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作者:

Chen, Longming (Chen, Longming.) | Li, Shutao (Li, Shutao.) | Chen, Yeqing (Chen, Yeqing.) | Guo, Dong (Guo, Dong.) | Wei, Wanli (Wei, Wanli.) | Yan, Qiushi (Yan, Qiushi.)

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EI Scopus SCIE

摘要:

A test was conducted to investigate the dynamic response characteristics and damage modes of pile wharves subjected to underwater explosions. To simulate the explosion process, a fluid-solid coupling finite element model of the pile wharf was constructed. The structural damage process, response characteristics, and failure modes of the pile wharf were analyzed based on the experimental and numerical simulation results. The results showed that the main damaged components of the pile wharf were the piles, with damage modes of cracks, spalling, and brittle shear. The probability of moderate or more significant damage to the inclined piles was 25% higher than that of the vertical piles. The inclined piles with low deformation ability were more prone to local concrete brittle failure, significantly increasing the possibility of instability and failure of the pile wharf structure. The acceleration response spectrum indicated that although the structure of the pile wharf was severely damaged, the personnel on its surface slab still had a high probability of survival. The study indicates that replacing inclined piles with alternative optimized structures benefits the blast resistance of pile wharves.

关键词:

Pile wharf Numerical simulation Scaling test Underwater explosion

作者机构:

  • [ 1 ] [Chen, Longming]PLA, AMS, Inst Def Engn, Beijing, Peoples R China
  • [ 2 ] [Li, Shutao]PLA, AMS, Inst Def Engn, Beijing, Peoples R China
  • [ 3 ] [Chen, Yeqing]PLA, AMS, Inst Def Engn, Beijing, Peoples R China
  • [ 4 ] [Wei, Wanli]PLA, AMS, Inst Def Engn, Beijing, Peoples R China
  • [ 5 ] [Guo, Dong]Navy Acad, Inst Naval Def Engn Design, Beijing, Peoples R China
  • [ 6 ] [Yan, Qiushi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China

通讯作者信息:

  • [Yan, Qiushi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing, Peoples R China;;

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来源 :

OCEAN ENGINEERING

ISSN: 0029-8018

年份: 2023

卷: 291

5 . 0 0 0

JCR@2022

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