Experimental Study on Dynamic Responses of Fuel Tanks Under Fragment Impacts

JIA Haobo; REN Kerong; QING Hua; ZHANG Jingfei; XU Wentao; TANG Guangwu

doi:10.21656/1000-0887.440002

Volume 44 Issue 8

Aug. 2023

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Article Navigation > Applied Mathematics and Mechanics > 2023 > 44(8): 944-952

JIA Haobo, REN Kerong, QING Hua, ZHANG Jingfei, XU Wentao, TANG Guangwu. Experimental Study on Dynamic Responses of Fuel Tanks Under Fragment Impacts[J]. Applied Mathematics and Mechanics, 2023, 44(8): 944-952. doi: 10.21656/1000-0887.440002

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Experimental Study on Dynamic Responses of Fuel Tanks Under Fragment Impacts

doi: 10.21656/1000-0887.440002

1.
School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450000, P.R.China
2.
Aviation Maintenance NCO Academy, Air Force Engineering University, Xinyang, Henan 464000, P.R.China
3.
College of Sciences, National University of Defense Technology, Changsha 410008, P.R.China
4.
State Key Laboratory of Bridge Engineering Structural Dynamics, China Merchants Chongqing Communications Technology Research & Design Institute Co., Ltd., Chongqing 400067, P.R.China

Received Date: 2023-01-04
Rev Recd Date: 2023-02-20
Publish Date: 2023-08-01

Abstract

Abstract

The dynamic responses of fuel tanks under fragment impacts were investigated. The ballistic impact tests on fuel tanks were carried out, the test processes were recorded with a high-speed camera, the dynamic morphologies of the fuel tank back wall were obtained with the 3D digital image correlation technique, and the damage forms and dynamic responses of the tanks under different fragment impact velocities were analyzed. The results show that, the damage to the tank front wall is in the form of circular holes and that to the back wall is in the form of "petal-shaped" breaches with radial cracks at fragment impact velocities of 955~1 667 m/s. The dynamic response speed and strain level of the tank back wall dramatically increases with the fragment impact velocity. The dynamic response of the tank back wall mainly includes 2 parts: the plastic deformation of the wall center and the overall deformation of the wall. With the increase of the deformation extent of the tank back wall, plastic hinge lines will occur along the wall diagonals and edges.
- fragment impact,
- fuel tank,
- hydrodynamic ram,
- dynamic response,
- digital image correlation

(Contributed by TANG Guangwu, M. AMM Editorial Board)

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References(19)

References

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