A comprehensive numerical investigation of multi-scale particle shape effects on small-strain stiffness of sands

JY Nie, Y Cui, G Wang, R Wang, N Zhang… - …, 2024 - icevirtuallibrary.com
The effects of multi-scale particle shape characteristics on the small-strain stiffness of
granular soils remain controversial. This study revisits this topic using well-calibrated three …

Influence of particle size distribution on the proportion of stress-transmitting particles and implications for measures of soil state

D Liu, C O'Sullivan, JAH Carraro - Journal of Geotechnical and …, 2021 - ascelibrary.org
It is generally accepted that the use of void ratio and bulk density as measures of soil state
have limitations in the case of gap-graded soils because the finer grains may not transmit …

DEM study of the effect of fines content on the small-strain stiffness of gap-graded soils

J Gong, X Wang, L Li, Z Nie - Computers and Geotechnics, 2019 - Elsevier
This letter examines the effect of fines content on the small-strain stiffness (G 0) of gap-
graded soils via the discrete element method (DEM). The G 0 values were obtained by DEM …

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 …

Anisotropy of elastic wave velocity influenced by particle shape and fabric anisotropy under K0 condition

M Otsubo, J Liu, Y Kawaguchi, TT Dutta… - Computers and …, 2020 - Elsevier
Non-cohesive granular materials exhibit fabric-induced anisotropy of small-strain stiffness.
The stiffness anisotropy is often measured using dynamic wave measurements in the …

Maximum shear modulus anisotropy of rooted soils

AA Karimzadeh, AK Leung, Z Gao - Géotechnique, 2024 - icevirtuallibrary.com
The maximum shear modulus (G 0 (ij)) of rooted soils is crucial for assessing the
deformation and liquefaction potential of vegetated infrastructures under seismic loading …

DEM analysis on the stress wave response of spherical particle assemblies under triaxial compression

Y Li, M Otsubo, R Kuwano - Computers and Geotechnics, 2021 - Elsevier
It is challenging to understand the stress wave response of cohesionless particle assemblies
including compression and shear wave velocities (V p and V s) due to complicated particle …

[PDF][PDF] Advanced laboratory testing for offshore pile foundations under monotonic and cyclic loading

T Liu - 2019 - core.ac.uk
Laboratory experimental research is described that supported the PISA Joint Industry
monopile design project and a smaller scale international investigation into the ageing …

Analysis of direct shear test of incineration slag reinforced with waste tire strips by discrete element method

Q Ma, H Shu, H Xiao, Y Liu - Construction and Building Materials, 2023 - Elsevier
The mechanical properties of incineration slag and waste tire reinforced incineration slag
(RIS) were investigated by a series of large direct shear tests. The results show that the …

An innovative method to simulate stress-induced velocity changes in anisotropic rocks

Q Bai, H Konietzky - Géotechnique Letters, 2021 - icevirtuallibrary.com
This contribution proposes a numerical microstructural modelling approach to investigate
stress-induced seismic velocity changes on anisotropic rocks. By introducing pre-existing …