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On the Response of Polymer Bonded Explosives at Different Impact Velocities

  • Suraj RavindranEmail author
  • Addis Tessema
  • Addis Kidane
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Multiscale experiments are performed to understand the deformation mechanisms in polymer bonded explosives at a range of impact velocities. The experiments are conducted in a direct impact configuration, where a polycarbonate projectile is directly shot onto polymer bonded sugar samples at different impact velocities. During the deformation process, the images are captured at five million frames/second using an ultrahigh speed camera. For the macro scale experiment, the images are captured at a resolution of 75 μm/pixel and for the mesoscale experiments, the magnification factor is 10 μm/pixel. The deformation field is obtained using digital image correlation technique. From the macroscale displacement field, the spatial stress distribution is calculated using a nonparametric method. The meso-scale experiments are used to explain the deformation mechanisms observed at the macroscale.

Keywords

Compaction PBX direct impact shock 

Notes

Acknowledgement

The financial support of Air Force Office of Scientific Research (AFOSR) under Grant No. FA9550-14-1-0209 is gratefully acknowledged.

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Copyright information

© The Society for Experimental Mechanics, Inc. 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringUniversity of South CarolinaColumbiaUSA

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