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MODELLING OF SOIL CREEP WITH THE DISCRETE ELEMENT METHOD

MATTHEW R. KUHN (Department of Civil Engineering, Multnomah School of Engineering, University of Portland, Portland, OR 97203, USA)
JAMES K. MITCHELL (Department of Civil Engineering, University of California, Berkeley, CA 94720, USA)

Engineering Computations

ISSN: 0264-4401

Article publication date: 1 February 1992

Abstract

The discrete element method (DEM) was used to stimulate creep processes in granular materials. The authors present the main features of the numerical model, which include a new viscous mechanism for particle sliding, a new feedback technique for maintaining constant stress during creep, and a scaling technique that allowed monitoring the long‐term creep behaviour of a granular assembly. The creep behaviour of the numerical model exhibited the essential characteristics of soil creep—a creep rate that decreased rapidly with time, an increase in the creep rate with the applied deviator stress, and the beginning of creep rupture. The model's numerical performance is discussed, and representative results are presented.

Keywords

Citation

KUHN, M.R. and MITCHELL, J.K. (1992), "MODELLING OF SOIL CREEP WITH THE DISCRETE ELEMENT METHOD", Engineering Computations, Vol. 9 No. 2, pp. 277-287. https://doi.org/10.1108/eb023866

Publisher

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MCB UP Ltd

Copyright © 1992, MCB UP Limited