Investigating the influence of inherent soil fabrics on reliquefaction resistance of sands using DEM-clump simulation

S Yang, D Huang - Computers and Geotechnics, 2023 - Elsevier
Inherent fabrics exist in natural soils during deposition. After applying stresses, inherent
fabrics in soils are altered due to the rearrangement of soil particles, which gives rise to …

Fabric evolution and liquefaction resistance in multiple-liquefaction process: a micromechanical study using DEM-clump

S Yang, D Huang - Acta Geotechnica, 2022 - Springer
Recent earthquake case histories in Japan and New Zealand revealed that soil sites can
experience liquefaction multiple times under a sequence of earthquake shaking. Field …

Parallel implementation of LS-DEM with hybrid MPI+ OpenMP

P Tan, N Sitar - Computers and Geotechnics, 2024 - Elsevier
The discrete element method (DEM) is ideally suited for the study of mechanical behavior of
particulate media. While serial DEM codes can readily handle models containing thousands …

9th Ishihara lecture: Effects of subsurface heterogeneity on liquefaction-induced ground deformation during earthquakes

RW Boulanger, P Bassal - Soil Dynamics and Earthquake Engineering, 2024 - Elsevier
The effects of subsurface heterogeneity on liquefaction phenomena during earthquakes are
discussed using case histories and nonlinear dynamic analyses with different subsurface …

XRCT image processing for sand fabric reconstruction

P Tan, HS Wijesuriya, N Sitar - Granular Matter, 2024 - Springer
We explore computationally efficient techniques to improve the XRCT image processing of
low resolution and very noisy images for use in reconstruction of the fabric of densely …

[PDF][PDF] Multi-scale calibration of a line-style sand pluviator

Y Yang, DA de Lange, H Wang… - Geomechanics and …, 2024 - researchgate.net
A newly developed line-style sand pluviator has been calibrated to prepare repeatable sand
specimens of specific statuses of compactness and homogeneity for laboratory tests. Sand is …

9th Ishihara lecture: Effects of subsurface heterogeneity on liquefaction-induced ground deformatio4n during earthquakes

RW Boulanger, P Bassal - Japanese Geotechnical Society Special …, 2024 - jstage.jst.go.jp
The effects of subsurface heterogeneity on liquefaction phenomena during earthquakes are
discussed using case histories and nonlinear dynamic analyses with different subsurface …

[HTML][HTML] The 9th Victor de Mello lecture: reflections and speculations

DW Hight - Soils and Rocks, 2024 - SciELO Brasil
The paper reviews the published literature on some aspects of fabric and particle behaviour
in cohesionless soils. It uses insights from Discrete Element Modelling and Microcomputed …

[PDF][PDF] Back analysis of PISA pile tests at Dunkirk using a practical Nor-Sand model

M Selby, H Zhou, T Liu… - … of the 9th …, 2023 - research-information.bris.ac.uk
It is typically challenging to model numerically soil-structure interaction problems in sandy
soils with high accuracy. Difficulties include employing competent but practical soil …

Evaluation of an Experimental-Numerical Workflow for Analysis of Shear Zone Development in Clean Sands

FE Garcia, JE Andrade - Geo-Congress 2023 - ascelibrary.org
The importance of shear rupture in large-scale deformations of granular materials makes it a
popular subject of many physical experiments supplemented by numerical analyses. Quite …