Fracture of Structured Rocks and Materials in Nonuniform Stress Fields

The article reports the experimental data on brittle rock strength from the bending tests of beams and from diametrical fracture of disk specimens with an axial hole. The author uses the nonlocal fracture approach and compares the strength from the tests with the tensile strength of rocks. It is sho...

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Bibliographic Details
Published in:Journal of mining science 2020-07, Vol.56 (4), p.529-535
Main Author: Efimov, V. P.
Format: Article
Language:English
Subjects:
Bend strength
Deformation
Earth and Environmental Science
Earth Sciences
Fracture testing
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Mineral Resources
Rock
Rock Failure
Rocks
Stress distribution
Tensile strength
Tests
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Summary:The article reports the experimental data on brittle rock strength from the bending tests of beams and from diametrical fracture of disk specimens with an axial hole. The author uses the nonlocal fracture approach and compares the strength from the tests with the tensile strength of rocks. It is shown that the different geometry fracture tests allow determining the structural parameter of a medium.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739120046824