期刊
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
卷 97, 期 -, 页码 10-28出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijimpeng.2016.06.001
关键词
Tube-core sandwich panel; Anti-blast structure; Blast mitigation; Experimental research
资金
- National Natural Science Foundation of China [11372095]
- Natural Science Foundation of Jiangsu Province [BK2011741]
- State Key Laboratory of Mechanics and Control of Mechanical Structures [MCMS-0215G01]
A tube-core sandwich panel was designed to serve as anti-blast panel of blast resistant walls. Steel tubes are non-expensive and strong for anti-blast walls, and can be easily connected with face sheets through welding. Static three-point bending experiments, close-in explosion experiments and contact explosion experiments were performed to explore its anti-blast ability. The tough interface and shear-resistant tube core endow the panel with high bending rigidity. In close-in explosion, the front face mitigates the shock wave corrugations through corrugated plastic deformation and the panel is rigid enough to resist the shock wave. In contact explosion, the panel attenuates the shock wave through tube-crushing and skin tearing. Appropriate thicknesses of the front face and the tube wall promote energy absorption. The experiments indicate that spaced tube-core panel is the better choice for close-in explosions while connected tube-core panel has advantages under contact explosions. (C) 2016 Elsevier Ltd. All rights reserved.
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