Multi-peak phenomenon of large-scale hull structural damage under near-field underwater explosion

被引：21
作者：
Zhang, Xiaoqiang [1 ,2 ]
He, Zhenhong [1 ,2 ]
Du, Zhipeng [3 ]
Wang, Jizhen [4 ,5 ]
Jiang, Yongbo [1 ,2 ]
Li, Ying [1 ,2 ]
机构：
[1] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Inst Adv Struct Technol, Beijing Key Lab Lightweight Multifunct Composite M, Beijing 100081, Peoples R China
[3] Naval Res Acad, Beijing 100061, Peoples R China
[4] Aircraft Strength Res Inst China, Aviat Key Lab Sci & Technol Struct Impact Dynam, Xian 710065, Shaanxi, Peoples R China
[5] Xi An Jiao Tong Univ, Sch Mech Engn, Xian 710065, Shaanxi, Peoples R China
来源：
OCEAN ENGINEERING | 2023年 / 283卷
基金：
中国国家自然科学基金;
关键词：
Underwater explosion; Multi-peak phenomenon; Local deformation; Residual strength; INDUCED CAVITATION BUBBLES; DYNAMICS; COLLAPSE; WAVE;
D O I：
10.1016/j.oceaneng.2023.114898
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
The underwater explosion (UNDEX) may cause more serious damage to the hull structure under certain detonation conditions. In this study, through a near-filed UNDEX test with a full-scale barge in a natural environment, a detailed simulation of the entire UNDEX process applying the S-ALE method is conducted and validated. Several near-field UNDEX simulations of the barge with different detonation distances are then conducted to study the response characteristics and damage results. The double-peak phenomenon of ship bottom deformation and the single-peak phenomenon of residual strength under different detonation distances, which is referred to as the multi-peak phenomenon, are identified based on the results of local deformation and residual strength, and their mechanisms are further analyzed and clarified.
引用
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页数：21
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