defence technology. The internal explosion driving phenomenon of square charge structures is common in the design of innovative warheads, the protection of improvised explosive devices (IEDs), the storage of hazardous materials, etc., and it is essential to investigate their fragment dispersion characteristics. In this study, the effect of the eccentric initiation on the circumferential fragment speed of the square charge structure was investigated via high-speed impulse X-ray experimental technique and numerical simulating methods. Furthermore, a high-order polynomial calculation formula for the circumferential fragment dispersion speed of the square charge structure under different eccentric coefficients for initiation was established based on the numerical and experimental data. The results of this study would provide references for the disposal of IEDs and the design of warheads.

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Published

2023-09-29

Issue

Vol. 20 No. 9 (2023)

Section

Articles

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