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Volume 34 Issue 4
Jul 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(4): 045101.
LIU Jinghan, TANG Ting, WEI Zhuobin, LI Lingfeng. Numerical Study of Damage Effect for High-Piled Wharf Subjected to Underwater Explosion[J]. Chinese Journal of High Pressure Physics, 2020, 34(4): 045101. doi: 10.11858/gywlxb.20190850
Citation: LIU Jinghan, TANG Ting, WEI Zhuobin, LI Lingfeng. Numerical Study of Damage Effect for High-Piled Wharf Subjected to Underwater Explosion[J]. Chinese Journal of High Pressure Physics, 2020, 34(4): 045101. doi: 10.11858/gywlxb.20190850
shu

Numerical Study of Damage Effect for High-Piled Wharf Subjected to Underwater Explosion

doi: 10.11858/gywlxb.20190850
  • 1.

    Naval University of Engineering, Wuhan 430033, Hubei, China

  • 2.

    Naval Logistics College of PLA, Tianjin 300450, China

  • Received Date: 29 Oct 2019
  • Rev Recd Date: 20 Nov 2019
    Abstract
  • In order to study the damage effect of underwater explosion on high-piled wharf, a coupling model of high-piled wharf is established. The damage process of high-piled wharf under underwater explosion is analyzed during shock wave propagation and bubble pulse based on LS-DYNA. The dynamic response and failure mechanism of high-piled wharf and the influence of explosive charge are discussed. The residual loading capacity of high-piled wharf is evaluated. The results show that the damage accumulation of high-piled wharf is mainly developed in the first bubble expansion and the damage is basically formed after the first bubble pulse. The piles have periodic reciprocating deformation due to the bubble pulse, and the top and middle of piles are the weakest parts for anti-explosion performance. The damage effect in the upstream of piles is greater than that in downstream, and the damage of wharf panel and beam is weak. With the increase of explosive charge, the piles near explosive are damaged by bending and shearing, the connection of transverse and longitudinal beams and wharf panel are damaged.

     

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