A study on dynamic compressive properties of energetic materials at low temperature

Abstract The mechanical response of explosives at low temperature was investigated and an experiment apparatus is presented which is available to conduct dynamic compression for explosives at low temperature. Measurements of Comp. B and TNT explosives have been made. The data obtained experimentally depend greatly on the strain rate employed. It is found that the strain εm (εm is the strain at compressive strength σm) increased with increasing strain rate for both explosives at low temperature. The mechanical properties of Comp. B are higher than those of TNT for all measuring conditions in the present study. The effect of inertia on experiment curves was reduced by introducing a factor of flexibility.