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Temperature and strain rate effects on the mechanical properties of a polymer-bonded explosive

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Peer-reviewed

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Authors

Walley, S. M. 
Taylor, N. E. 
Williamson, D. M. 

Abstract

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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Keywords

Regular Article, Advances in the Characterization, Modeling and Simulation of Materials Subjected to High Strain Rates

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Conference Name

Journal ISSN

1951-6355
1951-6401

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