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Volume 34 Issue 3
Jun 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(3): 035102.
LI Wenwei, HUANG Wei. Impulsive Resistance of Metallic Honeycomb Sandwich Structures Subjected to Underwater Impulsive Loading[J]. Chinese Journal of High Pressure Physics, 2020, 34(3): 035102. doi: 10.11858/gywlxb.20190790
Citation: LI Wenwei, HUANG Wei. Impulsive Resistance of Metallic Honeycomb Sandwich Structures Subjected to Underwater Impulsive Loading[J]. Chinese Journal of High Pressure Physics, 2020, 34(3): 035102. doi: 10.11858/gywlxb.20190790
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Impulsive Resistance of Metallic Honeycomb Sandwich Structures Subjected to Underwater Impulsive Loading

doi: 10.11858/gywlxb.20190790
  • 1.

    China Institute of Atomic Energy, Beijing 102413, China

  • 2.

    School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China

  • Received Date: 10 Jun 2019
  • Rev Recd Date: 27 Jun 2019
  • Publish Date: 25 Apr 2020
    Abstract
  • To investigate the blast-resistant performance of metallic sandwich structures subjected to intensive underwater impulsive loading, the lab-scaled underwater explosive simulator is employed to conduct water-based impulsive loading on metallic honeycomb sandwich structures. Based on the completed experimental study, this paper conducts a numerical investigation on the dynamic response and blast resistance of the metallic honeycomb sandwich structures subjected to intensive underwater impulsive loading. The results show that the comparison among the numerical simulation, experiments, and analytical solutions shows a good agreement in terms of dynamic response and transverse deflections. For the different honeycomb sandwich with identical thickness, the dynamic responses, failure modes, and blast-resistant performances of sandwich panels are shown different characteristics due to the energy absorption and loading transferring caused by the relative core densities. The impulsive resistance in terms of dynamic deformation, transverse deflection, reaction force, transmitted impulse and plastic energy dissipation is evaluated in relation to the load intensity and the relative core density. Quantitative structure-load-performance relation is carried out to facilitate the advanced study on the structures and provides guidance for structural design.

     

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