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Chinese Journal of High Pressure Physics  > 2009  >  23(5): 360-366 .
LI Shun-Bo, DONG Zhao-Xing, QI Yan-Jun, SUN Shu,  . Numerical Simulation on Propagation of Underwater Blast Shock Wave in Absorber Structure[J]. Chinese Journal of High Pressure Physics, 2009, 23(5): 360-366 . doi: 10.11858/gywlxb.2009.05.007
Citation: LI Shun-Bo, DONG Zhao-Xing, QI Yan-Jun, SUN Shu,  . Numerical Simulation on Propagation of Underwater Blast Shock Wave in Absorber Structure[J]. Chinese Journal of High Pressure Physics, 2009, 23(5): 360-366 . doi: 10.11858/gywlxb.2009.05.007
shu

Numerical Simulation on Propagation of Underwater Blast Shock Wave in Absorber Structure

doi: 10.11858/gywlxb.2009.05.007
  • 1.

    State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology, Xuzhou 221008, China;

  • 2.

    School of Architecture and Civil Engineering, China University of Mining & Technology, Xuzhou 221116, China

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  • Corresponding author: DONG Zhao-Xing
  • Received Date: 05 Jan 2009
  • Rev Recd Date: 22 Feb 2009
  • Publish Date: 15 Oct 2009
    Abstract
  • The underwater blast shock wave in absorber structure was numerically simulated by ANSYS/LS-DYNA. The results showed that the shock waves decay in the absorption foam layer due to the effect of the constitutive of the foam material, and the peak pressure of the stress wave in the multi-layer structure containing foam concrete has a greater decline than that with foam aluminum, but this has little impact on shock wave transmission. The shock peak pressure in the protective structure with absorbed layer is only 14% of that without an absorbed layer. Further analysis showed that the total energy of foam concrete is higher than that of foam aluminum, indicating foam concrete is superior to foamed aluminum as the absorbed layer in protective structure.

     

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