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DEM of triaxial tests on crushable sand

de Bono, John P.; McDowell, Glenn R.

Authors

John P. de Bono john.debono@nottingham.ac.uk

Glenn R. McDowell glenn.mcdowell@nottingham.ac.uk



Abstract

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.

Journal Article Type Article
Publication Date Jan 1, 2014
Journal Granular Matter
Print ISSN 1434-5021
Electronic ISSN 1434-5021
Publisher Humana Press
Peer Reviewed Peer Reviewed
Volume 16
Issue 4
APA6 Citation de Bono, J. P., & McDowell, G. R. (2014). DEM of triaxial tests on crushable sand. Granular Matter, 16(4), doi:10.1007/s10035-014-0500-x
DOI https://doi.org/10.1007/s10035-014-0500-x
Publisher URL http://link.springer.com/article/10.1007/s10035-014-0500-x
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0



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