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A strength criterion for rocks

Mechanics of Materials, 2021
Abstract A simple strength criterion J 2 = α + β σ 3 is investigated to describe the ultimate stress capacity of rocks. This criterion takes the intermediate principal stress σ 2 into consideration. The nonlinear parabolic form on the meridian plane makes the present criterion is more suitable in rock mechanics than the ...
Chunguang Li   +3 more
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Strength Criterion for Intact Rock

open access: yesIndian Geotechnical Journal, 2016
Based on studies of the peak strength for soil by the authors, a simple strength criterion for intact rock is obtained in the general principal stress space. There are two material parameters in the equation. One is the uniaxial compression strength of the rock; the other describes the influence of stress level, and similar parameters are well studied ...
Martin D. Liu, Buddhima Indraratna
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General Strength Criterion for Geomaterials

open access: yesInternational Journal of Geomechanics, 2003
This note presents the results of a study on the variation of the strength of geomaterials. A general isotropic strength criterion is proposed which unifies the peak strength and critical state (or steady state) strength into one strength criterion. The proposed criterion describes the strength of a geomaterial in terms of its current stress state, its
Liu, M D, Carter, J P
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