Modified Mohr-Coulomb Theory for Triaxial State of Stress


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The Mohr-Coulomb failure theory presents the major drawback that can be applied only for plane state of stress. In this paper, we propose a modification of the Mohr-Coulomb theory that might eliminate this disadvantage. It is proposed to replace the three Mohr's circles for spatial state of stress with one “virtual circle” with diameter σ13±2ρ, concentric with the circle that has the diameter σ13. The triaxial state of stress and biaxial state of stress are considered to be equivalent dangerous.



Edited by:

Laurentiu Slatineanu, Vasile Merticaru, Florin Negoescu, Margareta Coteata, Razvan Pacurar, Gabriela Strnad, Irina Tita, Gheorghe Oancea, Petru Dusa, Eduard Nitu and Oana Dodun




P. D. Barsanescu et al., "Modified Mohr-Coulomb Theory for Triaxial State of Stress", Applied Mechanics and Materials, Vols. 809-810, pp. 658-663, 2015

Online since:

November 2015




* - Corresponding Author

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