Penetration of ballistic gelatin by explosion-driven inert metal particles

Weihang Li; Wenjin Yao; Wei Zhu; Wenbin Li; Dacheng Gao; Shilei Tian; Chao Han; Yangyang Liu

Penetration of ballistic gelatin by explosion-driven inert metal particles

Authors

Weihang Li Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology, Nanjing, Jiangsu, China https://orcid.org/0009-0005-1724-2510
Wenjin Yao Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology, Nanjing, Jiangsu, China https://orcid.org/0000-0001-8728-4445
Wei Zhu Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology, Nanjing, Jiangsu, China https://orcid.org/0009-0000-5797-5448
Wenbin Li Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology, Nanjing, Jiangsu, China https://orcid.org/0000-0003-4031-9764
Dacheng Gao Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology, Nanjing, Jiangsu, China https://orcid.org/0009-0005-9879-3508
Shilei Tian Hebei Second Machinery Industry Co., Ltd, Shijiazhuang, Hebei, China https://orcid.org/0009-0002-0525-8476
Chao Han Hebei Second Machinery Industry Co., Ltd, Shijiazhuang, Hebei, China https://orcid.org/0009-0009-2892-6693
Yangyang Liu Hebei Second Machinery Industry Co., Ltd, Shijiazhuang, Hebei, China https://orcid.org/0009-0005-5549-5199

Abstract

In urban combat, sub-millimeter inert metal powder is used to replace fragments in explosive bombs, which can effectively reduce collateral damage. In order to investigate the damage effect of high-speed metal particles on the human body, a particle ring filled with a charge was designed to create an explosion-driven particle cloud for the penetration ballistic gelatin. The particle ring was made of polytetrafluoroethylene (PTFE) and sub-millimeter tungsten powder. The dispersion properties of the particle cloud driven by the explosion were studied with high-speed photography and ballistic gelatin. Furthermore, the numerical simulation models of particle-penetrating gelatin based on the experimental results were established with the finite element method. The influences of the particle size and velocity on the penetration depth and cavity diameter was obtained. The relationship between the critical interference distance of the cavity and the distance between particles was determined. This paper provides references and theoretical support for the design of low collateral damage ammunition based on inert metal powder.

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Published

2024-02-20

Issue

Vol. 21 No. 3 (2024)

Section

Articles

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