All Outputs (5)

Using grain size distribution to estimate permeability (2023)
Presentation / Conference Contribution
Imre, E., Bálint, Á., Houng, D. T. Q., López, L. L., Répássy, L., Mwinken, D. K., Illés, Z., Datcheva, M., Baille, W., Barreto, D., Leak, J., & Feng, S. (2024, August). Using grain size distribution to estimate permeability. Presented at XVIII Europ

This study examines the saturated water permeability using samples of loose and dense 2-fraction coarse sand mixtures. Besides the non-normalised entropy variables some additional parameters like density, diameter descriptors are used to characterize... Read More about Using grain size distribution to estimate permeability.

Particle size distribution induced fabric effects on the onset and post liquefaction behaviours of soils (2023)
Presentation / Conference Contribution
Leak, J., & Barreto, D. (in press). Particle size distribution induced fabric effects on the onset and post liquefaction behaviours of soils. In Proceedings of the XVIII ECSMGE 2024

Liquefaction in soils is a detrimental phenomenon. Microscale behaviours and their influence on the macroscale response during and after the onset of liquefaction are not well understood. In particular, how contact behaviours effect macroscale proper... Read More about Particle size distribution induced fabric effects on the onset and post liquefaction behaviours of soils.

A DEM study on the effect of inherent variability of assemblies of spherical particles (2023)
Presentation / Conference Contribution
Leak, J., & Barreto, D. (2023). A DEM study on the effect of inherent variability of assemblies of spherical particles. In Proceedings 10th NUMGE 2023: 10th European Conference on Numerical Methods in Geotechnical Engineering. https://doi.org/10.53243/NU

This study presents DEM simulations of assemblies of spheres using periodic boundaries to assess the effect of inherent sample variability. DEM specimens with different particle size distributions (PSDs) were randomly generated, and then isotropicall... Read More about A DEM study on the effect of inherent variability of assemblies of spherical particles.

Numerical Experimental Investigations Into Force Chain Networks In Soils: A Grading Entropy Approach (2023)
Presentation / Conference Contribution
Leak, J., Barreto, D., & Imre, E. (2023, May). Numerical Experimental Investigations Into Force Chain Networks In Soils: A Grading Entropy Approach. Paper presented at Numerical Analysis of Geomaterials Conference (NANGE), Assisi, Italy

These slides were presented at the numerical analysis of geomaterials conference in Assisi in 2023. They detail an experimental and numerical investigation into the effect of particle size distribution (PSD) on soil fabric. Grading entropy was used t... Read More about Numerical Experimental Investigations Into Force Chain Networks In Soils: A Grading Entropy Approach.

Rubber-soil mixtures: use of grading entropy theory to evaluate stiffness and liquefaction susceptibility (2023)
Journal Article
Bernal-Sanchez, J., Barreto, D., & Leak, J. (2023). Rubber-soil mixtures: use of grading entropy theory to evaluate stiffness and liquefaction susceptibility. Bulletin of Earthquake Engineering, 21, 3777–3796. https://doi.org/10.1007/s10518-023-01673-3

Rubber-soil mixtures are known to have mechanical properties that enable their use in backfills, road construction or geotechnical seismic isolation systems. The complexity of these mixtures comes from adding soft (i.e. rubber) particles that increas... Read More about Rubber-soil mixtures: use of grading entropy theory to evaluate stiffness and liquefaction susceptibility.