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Chinese Journal of High Pressure Physics  > 2010  >  24(5): 383-387 .
YUAN Shuai, HU Hai-Bo, ZHANG Chong-Yu, LI Ping. Simulation on Head-on Bulging Dynamic Behavior of Lead Flyer with SPH Method[J]. Chinese Journal of High Pressure Physics, 2010, 24(5): 383-387 . doi: 10.11858/gywlxb.2010.05.011
Citation: YUAN Shuai, HU Hai-Bo, ZHANG Chong-Yu, LI Ping. Simulation on Head-on Bulging Dynamic Behavior of Lead Flyer with SPH Method[J]. Chinese Journal of High Pressure Physics, 2010, 24(5): 383-387 . doi: 10.11858/gywlxb.2010.05.011
shu

Simulation on Head-on Bulging Dynamic Behavior of Lead Flyer with SPH Method

doi: 10.11858/gywlxb.2010.05.011

  • National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China

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  • Corresponding author: YUAN Shuai
  • Received Date: 03 Sep 2009
  • Rev Recd Date: 17 Dec 2009
  • Publish Date: 15 Oct 2010
    Abstract
  • Using the smoothed particle hydrodynamics (SPH) method, the dynamic behavior of assembly flyers (Al+Pb) driven by cylindrical explosive ignited at two opposite points of the surface was simulated numerically. The calculated images for the generation and evolvement of jet-like bulge of lead sample at collision zone were obtained. The bulge emerges multi-layer structures observed in the simulated graphs, which consist of scatter fragments in the head and relatively condense structure in the rear, are in agreement with the experimental results. Accordingly, the SPH method can well deal with the failure of the metals with low melting point and low strength in the counter strike region, such as lead.

     

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