Influence of strongly-constrained liquid-filled composite armor on stability of incoming shaped charge jet during eccentric penetration

You-er Cai; Xudong Zu; Yaping Tan; Zhengxiang Huang; Xiaojun Shen; Xin Jia

doi:10.1590/1679-78257098

Influence of strongly-constrained liquid-filled composite armor on stability of incoming shaped charge jet during eccentric penetration

Authors

You-er Cai School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China https://orcid.org/0000-0002-2551-4353
Xudong Zu School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China https://orcid.org/0000-0002-4648-1669
Yaping Tan School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China https://orcid.org/0000-0003-1101-2878
Zhengxiang Huang School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China https://orcid.org/0000-0002-4608-9405
Xiaojun Shen School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China https://orcid.org/0000-0002-6820-3969
Xin Jia School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China https://orcid.org/0000-0002-5051-5390

DOI:

https://doi.org/10.1590/1679-78257098

Abstract

Compared with central penetration, the eccentric penetration of jet into a liquid-filled composite armor (LCA) shows a more obvious lateral displacement due to the asymmetric impact by the shock wave and liquid radial reflux. Based on this characteristic, the reaming process in the liquid layer during the shaped charge jet (SCJ) penetrates into the strongly-constrained liquid-filled composite armor (SLCA) eccentrically, the interference process of jet is subjected to the asymmetric impact by the shock wave and liquid radial reflux, and the lateral movement process of the SCJ under lateral force loading is analyzed to study the influence of SLCA on the stability of incoming SCJ during eccentric penetration. Theoretical and X-ray experimental results show that when the eccentricity distance is [0 mm, 12 mm], the severely disturbed velocity range and total disturbed velocity range of the SCJ increase with the increase of the eccentricity distance, while the maximum lateral displacement of the SCJ decreases slightly with the increase of the eccentricity distance at [1 mm, 12 mm].

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Published

2022-05-16

Issue

Vol. 19 No. 4 (2022)

Section

Articles

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