The influence of particle-size distribution on critical state behavior of spherical and non-spherical particle assemblies
Journal Article
Jiang, M. D., Yang, Z. X., Barreto, D., & Xie, Y. H. (2018)
The influence of particle-size distribution on critical state behavior of spherical and non-spherical particle assemblies. Granular Matter, 20(80), doi:10.1007/s10035-018-0850-x
This paper presents an investigation into the effects of particle-size distribution on the critical state behavior of granular materials using Discrete Element Method (DEM) si...
Evolution of soil fabric and its interpretation using different methods.
Presentation / Conference
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, UCL, London
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-dimensi...
The influence of particle geometry and the intermediate stress ratio on the shear behavior of granular materials
Journal Article
Xie, Y. H., Yang, Z. X., Barreto, D., & Jiang, M. D. (2017)
The influence of particle geometry and the intermediate stress ratio on the shear behavior of granular materials. Granular Matter, 19(2), 34-48. https://doi.org/10.1007/s10035-017-0723-8
The behavior of granular materials is very complex in nature and depends on particle shape, stress path, fabric, density, particle size distribution, amongst others. This pape...
Particle loss and volume change on dissolution: experimental results and analysis of particle size and amount effects
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 comp...
Micromechanical insight into the undrained instability of granular materials: deformation characteristics of geomaterials.
Conference Proceeding
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.), Deformation Characteristics of Geomaterials (655-662). https://doi.org/10.3233/978-1-61499-601-9-655
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 press...
Quantifying stress-induced anisotropy using inter-void constrictions
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 owin...
Dynamic Behaviour of a Geotechnical Seismic Isolation System with Rubber-Sand Mixtures to Enhance Seismic Protection
Conference Proceeding
Bernal-Sanchez, J., McDougall, J., Miranda-Manzanares, M., & Barreto, D. (2022)
Dynamic Behaviour of a Geotechnical Seismic Isolation System with Rubber-Sand Mixtures to Enhance Seismic Protection. In Proceedings of the 3rd European Conference on Earthquake Engineering & Seismology (2674-2683
A Geotechnical Seismic Isolation (GSI) system is proposed in this study based on the use of Rubber-Soil mixtures (RSm) to facilitate the benefits of dynamic soil-foundation st...
The influence of inter-particle friction and the intermediate stress ratio on soil response under generalised stress conditions
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 int...
New method for rock qualification
Conference Proceeding
János, L., Emőke, I., Phong. Q, T., Miklós, G., László, K., István, T., …Guida, G. (2018)
New method for rock qualification. In Mérnökgeológia-Kőzetmechanika 2018 (263-274
A new method was elaborated to characterize the breakage properties of rocks. A crushing test was suggested and parallel tests were performed on sand-pairs with differen...
DEM simulations of granular materials involving principal stress rotation.
Presentation / Conference
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, Minneapolis, USA
No abstract available.