Determination of the ultimate tensile strength of rocks by the unaixial compression test data

Based on the hypothesized material-independent relationship of the normal and shear stresses on the plane of shear, the authors have plotted an envelope of Mohr’s circles, that represents a rock strength condition in the compression stress domain. The relation of the maximal principal stresses exten...

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Bibliographic Details
Published in:	Journal of mining science Vol. 45; no. 3; pp. 235 - 239
Main Authors:	Rychkov, B. A., Mamatov, Zh. Y., Kondrat’eva, E. I.
Format:	Journal Article
Language:	English
Published:	Dordrecht SP MAIK Nauka/Interperiodica 01-05-2009
Subjects:	Compression tests Earth and Environmental Science Earth Sciences Geomechanics Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Hyperbolas Mathematical analysis Mineral Resources Planes Rocks Shear stress Stresses Ultimate tensile strength Rocks ultimate tensile strength stresses plane of shear strength condition Mohr’s circles
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Summary:	Based on the hypothesized material-independent relationship of the normal and shear stresses on the plane of shear, the authors have plotted an envelope of Mohr’s circles, that represents a rock strength condition in the compression stress domain. The relation of the maximal principal stresses extends to the tension domain as a hyperbola, and its parameters can be obtained only in the non-uniform triaxial compression tests. The hyperbolic equation derived provides, in particular, the ultimate tensile strength of rocks.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	1062-7391 1573-8736
DOI:	10.1007/s10913-009-0030-9