Internal load characteristics of broadside cabin of defensive structure subjected to underwater contact explosion

Wu Linjie; Hou Hailiang; Zhu Xi; Chen Pengyu; Tian Wanping

doi:10.11883/1001-1455(2017)04-0719-08

Volume 37 Issue 4

May 2017

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Wu Linjie, Hou Hailiang, Zhu Xi, Chen Pengyu, Tian Wanping. Internal load characteristics of broadside cabin of defensive structure subjected to underwater contact explosion[J]. Explosion And Shock Waves, 2017, 37(4): 719-726. doi: 10.11883/1001-1455(2017)04-0719-08

Citation:

Wu Linjie, Hou Hailiang, Zhu Xi, Chen Pengyu, Tian Wanping. Internal load characteristics of broadside cabin of defensive structure subjected to underwater contact explosion[J]. Explosion And Shock Waves, 2017, 37(4): 719-726. doi: 10.11883/1001-1455(2017)04-0719-08

Citation:

Wu Linjie, Hou Hailiang, Zhu Xi, Chen Pengyu, Tian Wanping. Internal load characteristics of broadside cabin of defensive structure subjected to underwater contact explosion[J]. Explosion And Shock Waves, 2017, 37(4): 719-726. doi: 10.11883/1001-1455(2017)04-0719-08

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Internal load characteristics of broadside cabin of defensive structure subjected to underwater contact explosion

doi: 10.11883/1001-1455(2017)04-0719-08

1.
Department of Naval Architecture Engineering, Naval University of Engineering, Wuhan 430033, Hubei, China
2.
Administrative Office of Training, Naval University of Engineering, Wuhan 430033, Hubei, China

Received Date: 2015-12-10
Rev Recd Date: 2016-05-03
Publish Date: 2017-07-25

Abstract

Abstract

By carrying out model experiments, we investigated the internal load characteristics of the broadside cabin of the defensive structure subjected to underwater contact explosion near the free surface. According to the damage of the experimental models and the pressure profile measured by sensors, we described the interaction between underwater explosion products and the broadside cabin of the defensive structure, and analyzed the pressure change of gas in the broadside cabin of the structure. The results show that the gas pressure in the broadside cabin of the structure can be divided into the shock wave phase, the quasi-static pressure phase and the negative pressure phase, and the broadside cabin is damaged mostly by the shock wave and quasi-static pressure. In addition the specific-impulse of the quasi-static pressure is several times bigger than that of the shock wave, and the effect of the negative pressure on the damage of the broadside cabin is negligible.
- underwater explosion,
- broadside cabin,
- defensive structure,
- load characteristics

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References(13)

References

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