HIGH RESOLUTION OPTICAL ANALYSIS OF DYNAMIC EXPERIMENTS ON PBXs

摘要

Previous research has provided information on the high strain rate behaviour of energetic systems. This paper outlines developments in the measurement of strain fields and strain localisation. In particular, the conditions for strain localisation in materials are discussed. The application of a photographic technique, digital speckle metrology, allows deformation fields to be measured. Although this does not provide sufficient resolution for strain localisations to be observed in detail, this aspect is being actively pursued.