Tensile Strength of Rocks by Test Data on Disc-Shaped Specimens with a Hole Drilled through the Disc Center
V. P. EFIMOV
Chinakal Institute of Mining, Siberian Branch, Russian Academy of Sciences, Krasnyi pr. 54, Novosibirsk, 630091 Russia
Keywords: разрушение, прочность, растяжение, “бразильская проба”, нелокальные критерии прочности, failure, strength, tension, Brazilian specimen, non-local strength criterion
Abstract
The author reports test data on disc-shaped specimens of rocks and model media with a hole drilled through the center of the specimens loaded along the diameter. The test data processing uses non-local failure criteria. The calculated destructive forces are compared with the measured destructive loads. Based on the tests of specimens with the central through holes, the tensile strength algorithm is presented.
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