A fracture-based discrete model for simulating creep in quartz sands

Creep of granular soils is frequently accompanied by grain breakage. Stress corrosion driven grain breakage offers a micromechanically based explanation for granular creep. This study incorporates that concept into a new model based on the discrete element method (DEM) to simulate creep in sands. Th...

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Detalles Bibliográficos
Autores: Lei, Jiangtao|||0000-0001-9458-725X, Arroyo Álvarez de Toledo, Marcos|||0000-0001-9384-9107, Ciantia, Matteo Oryem|||0000-0003-1897-4471, Zhang, Ningning
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/413396
Acceso en línea:https://hdl.handle.net/2117/413396
https://dx.doi.org/10.1680/jgeot.23.00068
Access Level:acceso abierto
Palabra clave:Soil mechanics
Cracks & cracking
Creep
Discrete-element modelling
Particle crushing
Time dependence
Mecànica dels sòls
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
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oai_identifier_str oai:upcommons.upc.edu:2117/413396
network_acronym_str ES
network_name_str España
repository_id_str
spelling A fracture-based discrete model for simulating creep in quartz sandsLei, Jiangtao|||0000-0001-9458-725XArroyo Álvarez de Toledo, Marcos|||0000-0001-9384-9107Ciantia, Matteo Oryem|||0000-0003-1897-4471Zhang, NingningSoil mechanicsCracks & crackingCreepDiscrete-element modellingParticle crushingTime dependenceMecànica dels sòlsÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòlsCreep of granular soils is frequently accompanied by grain breakage. Stress corrosion driven grain breakage offers a micromechanically based explanation for granular creep. This study incorporates that concept into a new model based on the discrete element method (DEM) to simulate creep in sands. The model aims for conceptual simplicity, computational efficiency and ease of calibration. To this end a new form of normalized Charles power law is incorporated into a DEM model for rough-crushable sands based on the particle splitting technique. The model is implemented using a controlled on-off computational strategy. The model is validated by simulating creep in quartz sands in oedometric and triaxial conditions. Model predictions are shown to compare favourably with experimental results in terms of creep strain, creep strain rates and particle breakage. The model proposed would facilitate the calibration of phenomenological continuum models, but may be also useful to directly investigate structural scale phenomena, such as pile ageing.Spanish Research Agency support (AEI) through research project PID2020-119598RB-I00 is also acknowledged.Peer Reviewed20252025-03-0120242024-08-27journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/413396https://dx.doi.org/10.1680/jgeot.23.00068reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengAgencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-119598RB-I00 PRINCIPIOS Y APLICACIONES DE LA MECANICA DEL SUELO PARA ANCLAJE DE INSTALACIONES MARINAS DE ENERGIAS RENOVABLESopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4133962026-05-27T15:37:01Z
dc.title.none.fl_str_mv A fracture-based discrete model for simulating creep in quartz sands
title A fracture-based discrete model for simulating creep in quartz sands
spellingShingle A fracture-based discrete model for simulating creep in quartz sands
Lei, Jiangtao|||0000-0001-9458-725X
Soil mechanics
Cracks & cracking
Creep
Discrete-element modelling
Particle crushing
Time dependence
Mecànica dels sòls
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
title_short A fracture-based discrete model for simulating creep in quartz sands
title_full A fracture-based discrete model for simulating creep in quartz sands
title_fullStr A fracture-based discrete model for simulating creep in quartz sands
title_full_unstemmed A fracture-based discrete model for simulating creep in quartz sands
title_sort A fracture-based discrete model for simulating creep in quartz sands
dc.creator.none.fl_str_mv Lei, Jiangtao|||0000-0001-9458-725X
Arroyo Álvarez de Toledo, Marcos|||0000-0001-9384-9107
Ciantia, Matteo Oryem|||0000-0003-1897-4471
Zhang, Ningning
author Lei, Jiangtao|||0000-0001-9458-725X
author_facet Lei, Jiangtao|||0000-0001-9458-725X
Arroyo Álvarez de Toledo, Marcos|||0000-0001-9384-9107
Ciantia, Matteo Oryem|||0000-0003-1897-4471
Zhang, Ningning
author_role author
author2 Arroyo Álvarez de Toledo, Marcos|||0000-0001-9384-9107
Ciantia, Matteo Oryem|||0000-0003-1897-4471
Zhang, Ningning
author2_role author
author
author
dc.subject.none.fl_str_mv Soil mechanics
Cracks & cracking
Creep
Discrete-element modelling
Particle crushing
Time dependence
Mecànica dels sòls
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
topic Soil mechanics
Cracks & cracking
Creep
Discrete-element modelling
Particle crushing
Time dependence
Mecànica dels sòls
Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
description Creep of granular soils is frequently accompanied by grain breakage. Stress corrosion driven grain breakage offers a micromechanically based explanation for granular creep. This study incorporates that concept into a new model based on the discrete element method (DEM) to simulate creep in sands. The model aims for conceptual simplicity, computational efficiency and ease of calibration. To this end a new form of normalized Charles power law is incorporated into a DEM model for rough-crushable sands based on the particle splitting technique. The model is implemented using a controlled on-off computational strategy. The model is validated by simulating creep in quartz sands in oedometric and triaxial conditions. Model predictions are shown to compare favourably with experimental results in terms of creep strain, creep strain rates and particle breakage. The model proposed would facilitate the calibration of phenomenological continuum models, but may be also useful to directly investigate structural scale phenomena, such as pile ageing.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-08-27
2025
2025-03-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/413396
https://dx.doi.org/10.1680/jgeot.23.00068
url https://hdl.handle.net/2117/413396
https://dx.doi.org/10.1680/jgeot.23.00068
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación http://doi.org/10.13039/501100011033 Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020 PID2020-119598RB-I00 PRINCIPIOS Y APLICACIONES DE LA MECANICA DEL SUELO PARA ANCLAJE DE INSTALACIONES MARINAS DE ENERGIAS RENOVABLES
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,198674

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