DEM of triaxial tests on crushable sand

de Bono, John P. and McDowell, Glenn R. (2014) DEM of triaxial tests on crushable sand. Granular Matter, 16 (4). pp. 551-562. ISSN 1434-5021

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This paper presents simulations of high-pressure triaxial shear tests on a crushable sand. The discrete element method is used, featuring a large number of particles and avoiding the use of agglomerates. The triaxial model features a flexible membrane, therefore allowing realistic deformation, and a simple breakage mechanism is implemented using the octahedral shear stress induced in the particles. The simulations show that particle crushing is essential to replicate the realistic behaviour of sand (in particular the volumetric contraction) in high-pressure shear tests. The general effects of crushing during shear are explored, including its effects on critical states, and the influence of particle strength and confining pressure on the degree of crushing are discussed.

Item Type: Article
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Civil Engineering
Identification Number:
Depositing User: de Bono, Dr J. P.
Date Deposited: 29 Jul 2014 08:32
Last Modified: 16 Sep 2016 21:31

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