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Volume 36 Issue 2
Apr 2022
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Chinese Journal of High Pressure Physics  > 2022  >  36(2): 024103.
XIE Yue, HOU Hailiang, LI Dian. Dynamic Response Characteristics of Aluminum Foam Sandwich Structure under Explosion Load in Cabin[J]. Chinese Journal of High Pressure Physics, 2022, 36(2): 024103. doi: 10.11858/gywlxb.20210849
Citation: XIE Yue, HOU Hailiang, LI Dian. Dynamic Response Characteristics of Aluminum Foam Sandwich Structure under Explosion Load in Cabin[J]. Chinese Journal of High Pressure Physics, 2022, 36(2): 024103. doi: 10.11858/gywlxb.20210849
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Dynamic Response Characteristics of Aluminum Foam Sandwich Structure under Explosion Load in Cabin

doi: 10.11858/gywlxb.20210849

  • College of Naval Architecture and Ocean Engineering, Naval University of Engineering, Wuhan 430033, Hubei, China

  • Received Date: 20 Jul 2021
  • Rev Recd Date: 11 Aug 2021
  • Accepted Date: 17 Aug 2021
    Abstract
  • To study the dynamic response characteristics and protective effectiveness of sandwich composite structure subjected to internal explosion load in a cabin, small scale structure model experiments and finite element numerical simulations were performed, and the propagation and distribution characteristics of the explosion load in the cabin with different blasting distances were analyzed. The dynamic response and deformation mode of the aluminum foam sandwich structure under the initial shock wave, the superposition of reflected shock waves and the quasi-static pressure of the internal explosion were discussed. The experimental and numerical results showed that when the explosive was detonated near one end of the cabin, the localized deformation of the specimen caused by the initial shock wave is significant, while the deformation area of the specimen on the far wall is larger and smoother. Compared with the load conditions of explosions in the center of the cabin, the fluctuation of the shock wave are gentler. In addition, the deformation process of aluminum foam sandwich structure can be divided into three stages: foam core compression, local bulge deformation and overall deflection. The corresponding deformation modes include the facing blast panel with local rising on integral deformation, double panels with local rising on integral and large deformation of integral flexure.

     

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