Abstract
The aim of the research reported here was to investigate the strain rate and temperature sensitivity of Rowanex 1100 Type 1A, a polymer-bonded explosive (PBX). The stress supported by this PBX at high rates of deformation (1750 ± 225 s−1) was found to be about an order of magnitude greater than that supported at low rates (0.015 s−1). Temperature was also found to have a large effect, with the strength of the material decreasing exponentially with temperature over the range studied (–60 to +60 °C). The exponents for the decay of the PBX’s strength with temperature at both low and high strain rates were the same within experimental error. So a temperature/strain rate shift factor could be determined and was found to be 31.2 ± 2.4 K/decade of strain rate.
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Walley, S.M., Taylor, N.E. & Williamson, D.M. Temperature and strain rate effects on the mechanical properties of a polymer-bonded explosive. Eur. Phys. J. Spec. Top. 227, 127–141 (2018). https://doi.org/10.1140/epjst/e2018-00060-6
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DOI: https://doi.org/10.1140/epjst/e2018-00060-6