Experimental Study on Interaction between Bubble and Concrete Composite Slab in Near-field Underwater Explosion

被引：0
|
作者：
Li X. [1 ]
Yue S. [1 ]
Qiu Y. [1 ]
Wang M. [1 ,2 ]
Deng S. [2 ]
Liu N. [3 ]
机构：
[1] State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, Army Engineering University of PLA, Jiangsu, Nanjing
[2] School of Mechanical Engineering, Nanjing University of Science and Technology, Jiangsu, Nanjing
[3] School of Ocean Engineering and Technology, Sun Yat-sen University, Guangdong, Zhuhai
来源：
Binggong Xuebao/Acta Armamentarii | 2023年 / 44卷
关键词：
bubble pulsation; high-speed jet; reinforced concrete slab; steel-concrete-steel composite slab; underwater explosion;
D O I：
10.12382/bgxb.2023.1074
中图分类号：
学科分类号：
摘要：
The response characteristics of concrete composite slab,as the basic component in hydraulic structure under the action ofnear-fieldunderwater explosion and the law of itsinfluence on bubble motion are the key scientific issues to evaluate the damage of underwater explosion to engineering structures. The dynamic process of interaction among bubbles and two types of slab members at different blast distances is studied through a series of underwater explosion tests of reinforced concrete slab and steel-concrete-steel composite slab. The results show that the maximum radius of cylindrical charge with aspect ratio of 1 is consistent with the result calculated by empirical formula. Under the same wall conditions, the pulsation period of bubble increaseswith the decrease of the blast distance, the bubble is gradually adsorbed by the wall, and the damage effect caused by the pulsation and high-speed jet is enhanced. The influence of reinforced concrete slab on the bubble pulsation process is weaker than that of steel-concrete-steel composite slab under the same working conditions. The higher the wall stiffness is, the more obvious the directivity and effect of high-speed jet are. © 2023 China Ordnance Industry Corporation. All rights reserved.
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页码：79 / 89
页数：10
相关论文
共 22 条
  • [1] COLE R H., Underwater explosion, (1948)
  • [2] ZAMYSHLYAEV B V., Dynamic loads in underwater explosion: AD 757183, (1973)
  • [3] RAMAJEYATHILAGAM K, VENDHAN C P., Deformation and rupture of thin rectangular plates subjected to underwater shock, International Journal of Impact Engineering, 30, 6, pp. 699-719, (2004)
  • [4] BRETT J M, YANNAKAPOLOUS G., A study of explosive effects in close proximity to a submerged cylinder [ J ], International Journal of Impact Engineering, 35, 4, pp. 206-225, (2008)
  • [5] CUIJ, ZHANG A M, GUO J, Et al., Damage effect of cabin structure subjected to bubble jet, Explosion and Shock Waves, 32, 4, pp. 355-361, (2012)
  • [6] BRUJAN E A, NAHEN K, SCHMIDT P, Et al., Dynamics of laser-induced cavitation bubbles near elastic boundaries: influence of the elastic modulus [ J], Journal of Fluid Mechanics, 433, pp. 251-281, (2001)
  • [7] LINDAU O, LAUTERBORN W., Cinematographic observation of the collapse and rebound of a laser-produced cavitation bubble near a wall, Journal of Fluid Mechanics, 479, pp. 327-348, (2003)
  • [8] ZHANG A M, CUI P, WANG Y., Experiments on bubble dynamics between a free surface and a rigid wall[J], Experiments in Fluids, 54, (2013)
  • [9] ZHANG A M, CUI P, CUI J., Experimental study on bubble dynamics subject to buoyancy [ J], Journal of Fluid Mechanics, 776, pp. 137-160, (2015)
  • [10] DIDENKO Y T, SUSLICK K S., The energy efficiency of formation of photons, radicals and ions during single-bubble cavitation, Nature, 418, 6896, pp. 394-397, (2002)
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