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)


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.


Compaction PBX direct impact shock 



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


  1. 1.
    Barua, A., Horie, Y., Zhou, M.: Microstructural level response of HMX–Estane polymer-bonded explosive under effects of transient stress waves. Proc. R. Soc. London A Math. Phys. Eng. Sci. 468, 3725–3744 (2012)CrossRefGoogle Scholar
  2. 2.
    Baer, M.R.: Modeling heterogeneous energetic materials at the mesoscale. Thermochim. Acta. 384, 351–367 (2002)CrossRefGoogle Scholar
  3. 3.
    Bodelot, L., Escobedo-Diaz, J.P., Trujillo, C.P., et al.: Microstructural changes and in-situ observation of localization in OFHC copper under dynamic loading. Int. J. Plast. 74, 58–74 (2015)CrossRefGoogle Scholar
  4. 4.
    Ravindran, S., Tessema, A., Kidane, A.: Note: Dynamic meso-scale full field surface deformation measurement of heterogeneous materials. Rev. Sci. Instrum. 87, 36108 (2016)CrossRefGoogle Scholar
  5. 5.
    Ravindran, S., Tessema, A., Kidane, A.: Local deformation and failure mechanisms of polymer bonded energetic materials subjected to high strain rate loading. J. Dyn. Behav. Mater. 2, 146–156 (2016)CrossRefGoogle Scholar
  6. 6.
    Ravindran, S., Tessema, A., Kidane, A.: Multiscale damage evolution in polymer bonded sugar under dynamic loading. Mech. Mater. 114, 97–106 (2017)CrossRefGoogle Scholar
  7. 7.
    Othman, R., Aloui, S., Poitou, A.: Identification of non-homogeneous stress fields in dynamic experiments with a non-parametric method. Polym. Test. 29, 616–623 (2010)CrossRefGoogle Scholar
  8. 8.
    Koohbor, B., Kidane, A., Lu, W.-Y., Sutton, M.A.: Investigation of the dynamic stress–strain response of compressible polymeric foam using a non-parametric analysis. Int J Impact Eng. 91, 170–182 (2016)CrossRefGoogle Scholar
  9. 9.
    Pierron, F., Zhu, H., Siviour, C.: Beyond Hopkinson’s bar. Philos. Trans. R. Soc. London A Math. Phys. Eng. Sci. 372, 20130195 (2014)CrossRefGoogle Scholar

Copyright information

© The Society for Experimental Mechanics, Inc. 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringUniversity of South CarolinaColumbiaUSA

Personalised recommendations