Volume 40 Issue 11
Nov.  2020
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LIU Jinghan, TANG Ting, WEI Zhuobin, DONG Qi, LI Lingfeng. Damage effects of a caisson wharf subjected to underwater contact explosion[J]. Explosion And Shock Waves, 2020, 40(11): 111407. doi: 10.11883/bzycj-2019-0378
Citation: LIU Jinghan, TANG Ting, WEI Zhuobin, DONG Qi, LI Lingfeng. Damage effects of a caisson wharf subjected to underwater contact explosion[J]. Explosion And Shock Waves, 2020, 40(11): 111407. doi: 10.11883/bzycj-2019-0378

Damage effects of a caisson wharf subjected to underwater contact explosion

doi: 10.11883/bzycj-2019-0378
  • Received Date: 2019-09-09
  • Rev Recd Date: 2019-11-20
  • Publish Date: 2020-11-05
  • In order to study the damage mechanism of a caisson wharf under underwater contact explosion, the damage characteristic caisson wharf subjected to underwater contact explosion was simulated by using the LS-DYNA software. The credibility of simulation results was verified by comparative analysis of experimental results. The results show that numerical simulation can reflect the experimental result effectively. The failure process of caisson wharf can be divided into two stages. The circumferential cracks and crater appear in the blast side during the shock wave propagation. During the bubble expansion stage, the detonation products flow into the caisson bin from break accelerating the deformation and damage of the caisson cage. The deformation of the cage seriously led to the damage of the wharf panel. The bubble rush out of water and collapse. Accordingly, the severest damage is stopped when it is about 14% of the first pulsation period of underwater explosion bubble. When the location of charge detonation is in the middle of water depth, underwater contact explosion causes more overall damage to the caisson. When the location of charge detonation is near water face, it causes more damage to wharf panel.
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  • [1]
    RAJENDRAN R. Numerical simulation of response of plane plates subjected to uniform primary shock loading of non-contact underwater explosion [J]. Materials & Design, 2009, 30(4): 1000–1007. DOI: 10.1016/j.matdes.2008.06.054.
    [2]
    吴林杰, 侯海量, 朱锡, 等. 水下接触爆炸下防雷舱舷侧空舱的内压载荷特性仿真研究 [J]. 兵工学报, 2017, 38(1): 146–153. DOI: CNKI:SUN:BIGO.0.2017-01-019.

    WU L J, HOU H L, ZHU X, et al. Numerical simulation on inside load characteristics of broadside cabin of defensive structure subjected to underwater contact explosion [J]. Acta Armamentarii, 2017, 38(1): 146–153. DOI: CNKI:SUN:BIGO.0.2017-01-019.
    [3]
    WANG H, ZHU X, CHENG Y S, et al. Experimental and numerical investigation of ship structure subjected to close-in underwater shock wave and following gas bubble pulse [J]. Marine Structures, 2014, 39: 90–117. DOI: 10.1016/j.marstruc.2014.07.003.
    [4]
    WARDLAW A B, LUTON J A. Fluid-structure interaction mechanisms for close-in explosions [J]. Shock & Vibration, 2015, 7(5): 265–275. DOI: 10.1155/2000/141934.
    [5]
    周章涛, 刘建湖, 裴红波, 等. 水下近距和接触爆炸流固耦合作用机理及加载效应研究 [J]. 兵工学报, 2017, 38(S1): 141–150. DOI: CNKI:SUN:BIGO.0.2017-S1-019.

    ZHOU Z T, LIU J H, PEI H B, et al. Fluid-structure interaction mechanism and loading effect in close-in and contact underwater explosions [J]. Acta Armamentrii, 2017, 38(S1): 141–150. DOI: CNKI:SUN:BIGO.0.2017-S1-019.
    [6]
    徐强, 曹阳, 陈健云. 接触爆炸荷载作用下溢流坝的抗爆性能 [J]. 爆炸与冲击, 2017, 37(4): 677–684. DOI: 10.11883/1001-1455(2017)04-0677-08.

    XU Q, CAO Y, CHEN J Y. Antiknock performance of an overflow dam subjected to contact explosion [J]. Explosion and Shock Waves, 2017, 37(4): 677–684. DOI: 10.11883/1001-1455(2017)04-0677-08.
    [7]
    孙金山, 姚颖康, 吴亮, 等. 高架桥混凝土多室箱梁水压爆破破碎机理数值模拟 [J]. 爆炸与冲击, 2017, 37(2): 299–306. DOI: 10.11883/1001-1455(2017)02-0299-08.

    SUN J S, YAO Y K, WU L, et al. Numerical simulation of water-pressure blasting mechanism in breaking viaduct box girder [J]. Explosion and Shock Waves, 2017, 37(2): 299–306. DOI: 10.11883/1001-1455(2017)02-0299-08.
    [8]
    张社荣, 王高辉, 王超, 等. 水下爆炸冲击荷载作用下混凝土重力坝的破坏模式 [J]. 爆炸与冲击, 2012, 32(5): 501–507. DOI: 10.11883/1001-1455(2012)05-0501-07.

    ZHANG S R, WANG G H, WANG C, et al. Failure mode analysis of concrete gravity dam subjected to underwater explosion [J]. Explosion and Shock Waves, 2012, 32(5): 501–507. DOI: 10.11883/1001-1455(2012)05-0501-07.
    [9]
    王高辉, 张社荣, 卢文波, 等. 水下爆炸冲击荷载下混凝土重力坝的破坏效应 [J]. 水利学报, 2015, 46(6): 723–731. DOI: 10.13243/j.cnki.slxb.20140908.

    WANG G H, ZHANG S R, LU W B, et al. Damage effects of concrete gravity dams subjected to underwater explosion [J]. Journal of Hydraulic Engineering, 2015, 46(6): 723–731. DOI: 10.13243/j.cnki.slxb.20140908.
    [10]
    刘美山, 吴新霞, 张恒伟, 等. 混凝土水下爆破炸药单耗试验分析 [J]. 爆破, 2007, 24(1): 10–13. DOI: 10.3963/j.issn.1001-487X.2007.01.003.

    LIU M S, WU X X, ZHANG H W, et al. Experimental analysis on specific charge of underwater explosion of concrete [J]. Blasting, 2007, 24(1): 10–13. DOI: 10.3963/j.issn.1001-487X.2007.01.003.
    [11]
    董琪, 韦灼彬, 唐廷, 李凌锋, 刘靖晗. 水下爆炸对沉箱重力式码头毁伤效应 [J]. 爆炸与冲击, 2019, 39(6): 065101. DOI: 10.11883/bzycj-2018-0090.

    DONG Q, WEI Z B, TANG T, et al. Damage effects of caisson gravity wharf under underwater explosion [J]. Explosion and Shock Waves, 2019, 39(6): 065101. DOI: 10.11883/bzycj-2018-0090.
    [12]
    TU Z, LU Y. Evaluation of typical concrete material models used in hydrocodes for high dynamic response simulations [J]. International Journal of Impact Engineering, 2009, 36(1): 132–146. DOI: 10.1016/j.ijimpeng.2007.12.010.
    [13]
    MALVAR L J, ROSS C A. A review of strain rate effects for concrete in tension [J]. ACI Materials Journal, 1998, 95(6): 735–739. DOI: 10.14359/418.
    [14]
    BISCHOFF P H, PERRY S H. Compressive behaviour of concrete at high strain rates [J]. Materials and Structures, 1991, 24(6): 425–450. DOI: 10.1007/BF02472016.
    [15]
    COLE R H, WELLER R. Underwater explosions [M]. Princeton: Princeton University Press, 1948.
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