Volume 18 Issue 3
Apr 2015
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ZHAO Xi-Jin, LU Fang-Yun, WANG Wu, LI Ying-Hua, LIN Yu-Liang. The Experimental and Theoretical Study on the Incident Pulse Shaping Technique[J]. Chinese Journal of High Pressure Physics, 2004, 18(3): 231-236 . doi: 10.11858/gywlxb.2004.03.007
Citation: ZHAO Xi-Jin, LU Fang-Yun, WANG Wu, LI Ying-Hua, LIN Yu-Liang. The Experimental and Theoretical Study on the Incident Pulse Shaping Technique[J]. Chinese Journal of High Pressure Physics, 2004, 18(3): 231-236 . doi: 10.11858/gywlxb.2004.03.007

The Experimental and Theoretical Study on the Incident Pulse Shaping Technique

doi: 10.11858/gywlxb.2004.03.007
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  • Corresponding author: ZHAO Xi-Jin
  • Received Date: 22 Aug 2003
  • Rev Recd Date: 12 Jan 2004
  • Publish Date: 05 Sep 2004
  • We modified the conventional Split Hopkinson Pressure Bar (SHPB) technique by shaping the incident pulse such that the samples are in dynamic stress equilibrium and in homogeneous deformation during the tests of silicon rubber. According to the method of pulse shaper designing, we had the samples loaded under constant strain rate, and we got the direct relation between the size of pulse shaper and strain rate. A model to predict the incident waveform in the SHPB experiment by use of a single pulse shaper is built according to the theory of stress wave. Incident waveform from experiment and model prediction with H62 brass shaper are obtained. Model predictions are in good agreement with experimental results.

     

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