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Chinese Journal of High Pressure Physics  > 2011  >  25(2): 159-164 .
LI Jun-Ling, LU Fang-Yun, FU Hua, ZHAO Yu-Gang, TAN Duo-Wang. Research on the Dynamic Behavior of a PBX Explosive[J]. Chinese Journal of High Pressure Physics, 2011, 25(2): 159-164 . doi: 10.11858/gywlxb.2011.02.012
Citation: LI Jun-Ling, LU Fang-Yun, FU Hua, ZHAO Yu-Gang, TAN Duo-Wang. Research on the Dynamic Behavior of a PBX Explosive[J]. Chinese Journal of High Pressure Physics, 2011, 25(2): 159-164 . doi: 10.11858/gywlxb.2011.02.012
shu

Research on the Dynamic Behavior of a PBX Explosive

doi: 10.11858/gywlxb.2011.02.012
  • 1.

    Institute of Engineering Physics, College of Science, National University of Defense Technology, Changsha 410073, China;

  • 2.

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

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  • Corresponding author: LU Fang-Yun
  • Received Date: 13 Jan 2010
  • Rev Recd Date: 11 Apr 2010
  • Publish Date: 15 Apr 2011
    Abstract
  • PBX explosive is the main charge of modern weapons, so its mechanical behavior determines the survival ability of weapons. To study the dynamic behavior of PBX explosive, a series of split Hopkinson pressure bar (SHPB) tests for PBX explosive have been carried out. With combination of the semiconductor strain gauge and quartz crystal transducer, the validity of the experimental data was obtained. In addition, the stress equilibrium of the specimen and constant strain rate loading were realized experimentally using wave shaping technique. The stress-strain curves of PBX explosive under different strain rates (90~410 s-1) were acquired. According to the variations of the dynamic modulus, failure strength and failure strain with strain rate, a constitutive model of the PBX explosive under uniaxial compression was proposed. The fitted curves derived from the developed model agree well with the experimental results.

     

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    • References(15)
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