A poly‐superellipsoid‐based approach on particle morphology for DEM modeling of granular media
Particle morphology plays a key role in affecting physical and mechanical behaviors of
granular media. While various mathematical approaches and shape descriptors have been …
granular media. While various mathematical approaches and shape descriptors have been …
A coupled CFD‐DEM investigation of suffusion of gap graded soil: Coupling effect of confining pressure and fines content
Y Liu, L Wang, Y Hong, J Zhao… - International Journal for …, 2020 - Wiley Online Library
Suffusion involves fine particles migration within the matrix of coarse fraction under seepage
flow, which usually occurs in the gap‐graded material of dams and levees. Key factors …
flow, which usually occurs in the gap‐graded material of dams and levees. Key factors …
Micromechanics of root development in soil
Our understanding of how roots develop in soil may be at the eve of significant
transformations. The formidable expansion of imaging technologies enables live …
transformations. The formidable expansion of imaging technologies enables live …
Macroscopic softening in granular materials from a mesoscale perspective
Stress-oftening is one of the significant features experienced by cohesive-frictional granular
materials subjected to deviatoric loading. This paper focuses on mesoscopic evolutions of …
materials subjected to deviatoric loading. This paper focuses on mesoscopic evolutions of …
A nonlinear Lagrangian particle model for grains assemblies including grain relative rotations
We formulate a discrete Lagrangian model for a set of interacting grains, which is purely
elastic. The considered degrees of freedom for each grain include placement of barycenter …
elastic. The considered degrees of freedom for each grain include placement of barycenter …
A network-based investigation on the strong contact system of granular materials under isotropic and deviatoric stress states
The contact network is essential in linking the macroscale and microscale behaviors of
granular materials. Particles and contacts are equivalent to nodes and links in the framework …
granular materials. Particles and contacts are equivalent to nodes and links in the framework …
Sustainability of internal structures during shear band forming in 2D granular materials
The shear band issue in frictional granular materials has attracted many concerns and
perspectives at the micro-and meso-scale have been involved to analyze this problem. At …
perspectives at the micro-and meso-scale have been involved to analyze this problem. At …
Probabilistic calibration of discrete element simulations using the sequential quasi-Monte Carlo filter
The calibration of discrete element method (DEM) simulations is typically accomplished in a
trial-and-error manner. It generally lacks objectivity and is filled with uncertainties. To deal …
trial-and-error manner. It generally lacks objectivity and is filled with uncertainties. To deal …
Phase transition in monodisperse granular materials: How to model it by using a strain hardening visco‐elastic‐plastic constitutive relationship
P Marveggio, I Redaelli… - International Journal for …, 2022 - Wiley Online Library
During heating (loading characterised by a progressive increase in strain rate) and cooling
(loading characterised by a progressive decrease in strain rate) numerical tests, performed …
(loading characterised by a progressive decrease in strain rate) numerical tests, performed …
Development of extended STZ model for granular soils subjected to combined static loading and vibration
T Xie, P Guo, D Stolle - Géotechnique, 2022 - icevirtuallibrary.com
The 'shear-transformation zone'(STZ), which may be referred to as a weak domain in
granular material, is the main source of plastic deformations in non-cohesive soils such as …
granular material, is the main source of plastic deformations in non-cohesive soils such as …