Oblique penetration performance of Explosively Formed Projectile (EFP) on 6061 aluminum target：experiments and simulations

Yuxuan Gao; Chong Ji; Xin Wang; Yuting Wang; Changxiao Zhao

Oblique penetration performance of Explosively Formed Projectile (EFP) on 6061 aluminum target：experiments and simulations

Authors

Yuxuan Gao College of Field Engineering, Army Engineering University of PLA, Nanjing 210007, China https://orcid.org/0009-0008-8616-3236
Chong Ji College of Field Engineering, Army Engineering University of PLA, Nanjing 210007, China https://orcid.org/0000-0003-3428-6302
Xin Wang College of Field Engineering, Army Engineering University of PLA, Nanjing 210007, China https://orcid.org/0000-0002-9572-9288
Yuting Wang College of Field Engineering, Army Engineering University of PLA, Nanjing 210007, China https://orcid.org/0000-0001-9893-5610
Changxiao Zhao College of Field Engineering, Army Engineering University of PLA, Nanjing 210007, China https://orcid.org/0000-0002-4545-4618

Abstract

In this paper, the penetration resistance of 6061 aluminum plates to explosively formed projectiles (EFPs) at the incidence angles of 0°, 15°, 30°, and 45° was studied. The penetration process was roughly divided into three typical stages—the plastic flanging stage of the target, the righting stage of the projectile, and the plug formation stage of the target. Through the energy analysis, the energy consumption of the aluminum plate increased with the increase in the incidence angle during the entire penetration process. Through the microscopic analysis of the perforated wall surface of the aluminum plate, it was found that there were distinct boundaries and differences between the plastic reaming zone and the punching plug fracture zone.. Overall, four kinds of classification modes were proposed for the damage of the aftereffect plate, which provides a method to evaluate the aftereffect of EFP oblique penetration into 6061 aluminum plates.

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Published

2023-11-21

Issue

Vol. 21 No. 1 (2024)

Section

Articles

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