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

页数：21

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