Creep dynamics of athermal amorphous materials: A mesoscopic approach

Autores
Liu, Chen; Ferrero, Ezequiel E.; Martens, Kirsten; Barrat, Jean Louis
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Yield stress fluids display complex dynamics, in particular when driveninto the transient regime between the solid and the flowing state. Inspired by creep experiments on dense amorphous materials, we implement mesoscale elasto-plastic descriptions to analyze such transient dynamics in athermal systems. Both our mean-field and space-dependent approaches consistently reproduce the typical experimental strain rate responses to different applied steps in stress. Moreover, they allow us to understand basic processes involved in the strain rate slowing down (creep) and the strain rate acceleration (fluidization) phases. The fluidization time increases in a power-law fashion as the applied external stress approaches a static yield stress. This stress value is related to the stress over-shoot in shear start-up experiments, and it is known to depend on sample preparation and age. By calculating correlations of the accumulated plasticity in the spatially resolved model, we reveal different modes of cooperative motion during the creep dynamics.
Fil: Liu, Chen. Université Grenoble Alpes; Francia. Université Paris Sud; Francia
Fil: Ferrero, Ezequiel E.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martens, Kirsten. Université Grenoble Alpes; Francia
Fil: Barrat, Jean Louis. Université Grenoble Alpes; Francia
Materia
CREEP
AMORPHOUS SOLIDS
ELASTOPLASTIC MODELS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/98092
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Creep dynamics of athermal amorphous materials: A mesoscopic approachLiu, ChenFerrero, Ezequiel E.Martens, KirstenBarrat, Jean LouisCREEPAMORPHOUS SOLIDSELASTOPLASTIC MODELShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Yield stress fluids display complex dynamics, in particular when driveninto the transient regime between the solid and the flowing state. Inspired by creep experiments on dense amorphous materials, we implement mesoscale elasto-plastic descriptions to analyze such transient dynamics in athermal systems. Both our mean-field and space-dependent approaches consistently reproduce the typical experimental strain rate responses to different applied steps in stress. Moreover, they allow us to understand basic processes involved in the strain rate slowing down (creep) and the strain rate acceleration (fluidization) phases. The fluidization time increases in a power-law fashion as the applied external stress approaches a static yield stress. This stress value is related to the stress over-shoot in shear start-up experiments, and it is known to depend on sample preparation and age. By calculating correlations of the accumulated plasticity in the spatially resolved model, we reveal different modes of cooperative motion during the creep dynamics.Fil: Liu, Chen. Université Grenoble Alpes; Francia. Université Paris Sud; FranciaFil: Ferrero, Ezequiel E.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Martens, Kirsten. Université Grenoble Alpes; FranciaFil: Barrat, Jean Louis. Université Grenoble Alpes; FranciaRoyal Society of Chemistry2018-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98092Liu, Chen; Ferrero, Ezequiel E.; Martens, Kirsten; Barrat, Jean Louis; Creep dynamics of athermal amorphous materials: A mesoscopic approach; Royal Society of Chemistry; Soft Matter; 14; 41; 9-2018; 8306-83161744-683XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/C8SM01392Finfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/SM/C8SM01392Finfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1807.02497info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:55:31Zoai:ri.conicet.gov.ar:11336/98092instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:55:32.177CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Creep dynamics of athermal amorphous materials: A mesoscopic approach
title Creep dynamics of athermal amorphous materials: A mesoscopic approach
spellingShingle Creep dynamics of athermal amorphous materials: A mesoscopic approach
Liu, Chen
CREEP
AMORPHOUS SOLIDS
ELASTOPLASTIC MODELS
title_short Creep dynamics of athermal amorphous materials: A mesoscopic approach
title_full Creep dynamics of athermal amorphous materials: A mesoscopic approach
title_fullStr Creep dynamics of athermal amorphous materials: A mesoscopic approach
title_full_unstemmed Creep dynamics of athermal amorphous materials: A mesoscopic approach
title_sort Creep dynamics of athermal amorphous materials: A mesoscopic approach
dc.creator.none.fl_str_mv Liu, Chen
Ferrero, Ezequiel E.
Martens, Kirsten
Barrat, Jean Louis
author Liu, Chen
author_facet Liu, Chen
Ferrero, Ezequiel E.
Martens, Kirsten
Barrat, Jean Louis
author_role author
author2 Ferrero, Ezequiel E.
Martens, Kirsten
Barrat, Jean Louis
author2_role author
author
author
dc.subject.none.fl_str_mv CREEP
AMORPHOUS SOLIDS
ELASTOPLASTIC MODELS
topic CREEP
AMORPHOUS SOLIDS
ELASTOPLASTIC MODELS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Yield stress fluids display complex dynamics, in particular when driveninto the transient regime between the solid and the flowing state. Inspired by creep experiments on dense amorphous materials, we implement mesoscale elasto-plastic descriptions to analyze such transient dynamics in athermal systems. Both our mean-field and space-dependent approaches consistently reproduce the typical experimental strain rate responses to different applied steps in stress. Moreover, they allow us to understand basic processes involved in the strain rate slowing down (creep) and the strain rate acceleration (fluidization) phases. The fluidization time increases in a power-law fashion as the applied external stress approaches a static yield stress. This stress value is related to the stress over-shoot in shear start-up experiments, and it is known to depend on sample preparation and age. By calculating correlations of the accumulated plasticity in the spatially resolved model, we reveal different modes of cooperative motion during the creep dynamics.
Fil: Liu, Chen. Université Grenoble Alpes; Francia. Université Paris Sud; Francia
Fil: Ferrero, Ezequiel E.. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Martens, Kirsten. Université Grenoble Alpes; Francia
Fil: Barrat, Jean Louis. Université Grenoble Alpes; Francia
description Yield stress fluids display complex dynamics, in particular when driveninto the transient regime between the solid and the flowing state. Inspired by creep experiments on dense amorphous materials, we implement mesoscale elasto-plastic descriptions to analyze such transient dynamics in athermal systems. Both our mean-field and space-dependent approaches consistently reproduce the typical experimental strain rate responses to different applied steps in stress. Moreover, they allow us to understand basic processes involved in the strain rate slowing down (creep) and the strain rate acceleration (fluidization) phases. The fluidization time increases in a power-law fashion as the applied external stress approaches a static yield stress. This stress value is related to the stress over-shoot in shear start-up experiments, and it is known to depend on sample preparation and age. By calculating correlations of the accumulated plasticity in the spatially resolved model, we reveal different modes of cooperative motion during the creep dynamics.
publishDate 2018
dc.date.none.fl_str_mv 2018-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/98092
Liu, Chen; Ferrero, Ezequiel E.; Martens, Kirsten; Barrat, Jean Louis; Creep dynamics of athermal amorphous materials: A mesoscopic approach; Royal Society of Chemistry; Soft Matter; 14; 41; 9-2018; 8306-8316
1744-683X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98092
identifier_str_mv Liu, Chen; Ferrero, Ezequiel E.; Martens, Kirsten; Barrat, Jean Louis; Creep dynamics of athermal amorphous materials: A mesoscopic approach; Royal Society of Chemistry; Soft Matter; 14; 41; 9-2018; 8306-8316
1744-683X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/C8SM01392F
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2018/SM/C8SM01392F
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1807.02497
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.885934

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