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Chinese Journal of High Pressure Physics  > 2014  >  28(4): 423-428.
FU Hua, PENG Jin-Hua, LI Jun-Ling, TANG Xiao-Rong, TAN Duo-Wang. A New Measurement Method Applied to Hopkinson Bar Experiment[J]. Chinese Journal of High Pressure Physics, 2014, 28(4): 423-428. doi: 10.11858/gywlxb.2014.04.006
Citation: FU Hua, PENG Jin-Hua, LI Jun-Ling, TANG Xiao-Rong, TAN Duo-Wang. A New Measurement Method Applied to Hopkinson Bar Experiment[J]. Chinese Journal of High Pressure Physics, 2014, 28(4): 423-428. doi: 10.11858/gywlxb.2014.04.006
shu

A New Measurement Method Applied to Hopkinson Bar Experiment

doi: 10.11858/gywlxb.2014.04.006
  • 1.

    National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621999, China

  • 2.

    School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

  • 3.

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

  • Received Date: 12 Aug 2012
  • Rev Recd Date: 21 Sep 2012
    Abstract
  • There is an increasing attention in determining the dynamic mechanical properties of low-impedance and brittle materials, but it is difficult to acquire exact experimental results by a conventional Hopkinson pressure bar test because of their small failure strain and weak transmission strain signal.A new method applied to Hopkinson bar dynamic mechanics test was presented in this paper.The velocities of input and output bar ends were measured by the laser micro-displacement interferometer technology, and the stress-strain relation of sample was achieved by this method.The proposed method is validated through numerical simulation and experiment.

     

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