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A damage initiation criterion for low porosity rocks


, : A damage initiation criterion for low porosity rocks. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts: -4, Pages 554. 1997.

When low porosity rock samples are loaded beyond a certain threshold, microcracking occurs. This threshold can be seen as a yielding condition in an elasto-plastic model, or as a damage initiation criterion in an internal state variable constitutive model. In this paper, the authors present a simple multiaxial formulation used to describe this threshold in the conventional stress space. The criterion is applied to a hard rock (granite) and to a soft rock (rocksalt), and its significance is discussed.

US$19.90

DOI: 10.1016/s1365-1609(97)00145-7


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