Abstract:Catastrophic failure of brittle rocks is important in managing risk associated with system-sized material failure. Such failure is caused by nucleation, growth, and coalescence of microcracks that spontaneously self-organize along localized damage zones under compressive stress. Here we present X-ray microtomography observations that elucidate the in situ micron-scale processes, obtained from novel tri-axial compression experiments conducted in a synchrotron. We examine the effect of microstructural heterogene… Show more
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