Study on the damage patterns of ring-stiffened cylindrical shells under underwater explosion(UNDEX) loading

IF 5.1 2区 工程技术 Q1 ENGINEERING, MECHANICAL
Yuan Gao , Xiyu Jia , Xi Lu , Feng Ma
{"title":"Study on the damage patterns of ring-stiffened cylindrical shells under underwater explosion(UNDEX) loading","authors":"Yuan Gao ,&nbsp;Xiyu Jia ,&nbsp;Xi Lu ,&nbsp;Feng Ma","doi":"10.1016/j.ijimpeng.2025.105312","DOIUrl":null,"url":null,"abstract":"<div><div>Structural damage caused by underwater explosions (UNDEX) is a critical research area in engineering and industrial applications. This study investigates the damage patterns of a typical ring-stiffened aluminum cylinder subjected to UNDEX through experiments and numerical simulations. A series of Φ9 m × 9 m explosion pond tests were conducted to validate numerical simulations and analyze structural responses under varying standoff distances (12/10.4/9.6/8.8 charge radii). An Arbitrary Lagrangian-Eulerian (ALE)-based method was employed to further explore the effects of charge weight (10/50/100/200/400/800 g) and standoff distance on structural failure. The results identified three failure modes—sagging deformation, wavelike deformation, and rupture—with sagging and rupture as the dominant modes. The coupling processes between the impact load and structural response for each mode were analyzed in detail. Based on these findings, a damage phase diagram was developed to illustrate the relationship between explosive mass, standoff distance, and damage modes, providing an intuitive representation of failure mechanisms. Additionally, dimensional analysis identified two key parameters—scaled distance and charge radius—that influence damage outcomes, with their relative influence weights quantified. This study provides critical insights into the failure mechanisms of ring-stiffened cylindrical shells under underwater explosions and offers valuable guidance for predicting damage and designing protective structures in engineering applications.</div></div>","PeriodicalId":50318,"journal":{"name":"International Journal of Impact Engineering","volume":"202 ","pages":"Article 105312"},"PeriodicalIF":5.1000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Impact Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0734743X25000934","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
引用次数: 0

Abstract

Structural damage caused by underwater explosions (UNDEX) is a critical research area in engineering and industrial applications. This study investigates the damage patterns of a typical ring-stiffened aluminum cylinder subjected to UNDEX through experiments and numerical simulations. A series of Φ9 m × 9 m explosion pond tests were conducted to validate numerical simulations and analyze structural responses under varying standoff distances (12/10.4/9.6/8.8 charge radii). An Arbitrary Lagrangian-Eulerian (ALE)-based method was employed to further explore the effects of charge weight (10/50/100/200/400/800 g) and standoff distance on structural failure. The results identified three failure modes—sagging deformation, wavelike deformation, and rupture—with sagging and rupture as the dominant modes. The coupling processes between the impact load and structural response for each mode were analyzed in detail. Based on these findings, a damage phase diagram was developed to illustrate the relationship between explosive mass, standoff distance, and damage modes, providing an intuitive representation of failure mechanisms. Additionally, dimensional analysis identified two key parameters—scaled distance and charge radius—that influence damage outcomes, with their relative influence weights quantified. This study provides critical insights into the failure mechanisms of ring-stiffened cylindrical shells under underwater explosions and offers valuable guidance for predicting damage and designing protective structures in engineering applications.
求助全文
约1分钟内获得全文 求助全文
来源期刊
International Journal of Impact Engineering
International Journal of Impact Engineering 工程技术-工程:机械
CiteScore
8.70
自引率
13.70%
发文量
241
审稿时长
52 days
期刊介绍: The International Journal of Impact Engineering, established in 1983 publishes original research findings related to the response of structures, components and materials subjected to impact, blast and high-rate loading. Areas relevant to the journal encompass the following general topics and those associated with them: -Behaviour and failure of structures and materials under impact and blast loading -Systems for protection and absorption of impact and blast loading -Terminal ballistics -Dynamic behaviour and failure of materials including plasticity and fracture -Stress waves -Structural crashworthiness -High-rate mechanical and forming processes -Impact, blast and high-rate loading/measurement techniques and their applications
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信