Outputs (49)

The influence of inter-particle friction and the intermediate stress ratio on soil response under generalised stress conditions (2012)
Journal Article
Barreto, D., & O'Sullivan, C. (2012). The influence of inter-particle friction and the intermediate stress ratio on soil response under generalised stress conditions. Granular Matter, 14(4), 505-521. https://doi.org/10.1007/s10035-012-0354-z

Previous research studies have used either physical experiments or discrete element method (DEM) simulations to explore, independently, the influence of the coefficient of inter-particle friction (μ) and the intermediate stress ratio (b) on the behav... Read More about The influence of inter-particle friction and the intermediate stress ratio on soil response under generalised stress conditions.

Using DEM for the assessment of K0 in soils. (2011)
Presentation / Conference Contribution
Barreto, D. (2011). Using DEM for the assessment of K0 in soils. In Discrete Element Methods – Simulations of Discontinua: Theory and Applications - proceedings of the fifth international conference on discrete element methods (440-445)

Exploring the effects of stress history on the drained and undrained cyclic behaviour of granular materials. (2011)
Presentation / Conference Contribution
Barreto, D. (2011, January). Exploring the effects of stress history on the drained and undrained cyclic behaviour of granular materials. Paper presented at 5th International Conference on Geotechnical Earthquake Engineering (5-ICEGE)

This paper presents the results of 3D DEM simulations of granular materials subject to cyclic loading. While both the drained and undrained conditions are considered, the effects of depositional history and consolidation stress history on the stress-... Read More about Exploring the effects of stress history on the drained and undrained cyclic behaviour of granular materials..

Quantifying the Evolution of Soil Fabric Under Different Stress Paths (2009)
Presentation / Conference Contribution
Barreto, D., O’Sullivan, C., & Zdravkovic, L. (2009). Quantifying the Evolution of Soil Fabric Under Different Stress Paths. In POWDERS AND GRAINS 2009: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON MICROMECHANICS OF GRANULAR MEDIA (181-184). http

It is well recognized that the macro-scale response of soils is anisotropic in terms of strength, stiffness, permeability, etc. The source of this anisotropy is thought to be an anisotropy of the material itself. This anisotropy can be quantified usi... Read More about Quantifying the Evolution of Soil Fabric Under Different Stress Paths.

Radial periodic boundaries for axi-symmetric DEM simulations: development, implementation and validation. (2009)
Presentation / Conference Contribution
O'Sullivan, C., Cui, L., & Barreto, D. (2009, November). Radial periodic boundaries for axi-symmetric DEM simulations: development, implementation and validation. Paper presented at International Conference on Particle-Based Methods: Particles

No abstract available.

Specimen generation approaches for DEM simulations. (2008)
Presentation / Conference Contribution
O'Sullivan, C., Barreto, D., & Zdravkovic, L. (2008). Specimen generation approaches for DEM simulations. In S. E. Burns, P. W. Mayne, & J. C. Santamarina (Eds.), Proceedings of the 4th International Symposium on Deformation Characteristics of Geomaterial

Discrete Element Method (DEM) simulations ofelement tests cam provide significant insight into the micro-mechanics of soil response. It is well established that soil behaviour is strongly dependant on the initial density. Generation of particulate as... Read More about Specimen generation approaches for DEM simulations..

Evolution of soil fabric and its interpretation using different methods. (2008)
Presentation / Conference Contribution
Barreto, D. (2008, June). Evolution of soil fabric and its interpretation using different methods. Paper presented at British Geotechnical Association (BGA) Young Geotechnical Engineers' Symposium

Different methods to study the evolution of fabric anisotropy are presented. DEM simulations on assemblies of spheres subjected to different stress paths using a three-dimensional periodic cell are used for the analysis of these methods. The links be... Read More about Evolution of soil fabric and its interpretation using different methods..

DEM simulations of granular materials involving principal stress rotation. (2008)
Presentation / Conference Contribution
Barreto, D., O'Sullivan, C., & Zdravkovic, L. (2008, May). DEM simulations of granular materials involving principal stress rotation. Paper presented at Inaugural International Conference of the Engineering Mechanics Institute - EM'08

No abstract available.

Design of geotechnical structures according to Eurocode 7 and other International standards. (2004)
Presentation / Conference Contribution
Barreto, D. (2004, January). Design of geotechnical structures according to Eurocode 7 and other International standards. Paper presented at X Conference and V Colombian Congress on Geotechnics