All Outputs (4)

Discrete element modelling of scaled railway ballast under triaxial conditions (2016)
Journal Article
McDowell, G. R., & Li, H. (in press). Discrete element modelling of scaled railway ballast under triaxial conditions. Granular Matter, https://doi.org/10.1007/s10035-016-0663-8

The aim of this study is to demonstrate the use of tetrahedral clumps to model scaled railway ballast using the discrete element method (DEM). In experimental triaxial tests, the peak friction angles for scaled ballast are less sensitive to the confi... Read More about Discrete element modelling of scaled railway ballast under triaxial conditions.

Particle breakage criteria in discrete-element modelling (2016)
Journal Article
De Bono, J., & McDowell, G. (2016). Particle breakage criteria in discrete-element modelling. Géotechnique, 66(12), 1014-1027. https://doi.org/10.1680/jgeot.15.P.280

© 2016, ICE Publishing. All rights reserved. Previous work by the authors using the discrete-element method (DEM) has used the octahedral shear stress within a sphere together with a Weibull distribution of strengths and a size effect on average stre... Read More about Particle breakage criteria in discrete-element modelling.

Investigating the effects of particle shape on normal compression and overconsolidation using DEM (2016)
Journal Article
de Bono, J. P., & McDowell, G. R. (in press). Investigating the effects of particle shape on normal compression and overconsolidation using DEM. Granular Matter, 18(3), https://doi.org/10.1007/s10035-016-0605-5

Discrete element modelling of normal compression has been simulated on a sample of breakable two-ball clumps and compared to that of spheres. In both cases the size effect on strength is assumed to be that of real silica sand. The slopes of the norma... Read More about Investigating the effects of particle shape on normal compression and overconsolidation using DEM.

The fractal micro mechanics of normal compression (2016)
Journal Article
de Bono, J. P., & McDowell, G. R. (2016). The fractal micro mechanics of normal compression. Computers and Geotechnics, 78, 11-24. https://doi.org/10.1016/j.compgeo.2016.04.018

The fundamental fractal micro mechanics of normal compression of granular materials is studied using DEM. This paper examines the emergence of a finite fractal bounded by two particle sizes as stress increases, and the evolution of various definition... Read More about The fractal micro mechanics of normal compression.