Summary
A dilatancy model is presented which seems capable of simulating the results of laboratory tests on rock samples. The fundamental assumption incorporated in the model is that dilatancy is caused by the opening of cracks, where the cracks open in the least compressive stress direction (Brace et al., 1966). Its simplicity and compatibility with numerical techniques, involving the simulation of both static and dynamic stress fields, permits prediction of dilatancy induced effects for stress states and loading conditions which are not experimentally attainable.
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Cherry, J.T., Schock, R.N. & Sweet, J. A theoretical model of the dilatant behavior of a brittle rock. PAGEOPH 113, 183–196 (1975). https://doi.org/10.1007/BF01592909
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DOI: https://doi.org/10.1007/BF01592909