Anisotropy in volume change behaviour of soils during shrinkage

PN Mishra, Y Zhang, MH Bhuyan, A Scheuermann - Acta Geotechnica, 2020 - Springer
It has been long recognised that some of the fundamental and engineering properties of
soils exhibit a certain degree of anisotropy that eventually dictates their directional …

Fabric and effective stress distribution in internally unstable soils

T Shire, C O'sullivan, KJ Hanley… - Journal of geotechnical …, 2014 - ascelibrary.org
Internal instability is a form of internal erosion in broadly graded cohesionless soils in which
fine particles can be eroded at lower hydraulic gradients than predicted by classical theory …

Quantifying the evolution of soil fabric during shearing using directional parameters

J Fonseca, C O'sullivan, MR COOP, PD Lee - Géotechnique, 2013 - icevirtuallibrary.com
Over the past 50 years, experimental studies have repeatedly demonstrated that the
mechanical behaviour of sand is sensitive to the material fabric, that is, the arrangement of …

Hypoplastic modeling of inherent anisotropy in normally and overconsolidated clays

YQ He, HJ Liao, W Wu, S Wang - Acta Geotechnica, 2023 - Springer
Inherent anisotropy is often observed in natural clays. This paper presents a hypoplastic
constitutive model to describe the inherent anisotropy of normally and overconsolidated …

A CFD–DEM study on the suffusion and shear behaviors of gap-graded soils under stress anisotropy

Z Hu, JZ Li, YD Zhang, ZX Yang, JK Liu - Acta Geotechnica, 2023 - Springer
This study investigates the evolution of suffusion and mechanical behaviors of gap-graded
soils under anisotropic stress conditions. The interactions between granular assembly and …

Microstructure evolution of granular soils in cyclic mobility and post-liquefaction process

G Wang, J Wei - Granular Matter, 2016 - Springer
Understanding the evolution of microstructure in granular soils can provide significant
insights into constitutive modeling of soil liquefaction. In this study, micromechanical …

Suffusion-induced evolution of mechanical and microstructural properties of gap-graded soils using CFD-DEM

Z Hu, Y Zhang, Z Yang - Journal of geotechnical and …, 2020 - ascelibrary.org
As a typical form of internal erosion, suffusion refers to the detachment and migration of fine
particles through voids among coarse particles driven by seepage flow. This paper studies …

Quantifying fabric anisotropy of granular materials using wave velocity anisotropy: a numerical investigation

X Gu, X Liang, J Hu - Géotechnique, 2023 - icevirtuallibrary.com
Fabric anisotropy is a sought-after micro index to correlate macro mechanical responses of
granular materials. In this work, the discrete-element method is utilised to simulate multi …

Mechanism of the variation in axial strain of sand subjected to undrained cyclic triaxial loading explained by DEM with non-spherical particles

X Ni, J Ma, F Zhang - Computers and Geotechnics, 2024 - Elsevier
The mechanical response of sand is affected by the axial strain accumulated during
undrained cyclic triaxial loading tests. However, the large deformation that occurs during the …

Quantifying Shear-Induced Permeability Changes in Medium-Loose Sands

J Salomon, T Morimoto, F Patino-Ramirez… - … of Geotechnical and …, 2024 - ascelibrary.org
For many applications in geotechnical engineering, an accurate assessment of soil
hydraulic conductivity is important to predict settlements and pore water pressure changes …