ABOUT ONE CRITERIA OF STRENGTH OF ROCKS
https://doi.org/10.22405/2226-8383-2017-18-3-72-87
Abstract
Plastic deformation of rocks and generation of residual deformation field are related to shear and tensile cracks formation. For conditions of three-dimensional stress state a strength (yield) criterion is proposed that takes into consideration combined effect of two kinds of failure (shear and tensile failure) and is based on associated flow rule. The developed criteria relations were verified during description of results of rocks mechanical tests. Acceptable concordance between calculated and experimental values of breaking stresses and strains was obtained. Developed algorithm for critical stresses, elastic and plastic deformations determining is easy enough for numerical realization in three-dimensional problems of mathematical modelling of deformation and failure processes of large-scale mine technical objects.
About the Authors
A. A. Baryakh
PFRC UB RAS
Russian Federation
Russian Federation
doctor of technical sciences, professor, corresponding member of Russian Academy of Sciences, Director
N. A. Samodelkina
Ural Branch RAS
Russian Federation
Russian Federation
candidate of technical sciences, leading researcher, Mining Institute
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Review
For citations:
Baryakh A.A., Samodelkina N.A. ABOUT ONE CRITERIA OF STRENGTH OF ROCKS. Chebyshevskii Sbornik. 2017;18(3):72-87. (In Russ.) https://doi.org/10.22405/2226-8383-2017-18-3-72-87
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