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Dynamic shear response of a polymer bonded explosive using a modified Hopkinson bar apparatus

  • P. D. Zhao
  • F. Y. Lu
  • Y. L. Lin
  • R. Chen
  • L. Lu
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

An innovative Hopkinson pressure bar system for testing the shear response of materials at high strain rates has been developed. A novel single-lap specimen of a polymer bonded explosive (PBX) is used. Instead of strain gauges mounted on the bars, one quartz force transducer is sandwiched between the clamp and the transmission bar to directly measure the weakly loading forces. A laser gap gauge is employed to monitor the shear strain of the specimen, which is based on the luminous flux method. Finite element code ANSYS is used to analyze the stress state in the specimen. Experimental results show that this new method is effective and reliable for determining the shear stress-strain responses of the soft materials at high strain rates.

Keywords

High Strain Rate Shear Strain Rate Interlaminar Shear Strength Quartz Transducer Finite Element Code ANSYS 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Businees Media, LLC 2011

Authors and Affiliations

  • P. D. Zhao
    • 1
  • F. Y. Lu
    • 1
  • Y. L. Lin
    • 1
  • R. Chen
    • 1
  • L. Lu
    • 2
  1. 1.College of ScienceNational Univ. of Defense TechnologyChangshaChina
  2. 2.College of electronic science and engineeringNational Univ. of Defense TechnologyChangshaChina

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