A study of explosive effects in close proximity to a submerged cylinder

被引：94

作者：

Brett, John M. ^{[1
]}

Yiannakopolous, George ^{[1
]}

机构：

[1] Def Sci & Technol Org, Melbourne, Vic 3207, Australia

来源：

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2008年 / 35卷 / 04期

关键词：

underwater explosions; shock wave; bubble collapse; structural response;

D O I：

10.1016/j.ijimpeng.2007.01.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Measurements of acceleration and pressure together with high-speed imaging have been used to study the interaction of an underwater explosion with a nearby steel cylinder. Variation of the initial separation between the cylinder and explosive charge generated different cases of interaction in which the response of the cylinder to the shock wave, the bubble pulse wave, water jetting and bubble collapse could be studied. Shock wave loading generated a significant response in all cases. The pressure wave from the pulsating bubble was a less significant load. generating a peak velocity about half that caused by the shock wave. However the collapse of the bubble onto the cylinder was found to be the most severe structural load, generating a peak velocity almost twice that caused by the shock wave and causing significant plastic deformation. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：206 / 225

页数：20

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