https://doi.org/10.1140/epjst/e2018-00060-6
Regular Article
Temperature and strain rate effects on the mechanical properties of a polymer-bonded explosive
SMF Fracture and Shock Physics Group, The Cavendish Laboratory,
J.J. Thomson Avenue,
Cambridge
CB3 0HE, UK
a e-mail: smw14@cam.ac.uk
Received:
28
July
2017
Published online: 10
September
2018
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.
© The Author(s) 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
