A note on the differences between Drucker-Prager and Mohr-Coulomb shear strength criteria-Reference-Cited by-同舟云学术

A note on the differences between Drucker-Prager and Mohr-Coulomb shear strength criteria

Published:2018-10-20 Issue:3 Volume:40 Page:163-169
ISSN:2083-831X
Container-title:Studia Geotechnica et Mechanica
language:en
Short-container-title:

Author:

Wojciechowski Marek¹

Affiliation:

1. Faculty of Civil Engineering, Architecture and Environmental Engineering , Technical University of Łódź, Al . Politechniki 6, 90-924 Łódź , Poland

Abstract

Abstract A systematic approach to measure the differences between Mohr-Coulomb (MC) and Drucker-Prager (DP) shear strength criteria used commonly in soil and rock mechanics is presented. It is shown that the DP criterion generates a shear strength between 0.6 and 3 times the MC strength, for the same friction angle and cohesion parameters. The appropriate conditions for obtaining equal shear strengths are given. Moreover, some new DP failure surfaces are proposed which minimize the differences relative to the MC predictions. The equivalence of the DP and MC criteria under plane strain conditions is also examined.

Publisher

Walter de Gruyter GmbH

Subject

Computers in Earth Sciences,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Civil and Structural Engineering

Link

https://www.sciendo.com/pdf/10.2478/sgem-2018-0016

Reference11 articles.

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2. Alejano, L. R. and Bobet, A. (2012). Drucker-Prager criterion. Rock Mechanics and Rock Engineering, 45(6):995–999.

3. Cudny, M. and Binder, K. (2005). Kryteria wytrzymałości na ścinanie gruntu w zagadnieniach geotechniki. Inżynieria Morska i Geotechnika 456–465.

4. Griffiths, D. (1990). Failure criteria interpretation based on Mohr-Coulomb friction. Journal of Geotechnical Engineering, 116(6):986–999.

5. Griffiths, D. and Huang, J. (2009). Observations on the extended Matsuoka–Nakai failure criterion. International Journal for Numerical and Analytical Methods in Geomechanics, 33(17):1889–1905.

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