Dynamic response of stiffened plate under internal blast: Experimental and numerical investigation |
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| Institution: | 1. State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, PR China;2. Explosion Protection and Emergency Disposal Technology Engineering Research Center, Ministry of Education, PR China;4. North University of China, Taiyuan 030051, Shanxi, PR China;5. Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK |
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| Abstract: | Stiffened plates are the basic units of ships, aircraft and other structures. The purpose of this paper is to investigate the dynamic response of stiffened plates under internal blast loading. A combined experimental and numerical investigation was carried out on the cabin structures with unstiffened, single-stiffened and double-stiffened plates. The characteristics of internal blast wave, the effects of stand-off distance and the stiffener position on the deflection and failure modes of stiffened plates were sequentially analyzed. It was interestingly found that the deflection first decreased and then increased with the increase of stand-off distance. Additionally, despite of the reinforcement on the deformation resistance, the stiffeners tended to reduce the damage tolerance of the target plates. This research provides the basic data and theoretical support for the blast resistance design of ships, aircraft and other structures. |
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| Keywords: | Anti-ship missile Internal blast Stiffened plate Failure mode |
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