Jet Penetration Effect of an Inward-Cutting Circular Shaped Charge with Different Number of Detonation Points
- Authors: Wu S.1, Fang X.1, Li Y.1, Gao Z.1, Liu Q.1, Liu J.1, Xu J.1, Gu W.1
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Affiliations:
- Army Engineering University of PLA
- Issue: Vol 55, No 6 (2019)
- Pages: 750-758
- Section: Article
- URL: https://ogarev-online.ru/0010-5082/article/view/153307
- DOI: https://doi.org/10.1134/S0010508219060182
- ID: 153307
Cite item
Abstract
The breach of a steel column target (Steel 45, 120 mm in diameter) by an inward-cutting circular shaped charge is considered. The jet penetration process is simulated by a 3D model run in the ANSYS/LS-DYNA program. The results are compared with actual tests, where photographs of the jet penetration process allowed observation of detonation forms, timing of the jets arising at the cross section of the detonation points, and detonation wave collision points. Different penetration effects are observed with 2-, 4-, or 8-point symmetrical synchronous initiation of detonation. With 2-point initiation, the circular-shaped charge can basically cut off the steel column target, but 4- and 8-point initiation is more effective. A greater number of detonation points provides more detonation wave collision points, higher jet velocity, earlier jet-target contact, greater penetration depth, and more rapid cutting of the target.
About the authors
Sh.-Zh. Wu
Army Engineering University of PLA
Email: guwenbin1@aliyun.com
China, Nanjing, 210007
X.-A. Fang
Army Engineering University of PLA
Email: guwenbin1@aliyun.com
China, Nanjing, 210007
Y.-Ch. Li
Army Engineering University of PLA
Email: guwenbin1@aliyun.com
China, Nanjing, 210007
Zh.-R. Gao
Army Engineering University of PLA
Email: guwenbin1@aliyun.com
China, Nanjing, 210007
Q.-A. Liu
Army Engineering University of PLA
Author for correspondence.
Email: guwenbin1@aliyun.com
China, Nanjing, 210007
J.-Q. Liu
Army Engineering University of PLA
Email: guwenbin1@aliyun.com
China, Nanjing, 210007
J.-L. Xu
Army Engineering University of PLA
Email: guwenbin1@aliyun.com
China, Nanjing, 210007
W.-B. Gu
Army Engineering University of PLA
Email: guwenbin1@aliyun.com
China, Nanjing, 210007
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