High Strain Rate Characterisation of a Polymer Bonded Sugar

摘要

The mechanical properties of a polymer bonded sugar consisting of 78% sugar crystals, of modal particle size 310 μm, dispersed in an HTPB binder have been characterized in a split Hopkinson pressure bar system at a strain rate of 103 s–1 and temperatures from –100 to +20 °C. These high rate experiments were supplemented by further experiments in an Instron at 10–3 s–1. The material behavior is compared to that of other polymer bonded explosives and simulants. In order to further understand the structural deformation mechanisms specimens of both pristine material and that after Instron testing were examined using X-ray microtomography.