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Title:
On the regimes of underwater explosion for a submerged slender structure by pulsating bubble
Author: Nie BC(聂冰川); Li JC(李家春); Zhang HQ(张会琴)
Source: MARINE STRUCTURES
Issued Date: 2015-12
Volume: 44, Pages:85-100
Abstract: Three regimes: near-, middle- and far-fields of underwater explosion are proposed in this study aiming at providing an overview on the responses of submerged slender structure by pulsating bubble. In the near-field, the material starts to yield, thus leading to structure breakdown immediately; remarkable structural global elastic deformation occurs in the middle-field as well as substantial movement; and a structure moves as a rigid body with negligible deformation for the far-field. Equivalent dimensionless parameters are obtained by two different dimensional analysis methods, among which a dominant similarity parameter is found out. Thus, a scaling law providing us with a relation between structural global response and the dominant similarity parameter is yielded, which can be used for demarcating the three regimes quantitatively. To demonstrate, three models corresponding to typical submarine parameters are performed in the case studies. Quantitative criterion of the three regimes is presented along with the regime diagrams. The structural global response features such as the deformation and maximal acceleration/speed of different regimes are provided as well. (C) 2015 Elsevier Ltd. All rights reserved.
Keyword: Submarine ; Similarity analysis ; Cauchy number ; Scaling law ; Far-field
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Li, JC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China.
Correspondent Email: jcli05@imech.ac.cn
DOI: 10.1016/j.marstruc.2015.07.003
Related URLs: 查看原文
DOC Type: 期刊论文
WOS Subject: Engineering, Marine ; Engineering, Civil
WOS Subject Extended: Engineering
WOS Keyword Plus: DYNAMIC PLASTIC RESPONSE ; NUMERICAL-SIMULATION ; BEAMS ; MODEL
WOS ID: WOS:000366074200005
ISSN: 0951-8339
Rank: [Nie, Bing-Chuan; Li, Jia-Chun; Zhang, Hui-Qin] Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
Department: LMFS水环境流体力学(LEM)
Classification: 一类
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/58363
Appears in Collections:流固耦合系统力学重点实验室(2012-)_期刊论文

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Recommended Citation:
Nie BC,Li JC,Zhang HQ. On the regimes of underwater explosion for a submerged slender structure by pulsating bubble[J]. MARINE STRUCTURES,2015-12-01,44:85-100.
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