Brazilian Tensile Strength Testing

The paper discusses the direct and Brazilian tensile strength testing data in terms of the mechanical properties of rocks. The statistical correlation factors by categories of rocks only offer rough estimates of the direct strength in tension using the Brazilian tensile strength test data. It is sug...

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Bibliographic Details
Published in:Journal of mining science 2021-11, Vol.57 (6), p.922-932
Main Author: Efimov, V. P.
Format: Article
Language:English
Subjects:
Axial stress
Earth and Environmental Science
Earth Sciences
Geomechanics
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Mechanical properties
Methods
Mineral Resources
Nonuniformity
Rock
Rock properties
Rocks
Statistical correlation
Strength testing
Stress distribution
Tensile strength
Tension
Testing
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Summary:The paper discusses the direct and Brazilian tensile strength testing data in terms of the mechanical properties of rocks. The statistical correlation factors by categories of rocks only offer rough estimates of the direct strength in tension using the Brazilian tensile strength test data. It is suggested to compare the two methods using models which include the structure of a material. It is shown that when the analysis includes the biaxial stress field, which leads to a decrease in the strength by the Brazilian test as compared with the strength value from the direct tension, as well as when the analysis includes the nonuniformity of the tensile stresses, which brings an opposite effect, the tensile strength values of the two methods are correlated more accurately.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739121060053