Influence of Hole Size of Semi-Armor-Piercing Warhead on Ship's Cabin Implosion Effect

MIAO Run; WANG Weili; WU Shiyong; ZENG Liang; LIU Hongjie

doi:10.11858/gywlxb.20180547

Volume 32 Issue 6

Dec 2018

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Chinese Journal of High Pressure Physics > 2018 > 32(6): 065111.

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MIAO Run, WANG Weili, WU Shiyong, ZENG Liang, LIU Hongjie. Influence of Hole Size of Semi-Armor-Piercing Warhead on Ship's Cabin Implosion Effect[J]. Chinese Journal of High Pressure Physics, 2018, 32(6): 065111. doi: 10.11858/gywlxb.20180547

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Influence of Hole Size of Semi-Armor-Piercing Warhead on Ship's Cabin Implosion Effect

doi: 10.11858/gywlxb.20180547

1.
College of Coast Defence Arm, Naval Aeronautical University, Yantai 264001, China
2.
College of Ordnance Engineering, Naval University of Engineering, Wuhan 430032, China
3.
College of Basic Knowledge, Naval Aeronautical University, Yantai 264001, China

Received Date: 25 Apr 2018
Rev Recd Date: 27 May 2018

Abstract

Abstract

In this study, the influence of bulkhead perforation structure caused by half armor piercing warhead on the cabin burst effect is studied.LS-DYNA finite element software is used to simulate the internal explosion test of the small ship cabin with the help of reasonable material constitutive relation, equation of state, and the failure criterion at the connection between the material and the structure.The effectiveness of the model is verified by comparing the calculated peak value of shock wave in cabin with corresponding experimental data.By establishing different sizes of bullet holes, the influence of bullet hole size on cabin explosion effect is analyzed.It is concluded that peak value of shock wave overpressure decreases and the peak time of shock wave overpressure is delayed.When the diameter of the bullet hole is less than 1/10 of the bulkhead, the impact of the missile on the chamber explosion effect is negligible.
- cabin implosion,
- semi-armor-piercing warhead,
- hole structure

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References

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Influence of Hole Size of Semi-Armor-Piercing Warhead on Ship's Cabin Implosion Effect

doi: 10.11858/gywlxb.20180547

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Influence of Hole Size of Semi-Armor-Piercing Warhead on Ship's Cabin Implosion Effect

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