The calibration of dem parameters for the bulk modelling of cohesive materials

CJ Coetzee, OC Scheffler - Processes, 2022 - mdpi.com
Granular materials are abundant in nature, and in most industries, either the initial
constituents or final products are in granular form during a production or processing stage …

Additive rheology of complex granular flows

TT Vo, S Nezamabadi, P Mutabaruka… - Nature …, 2020 - nature.com
Granular flows are omnipresent in nature and industrial processes, but their rheological
properties such as apparent friction and packing fraction are still elusive when inertial …

DEM calibration for simulating bulk cohesive materials

OC Scheffler, C Coetzee - Computers and Geotechnics, 2023 - Elsevier
Abstract The Discrete Element Method (DEM) has the prospect of accurately modelling the
bulk flows of cohesive materials if the cohesive input parameters are reliably calibrated …

Rheology and microstructure of unsaturated wet granular materials: Experiments and simulations

M Badetti, A Fall, D Hautemayou, F Chevoir… - Journal of …, 2018 - pubs.aip.org
When dealing with unsaturated wet granular materials, a fundamental question is: What is
the effect of capillary cohesion on the bulk flow and yield behavior? We investigate the …

Influence of contact parameters on Discrete Element method (DEM) simulations of flow from a hopper: Comparison with magnetic resonance imaging (MRI) …

M Danczyk, T Meaclem, M Mehdizad, D Clarke… - Powder technology, 2020 - Elsevier
Here the effect of contact properties on discrete element method (DEM) simulations of dry
granular flow was investigated. The particle contact properties were first measured using …

[HTML][HTML] Calibrating friction coefficients in discrete element method simulations with shear-cell experiments

A Angus, LAA Yahia, R Maione, M Khala, C Hare… - Powder Technology, 2020 - Elsevier
Abstract Discrete Element Method (DEM) simulations coupled with shear cell experimental
results have been used to investigate the flow behaviour of a dry particle assembly of glass …

Numerical analysis of capillary bridges and coalescence in a triplet of spheres

M Miot, G Veylon, A Wautier, P Philippe, F Nicot… - Granular Matter, 2021 - Springer
The behavior of a natural soil is known to change substantially in presence of water under
unsaturated conditions, due to additional capillary forces. Water can be absorbed by …

Rheology and granular texture of viscoinertial simple shear flows

TT Vo - Journal of Rheology, 2020 - pubs.aip.org
By means of extensive particle dynamics simulations in a three-dimensional model, we
analyze the rheology and granular texture in the steady-state of the viscoinertial granular …

Cohesive granular columns collapsing: Numerics questioning failure, cohesion, and friction

L Staron, L Duchemin, PY Lagrée - Journal of Rheology, 2023 - pubs.aip.org
Simulations of the failure of cohesive granular steps with varying intensities of the contact
adhesive force are presented. The simulations are compared with experimental and …

The roles of the reversibility and irreversibility of capillary bonds on the impact dynamics of agglomerates

TT Vo, TK Nguyen - Acta Geotechnica, 2023 - Springer
Wet agglomerates such as iron-ores, tablets, and aggregates are omnipresent in multi–field
industries. However, our understanding of the impact dynamics of these materials is limited …