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Outputs (326)

Micromechanical insight into the undrained instability of granular materials: deformation characteristics of geomaterials. (2015)
Presentation / Conference Contribution
Barreto, D., Prada-Sarmiento, L. F., & Ramos-Cañón, A. M. (2015). Micromechanical insight into the undrained instability of granular materials: deformation characteristics of geomaterials. In V. A. Rinaldi, M. E. Zeballos, & J. J. Clariá (Eds.), Deform

There is no agreement between experimental researchers whether the point where a granular material responds with a large change of stresses, strains or excess pore water pressure given a prescribed small input of some of the same variables defines a... Read More about Micromechanical insight into the undrained instability of granular materials: deformation characteristics of geomaterials..

An overview of research activities and achievement in Geotechnics from the Scottish Universities Geotechnics Network (SUGN) (2015)
Presentation / Conference Contribution
Leung, A., Anastasopoulos, I. X., Augarde, C. E., Barreto, D., Brennan, A. J., Brown, M. J. Z., …Zielinski, M. (2015). An overview of research activities and achievement in Geotechnics from the Scottish Universities Geotechnics Network (SUGN). In Geote

Design of geotechnical systems is often challenging as it requires the understanding of complex soil behaviour and its influence on field-scale performance of geo-structures. To advance the scientific knowledge and the technological development in ge... Read More about An overview of research activities and achievement in Geotechnics from the Scottish Universities Geotechnics Network (SUGN).

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)

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.

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..

Moisture retention and movement in landfilled waste (2005)
Presentation / Conference Contribution
Kazimoglu, Y. K., McDougall, J., & Pyrah, I. (2005). Moisture retention and movement in landfilled waste. In Proceedings of the International Conference on Problematic Soils: GEOPRPOB 2005 (307-314)

No abstract available.

Settlement-The Short and the Long of it (2011)
Presentation / Conference Contribution
McDougall, J. (2011). Settlement-The Short and the Long of it. In D. Zekkos (Ed.), Geotechnical Characterization, Field Measurement, and Laboratory Testing of Municipal Solid Waste (76-111). https://doi.org/10.1061/41146%28395%293

Total settlement in municipal solid waste (MSW) landfills can be considerable, from 25% to 50% of original fill thickness (Bjarngard and Edgers, 1990). Some occurs very quickly, i.e. during the filling phase (or short term), but there remains a signi... Read More about Settlement-The Short and the Long of it.

Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects (2013)
Journal Article
McDougall, J., Kelly, D., & Barreto, D. (2013). Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects. Acta geotechnica, 8(6), 619-627. https://doi.org/10.1007/s11440-013-0212-0

Soil particles may be lost through dissolution, degradation or erosion. Regardless of the process of loss, there follows a change in soil structure both in terms of phase composition and grading. In this paper, the influence of size and amount of par... Read More about Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects.

Quantifying stress-induced anisotropy using inter-void constrictions (2013)
Journal Article
Shire, T., O'Sullivan, C., Barreto, D., & Gaudray, G. (2013). Quantifying stress-induced anisotropy using inter-void constrictions. Géotechnique, 63(1), 85-91. https://doi.org/10.1680/geot.11.t.020

In particulate geomechanics it is common to quantify fabric anisotropy using contact and particle orientations. Measurement of void anisotropy is less common, most likely owing to the difficulties associated with defining individual voids. Here a Del... Read More about Quantifying stress-induced anisotropy using inter-void constrictions.

Volumetric consequences of particle loss by grading entropy (2013)
Journal Article
McDougall, J., Imre, E., Barreto, D., & Kelly, D. (2013). Volumetric consequences of particle loss by grading entropy. Géotechnique, 63(3), 262-266. https://doi.org/10.1680/geot.sip13.t.002

Chemical and biological processes, such as dissolution in gypsiferous sands and biodegradation in waste refuse, result in mass or particle loss, which in turn lead to changes in solid and void phase volumes and grading. Data on phase volume and gradi... Read More about Volumetric consequences of particle loss by grading entropy.

Use of DEM and elastic stability analysis to explain the influence of the intermediate principal stress on shear strength (2013)
Journal Article
O'Sullivan, C., Wadee, M., Hanley, K., & Barreto, D. (2013). Use of DEM and elastic stability analysis to explain the influence of the intermediate principal stress on shear strength. Géotechnique, 63(15), 1298-1309. https://doi.org/10.1680/geot.12.p.153

One interesting aspect of soil response is the sensitivity of the mechanical behaviour to the intermediate principal stress. In this study, a fundamental mechanism that explains the influence of the intermediate stress ratio (b) on soil shear strengt... Read More about Use of DEM and elastic stability analysis to explain the influence of the intermediate principal stress on shear strength.

The use of electronic voting systems to enhance deep learning. (2012)
Presentation / Conference Contribution
Barreto, D. (2012). The use of electronic voting systems to enhance deep learning. In B. McCabe, M. Pantazidou, & D. Phillips (Eds.), Shaking the Foundations of Geo-engineering Education - proceedings of the international conference Shaking the Foundation

The present paper introduces a technology-enhanced teaching method that promotes deep learning. Four stages that correspond to four different student cohorts were used for its development and to analyse its effectiveness. The effectiveness of the m... Read More about The use of electronic voting systems to enhance deep learning..

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.

Visual habit: A tool for energy based prediction of crystal habits (2014)
Presentation / Conference Contribution
Hammond, R. B., Pickering, J., Ramachandran, V., Roberts, K. J., & Soufian, M. (2014). Visual habit: A tool for energy based prediction of crystal habits. In 45th BACG annual conference

Visual habit: A tool for energy based prediction of crystal habits.

IRIS explorer for multiphysics applications (2008)
Presentation / Conference Contribution
Soufian, M., & Walton, J. (2008). IRIS explorer for multiphysics applications. In Multiphysics 2008

IRIS explorer for multiphysics applications.

High performance computing and parallel multiphysics (2008)
Presentation / Conference Contribution
Soufian, M., & Chakkera, V. (2008). High performance computing and parallel multiphysics. In Multiphysics 2008

High performance computing and parallel multiphysics

Morphological prediction of the polymorphic forms of para amino-benzoic acid based on internal crystallographic structure and crystallisation environment (2013)
Presentation / Conference Contribution
Rosbottom, I., Roberts, K. J., Hammond, R. B., & Soufian, M. (2013). Morphological prediction of the polymorphic forms of para amino-benzoic acid based on internal crystallographic structure and crystallisation environment. In 17th International Conferen

Morphological prediction of the polymorphic forms of para amino-benzoic acid based on internal crystallographic structure and crystallisation environment.