An approach to enhance efficiency of DEM modelling of soils with crushable grains

MO Ciantia, M Arroyo, F Calvetti, A Gens - Géotechnique, 2015 - icevirtuallibrary.com
In this study oedometric compression tests of hydrocarbon coke, Fontainebleau sand and
silica sand are simulated in three dimensions using breakable particles. The method adapts …

DEM modelling of cone penetration tests in a double-porosity crushable granular material

MO Ciantia, M Arroyo, J Butlanska, A Gens - Computers and Geotechnics, 2016 - Elsevier
A three-dimensional discrete element model is used to investigate the effect of grain
crushing on the tip resistance measured by cone penetration tests (CPT) in calibration …

DEM assessment of impact forces of dry granular masses on rigid barriers

F Calvetti, CG Di Prisco, E Vairaktaris - Acta Geotechnica, 2017 - Springer
In the design of sheltering structures/embankments for the mitigation of the risk due to rapid
and long spreading landslides, a crucial role is generally played by the assessment of the …

Microscopic mechanism and analytical modeling of seepage-induced erosion in bimodal soils

X Wang, B Huang, Y Tang, T Hu, D Ling - Computers and Geotechnics, 2022 - Elsevier
This paper investigates the seepage-induced erosion by conducting a series of discrete
element method simulations on the bimodal soils with gap ratio (G) range from 2 to 6 and …

A perspective on calibration and application of DEM models for simulation of industrial bulk powder processes

W Ketterhagen, C Wassgren - Powder Technology, 2022 - Elsevier
In recent years, there has been increased focus on the calibration of discrete element
method (DEM) models to gain improved confidence in the simulation predictions. However …

CFD-DEM model to assess stress-induced anisotropy in undrained granular material

T Foroutan, AA Mirghasemi - Computers and Geotechnics, 2020 - Elsevier
This paper presents CFD-DEM simulations of undrained true triaxial tests on a granular soil.
A CFDEM solver that considers compressible fluid and moving meshes has been developed …

3D DEM investigation of the resistance of ice and frozen granular soils

G Wang, F Calvetti - European Journal of Environmental and Civil …, 2022 - Taylor & Francis
Frozen soils are mixtures of ice and solid grains. Since the mechanical properties of ice and
dry granular soils are completely different, the behaviour of the ice-soil mixture is highly …

Micromechanical modelling of erosion due to evaporation in a partially wet granular slope

F Gabrieli, P Lambert, S Cola… - International journal for …, 2012 - Wiley Online Library
Small quantities of water in a granular slope increase the overall stability and justify the
large slope angle which is sometime observable in nature. However, the evaporation …

[HTML][HTML] Effect of particle roughness on the bulk deformation using coupled boundary element and discrete element methods

S Nadimi, A Ghanbarzadeh, A Neville… - Computational Particle …, 2020 - Springer
Particles slide and roll on each other when a granular medium is sheared. Consequently,
the tribological properties, such as inter-particle friction and adhesion, play a major role in …

Use of CFD-DEM to evaluate the effect of intermediate stress ratio on the undrained behaviour of granular materials

T Foroutan, AA Mirghasemi - Advanced Powder Technology, 2022 - Elsevier
This study investigates the effect of intermediate stress ratio (b) on the mechanical behaviour
of granular soil in true triaxial tests. A CFD-DEM solver with the ability to model compressible …