Protection ability of liquid-filled structure subjected to penetration by high-velocity long-rod projectile

WU Xiaoguang; LI Dian; WU Guomin; HOU Hailiang; ZHU Xi; DAI Wenxi

doi:10.11883/bzycj-2016-0146

Volume 38 Issue 1

Nov. 2017

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WU Xiaoguang, LI Dian, WU Guomin, HOU Hailiang, ZHU Xi, DAI Wenxi. Protection ability of liquid-filled structure subjected to penetration by high-velocity long-rod projectile[J]. Explosion And Shock Waves, 2018, 38(1): 76-84. doi: 10.11883/bzycj-2016-0146

Citation:

WU Xiaoguang, LI Dian, WU Guomin, HOU Hailiang, ZHU Xi, DAI Wenxi. Protection ability of liquid-filled structure subjected to penetration by high-velocity long-rod projectile[J]. Explosion And Shock Waves, 2018, 38(1): 76-84. doi: 10.11883/bzycj-2016-0146

Citation:

WU Xiaoguang, LI Dian, WU Guomin, HOU Hailiang, ZHU Xi, DAI Wenxi. Protection ability of liquid-filled structure subjected to penetration by high-velocity long-rod projectile[J]. Explosion And Shock Waves, 2018, 38(1): 76-84. doi: 10.11883/bzycj-2016-0146

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Protection ability of liquid-filled structure subjected to penetration by high-velocity long-rod projectile

doi: 10.11883/bzycj-2016-0146

1.
China Ship Development and Design Center, Wuhan 430064, Hubei, China
2.
Department of Naval Architecture Engineering, Naval University of Engineering, Wuhan 430064, Hubei, China

Received Date: 2016-05-24
Rev Recd Date: 2016-11-03
Publish Date: 2018-01-25

Abstract

Abstract

In this work we carried out ballistic impact tests on the liquid-filled structure to improve its protection capability. By adjusting the thickness match ratio to the structure's front panel to its rear ones, we studied how this ratio's influence on the structure's failure modes, pressure loading characteristics and protection capabilities. The results show that the projectile velocity is the main factor that affects the magnitude of the incident pressure peaks. With the increase of the ratio of the back panel thickness to the rear panel thickness, the front panel's failure mode changes from the shear plugging-film bulging-depressed deformation to the shear plugging-film bulging until the shear plugging is damaged, whereas the back panel's failure mode changes from the bulging-dishing damage to the film bulging-petal cracking damage. The front and back panels' failure modes affect each other, the matching relationship of the front and back panels' thicknesses determines the occurrence of the corresponding failure modes. The total thickness of the front and back panels being the same, the larger the thickness ratio, the more the impact energy is absorbed and the stronger the structure's penetration capability.
- failure mode,
- pressure load characteristics,
- protection capability,
- liquid-filled structure

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References(17)

References

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