All Outputs (5)

Discrete element modelling of one-dimensional compression of cemented sand (2013)
Journal Article
de Bono, J. P., & McDowell, G. R. (2014). Discrete element modelling of one-dimensional compression of cemented sand. Granular Matter, 16(1), https://doi.org/10.1007/s10035-013-0466-0

It has recently been shown that the one-dimensional normal compression of sand can be modelled effectively in three-dimensions using the discrete element method, and that the slope of the compression curve (in log voids ratio–log stress space) is con... Read More about Discrete element modelling of one-dimensional compression of cemented sand.

Micro mechanics of isotropic normal compression (2013)
Journal Article
McDowell, G. R., de Bono, J. P., Yue, P., & Yu, H.-S. (2013). Micro mechanics of isotropic normal compression. Géotechnique Letters, 3(4), https://doi.org/10.1680/geolett.13.00050

Discrete element modelling has been used to investigate the micro mechanics of isotropic normal compression. One-dimensional (1D) normal compression has previously been modelled in three dimensions using an oedometer and a large number of particles a... Read More about Micro mechanics of isotropic normal compression.

A new creep law for crushable aggregates (2013)
Journal Article
McDowell, G. R., & de Bono, J. P. (2013). A new creep law for crushable aggregates. Géotechnique Letters, 3(3), https://doi.org/10.1680/geolett.13.00030

The authors have recently proposed a new equation for the one-dimensional (1D) normal compression line, which contains a parameter controlling the size effect on average strength. They showed that the equation held for a wide range of discrete-elemen... Read More about A new creep law for crushable aggregates.

A study of geogrid-reinforced ballast using laboratory pull-out tests and discrete element modelling (2013)
Journal Article
Chen, C., McDowell, G. R., & Thom, N. (in press). A study of geogrid-reinforced ballast using laboratory pull-out tests and discrete element modelling. Geomechanics and Geoengineering, 8(4), https://doi.org/10.1080/17486025.2013.805253

This paper presents an evaluation of the behaviour of geogrid-reinforced railway ballast. Experimental large box pull-out tests were conducted to examine the key parameters influencing the interaction between ballast and the geogrid. The experimental... Read More about A study of geogrid-reinforced ballast using laboratory pull-out tests and discrete element modelling.

Discrete element modelling of uniaxial constant strain rate tests on asphalt mixtures (2013)
Journal Article
Cai, W., McDowell, G. R., & Airey, G. (2013). Discrete element modelling of uniaxial constant strain rate tests on asphalt mixtures. Granular Matter, 15(2), https://doi.org/10.1007/s10035-013-0396-x

Constant strain rate tests for a graded asphalt mixture under three constant strain rates have been undertaken in the laboratory. The Discrete Element Model has been used to simulate the laboratory tests with a numerical sample preparation procedure... Read More about Discrete element modelling of uniaxial constant strain rate tests on asphalt mixtures.