Experimental and numerical study on the fragmentation mechanism of a single calcareous sand particle under normal compression

D Kuang, Z Long, R Guo, T Zhao, K Wu - Bulletin of Engineering Geology …, 2021 - Springer
The rate-dependent mechanical properties of a specific geomaterial play a crucial role in
engineering design and application. However, there have been very few studies involving …

Study of shear behavior of granular materials by 3D DEM simulation of the triaxial test in the membrane boundary condition

K Wu, W Sun, S Liu, X Zhang - Advanced Powder Technology, 2021 - Elsevier
This paper studies the shear behavior of granular materials by using a three-dimensional
(3D) discrete element method (DEM) simulation of the triaxial test. The experimental triaxial …

DEM study of the shear behavior and formation of shear band in biaxial test

K Wu, S Liu, W Sun, S Rémond - Advanced Powder Technology, 2020 - Elsevier
This paper aims to study the shear behavior of granular matter by DEM simulations.
Granular samples are prepared by automatic clump generation algorithm to create particles …

DEM analysis of the flow and friction of spherical particles in steel silos with corrugated walls

E Gallego, JM Fuentes, J Wiącek, JR Villar, F Ayuga - Powder Technology, 2019 - Elsevier
Steel silos with corrugated walls are widely used because they allow an increase of the wall
buckling resistance, but corrugations affect the material flow and the forces applied over the …

DEM simulation of drained triaxial tests for glass-beads

L Hazzar, M Nuth, M Chekired - Powder Technology, 2020 - Elsevier
The triaxial compression test is the most common laboratory test used to measure the
shearing mechanical properties of granular soils. In this paper, a series of numerical drained …

Contact force network evolution in active earth pressure state of granular materials: photo-elastic tests and DEM

D Leśniewska, M Nitka, J Tejchman, M Pietrzak - Granular Matter, 2020 - Springer
The paper deals with a quasi-static behaviour of cohesion-less granular material in active
earth pressure state. Photo-elastic model tests on a rigid wall, translating out of the granular …

Morphological insights into the liquefaction and post-liquefaction response of sands with geotextile inclusions using drained constant volume simple shear tests

B Lakkimsetti, GM Latha - Geotextiles and Geomembranes, 2023 - Elsevier
The present study aims to explore and bring out morphological insights into the prior-
liquefaction, liquefaction, and post-liquefaction response of sands with geotextile inclusions …

Calibration of DEM-FEM model parameters for traction performance analysis of an off-road tire on gravel terrain

H Zeng, W Xu, M Zang, P Yang - Powder Technology, 2020 - Elsevier
This work aims to determine a complete set of input parameters of the DEM-FEM coupling
model, which ensures us obtain more realistic simulation results of the tire-terrain …

Study of the shear behavior of binary granular materials by DEM simulations and experimental triaxial tests

K Wu, S Rémond, NE Abriak, P Pizette… - Advanced Powder …, 2017 - Elsevier
This paper aims at studying the shear behavior of mixtures of fine and coarse particles by
classical triaxial tests. The work is performed both on experimental tests and computer …

Investigation on instability modes of sand under biaxial shearing accounting various specimen generation techniques in DEM

MS Negi, M Mukherjee - Advanced Powder Technology, 2023 - Elsevier
Instabilities in granular material usually initiate at the microscale due to the presence of
internal heterogeneity arising from variation in the particle packing arrangement. The …