Blast resistance of water-backed metallic sandwich panels subjected to underwater explosion

被引：24

作者：

Ren, Lijie ^{[1
]}

Ma, Honghao ^{[1
,2
]}

Shen, Zhaowu ^{[1
]}

Wang, Yixin ^{[1
]}

Zhao, Kai ^{[1
]}

机构：

[1] Univ Sci & Technol China, Sch Engn Sci, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China

[2] Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China

来源：

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2019年 / 129卷

关键词：

Water-backed structure; Honeycomb; Sandwich panel; Underwater explosion; Secondary pressure wave; AIR BLAST; IMPACT BEHAVIOR; HONEYCOMB; DEFORMATION; FAILURE; PLATES; CORE; TESTS; BEAMS; FOAM;

D O I：

10.1016/j.ijimpeng.2019.02.009

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Explosion tests were performed underwater to study the blast resistance of water-backed sandwich panels. Effects on the structural response of face-sheet and core configurations, including face-sheet thickness, cell wall thickness of the honeycomb, core thickness and charge mass, were investigated by a large number of experiments. Quantitative results were obtained in the tests with corresponding sensors and further processing. Further results characterized the permanent deformation of sandwich panels. A failure mode map was adopted to identify the effect of design parameters on the structural failure mechanism at this blast magnitude. Finally, a comparison between sandwich panels and monolithic plates was performed. The comparative study provided further experimental evidence for the benefits of sandwich in water-backed configuration. Present study led to the apprehension of blast resistance of water-backed sandwich structure to underwater blast load, thereby developed useful guidelines for the design of blast-resistant structural systems.

引用

页码：1 / 11

页数：11

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