Grain breakage under uniaxial compression, through 3D DEM modelling

A breakable grain model is presented, using the concept of particles assembly. Grains of polyhedral shapes are generated, formed by joining together tetrahedral subgrains using cohesive bonds. Single grain crushing simulations are performed for multiple values of the intra-granular cohesion to study...

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Main Authors: Nader François, Silvani Claire, Djeran-Maigre Irini
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201714007005
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author Nader François
Silvani Claire
Djeran-Maigre Irini
author_facet Nader François
Silvani Claire
Djeran-Maigre Irini
author_sort Nader François
collection DOAJ
description A breakable grain model is presented, using the concept of particles assembly. Grains of polyhedral shapes are generated, formed by joining together tetrahedral subgrains using cohesive bonds. Single grain crushing simulations are performed for multiple values of the intra-granular cohesion to study the effect on the grain’s strength. The same effect of intra-granular cohesion is studied under oedometric compression on samples of around 800 grains, which allows the evaluation of grain breakage model on the macroscopic behaviour. Grain size distribution curves and grain breakage ratios are monitored throughout the simulations.
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spelling doaj.art-7211816edd4b4d40aa6b9be4932c02312022-12-21T20:02:07ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011400700510.1051/epjconf/201714007005epjconf162001Grain breakage under uniaxial compression, through 3D DEM modellingNader François0Silvani Claire1Djeran-Maigre Irini2Univ Lyon, INSA-Lyon, SMS-IDUniv Lyon, INSA-Lyon, SMS-IDUniv Lyon, INSA-Lyon, SMS-IDA breakable grain model is presented, using the concept of particles assembly. Grains of polyhedral shapes are generated, formed by joining together tetrahedral subgrains using cohesive bonds. Single grain crushing simulations are performed for multiple values of the intra-granular cohesion to study the effect on the grain’s strength. The same effect of intra-granular cohesion is studied under oedometric compression on samples of around 800 grains, which allows the evaluation of grain breakage model on the macroscopic behaviour. Grain size distribution curves and grain breakage ratios are monitored throughout the simulations.https://doi.org/10.1051/epjconf/201714007005
spellingShingle Nader François
Silvani Claire
Djeran-Maigre Irini
Grain breakage under uniaxial compression, through 3D DEM modelling
EPJ Web of Conferences
title Grain breakage under uniaxial compression, through 3D DEM modelling
title_full Grain breakage under uniaxial compression, through 3D DEM modelling
title_fullStr Grain breakage under uniaxial compression, through 3D DEM modelling
title_full_unstemmed Grain breakage under uniaxial compression, through 3D DEM modelling
title_short Grain breakage under uniaxial compression, through 3D DEM modelling
title_sort grain breakage under uniaxial compression through 3d dem modelling
url https://doi.org/10.1051/epjconf/201714007005
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