Experimental research on damaging characteristics of cabin model attacking from shipboard direction under close-in underwater explosion

WU Xingxing; LIU Jianhu; WANG Jun; WANG Haikun; GAO Tao; LIU Guozhen

doi:10.11883/bzycj-2020-0066

Volume 40 Issue 11

Nov. 2020

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WU Xingxing, LIU Jianhu, WANG Jun, WANG Haikun, GAO Tao, LIU Guozhen. Experimental research on damaging characteristics of cabin model attacking from shipboard direction under close-in underwater explosion[J]. Explosion And Shock Waves, 2020, 40(11): 111405. doi: 10.11883/bzycj-2020-0066

Citation:

WU Xingxing, LIU Jianhu, WANG Jun, WANG Haikun, GAO Tao, LIU Guozhen. Experimental research on damaging characteristics of cabin model attacking from shipboard direction under close-in underwater explosion[J]. Explosion And Shock Waves, 2020, 40(11): 111405. doi: 10.11883/bzycj-2020-0066

Citation:

WU Xingxing, LIU Jianhu, WANG Jun, WANG Haikun, GAO Tao, LIU Guozhen. Experimental research on damaging characteristics of cabin model attacking from shipboard direction under close-in underwater explosion[J]. Explosion And Shock Waves, 2020, 40(11): 111405. doi: 10.11883/bzycj-2020-0066

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Experimental research on damaging characteristics of cabin model attacking from shipboard direction under close-in underwater explosion

doi: 10.11883/bzycj-2020-0066

China Ship Scientific Research Center, Wuxi 214082, Jiangsu, China

Received Date: 2020-03-17
Rev Recd Date: 2020-06-22
Publish Date: 2020-11-05

Abstract

Abstract

In order to explore the damage and failure model of warship under close-in underwater explosion from shipboard direction attacting, a cabin model was designed and applied to close-in underwater explosion experiments. The results including demolishing regions of cabin model, shock environment data from typical positions, together with strain datas were acquired. It was indicated that: (1) Only the regions around the charge suffered serious damage, majorly characterized by the local damage model; (2) Water jetting phenomenon was found in this experiment, but the mechanism responsible for the formation of water jetting was quite different from traditional one induced by the bubble collapsing. The reasons may be due to the coupling interactions between bubble movement and incomplete boundary and free surface; (3) The crevasse calculation based on energy method was built. The calculated results were in good agreement with the experimental results; (4) The distance of charge had an important influence on the failure model of shipboard plate.
- shipboard underwater explosion,
- close-in explosion,
- failure model,
- damage effect,
- shock environment

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References(16)

References

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