Effect of particle morphology and contacts on particle breakage in a granular assembly studied using X-ray tomography

Z Karatza, E Andò, SA Papanicolopulos, G Viggiani… - Granular Matter, 2019 - Springer
The macroscopic response of a geomaterial is entirely determined by changes at the particle
scale. It has been established that particle crushing is affected by particle size, shape and …

In situ grain fracture mechanics during uniaxial compaction of granular solids

RC Hurley, J Lind, DC Pagan, MC Akin… - Journal of the Mechanics …, 2018 - Elsevier
Grain fracture and crushing are known to influence the macroscopic mechanical behavior of
granular materials and be influenced by factors such as grain composition, morphology, and …

Effect of particle characteristics on the evolution of particle size, particle morphology, and fabric of sands loaded under uniaxial compression

E Ganju, M Kılıç, M Prezzi, R Salgado, N Parab… - Acta Geotechnica, 2021 - Springer
This paper presents the results and analyses of uniaxial compression experiments
performed on three silica sands. The sands have comparable particle-size distributions, but …

DEM modelling of sequential fragmentation of zeolite granules under oedometric compression based on XCT observations

P Wang, Z Karatza, C Arson - Powder Technology, 2019 - Elsevier
The objective of our research is to define a new Discrete Element Method (DEM) that can
describe the processes involved in particle breakage and the resulting macroscopic …

Image-based numerical study of three-dimensional meso-structure effects on damage and failure of heterogeneous coal-rock under dynamic impact loads

K Zheng, B Qiu, Z Wang, X Li, J Li, K Gao - Particuology, 2020 - Elsevier
This paper proposes a numerical three-dimensional (3D) mesoscopic approach based on
the discrete element method combined with X-ray computed tomography (XCT) images to …

Effect of Particle Breakage of Sand Under High Oedometric Stress on its Microstructural Properties Using 3D X-ray Micro-tomography

SE Messioud, A Dadda, S Feia, R Elandaloussi… - Indian Geotechnical …, 2024 - Springer
Particle breakage in a granular material alters its microstructural properties, which changes
its properties on the macroscopic and microscopic scale. In the present work, an …

Contact orientation distributions for visualisation of granular fabric

G He, Z Karatza, SA Papanicolopulos - Granular Matter, 2022 - Springer
Contact orientation distributions are widely used to describe the fabric of granular
assemblies and its evolution under load. Different types of visualisations, mainly histograms …

Study of cone penetration in silica sands using Digital Image Correlation (DIC) analysis and X-ray computed tomography (XCT)

E Ganju - 2021 - search.proquest.com
Cone penetration in sands is a complex process: it contains several challenges that
geomechanicians face, such as large displacements, large strains, strain localization, and …

[PDF][PDF] Reconstructions 3D tissulaires basées sur le métabolisme sous-jacent exploré en spectroscopie par résonance magnétique multi-noyaux

S Gerbaud - 2023 - theses.fr
Dans le cadre de l'informatique graphique (IG), la modélisation 3D est une technique pour
représenter des objets en trois dimensions, c'est-à-dire avec une hauteur, une largeur et …

Influence of Particle-Scale Properties on Fracture Behavior of Silica Sand

S Amirrahmat, KA Alshibli - International Journal of Geomechanics, 2021 - ascelibrary.org
The distribution of stresses within individual granular particles subjected to one-dimensional
(1D) confined compression is affected by various particle-scale properties, such as …