Micromechanical study on the influence of scale effect in the first stage of damage in composites

The variation in the apparent strength of a lamina in a laminate depending on the stacking sequence and thicknesses of the laminas of the laminate has been a matter of interest since the initiation of the extension of the applicability of composites. This fact led to the concept of in-situ strength,...

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Autores: París Carballo, Federico, Velasco López, María Luisa, Correa Montoto, Elena
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/166184
Acceso en línea:https://hdl.handle.net/11441/166184
https://doi.org/10.1016/j.compscitech.2018.03.004
Access Level:acceso abierto
Palabra clave:Composites
In-situ strength
Scale effect
Damage
Interfacial Fracture Mechanics
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spelling Micromechanical study on the influence of scale effect in the first stage of damage in compositesParís Carballo, FedericoVelasco López, María LuisaCorrea Montoto, ElenaCompositesIn-situ strengthScale effectDamageInterfacial Fracture MechanicsThe variation in the apparent strength of a lamina in a laminate depending on the stacking sequence and thicknesses of the laminas of the laminate has been a matter of interest since the initiation of the extension of the applicability of composites. This fact led to the concept of in-situ strength, the problem itself being covered as a scale effect. In this paper this question is revisited moving towards the level where the damage appears, that is the micromechanical level. As the origin of the effect under consideration, the variation of thickness, takes place at a different level (mesomechanical), a multi-scale model is developed. It is possible in this model to vary the thickness of the lamina under consideration and to observe its effect on the damage. In this paper, only the first stage of damage, which appears in form of debondings between fibres and matrix, is taken into consideration. The analysis carried out shows that there is no scale effect at this first stage of the damage, which is corroborated by experimental evidences.ElsevierMecánica de Medios Continuos y Teoría de EstructurasTEP131: Grupo de Elasticidad y Resistencia de Materiales2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/166184https://doi.org/10.1016/j.compscitech.2018.03.004reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésComposites Science and Technology, 160, 1-8.https://www.sciencedirect.com/science/article/pii/S0266353817320626info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1661842026-06-17T12:51:07Z
dc.title.none.fl_str_mv Micromechanical study on the influence of scale effect in the first stage of damage in composites
title Micromechanical study on the influence of scale effect in the first stage of damage in composites
spellingShingle Micromechanical study on the influence of scale effect in the first stage of damage in composites
París Carballo, Federico
Composites
In-situ strength
Scale effect
Damage
Interfacial Fracture Mechanics
title_short Micromechanical study on the influence of scale effect in the first stage of damage in composites
title_full Micromechanical study on the influence of scale effect in the first stage of damage in composites
title_fullStr Micromechanical study on the influence of scale effect in the first stage of damage in composites
title_full_unstemmed Micromechanical study on the influence of scale effect in the first stage of damage in composites
title_sort Micromechanical study on the influence of scale effect in the first stage of damage in composites
dc.creator.none.fl_str_mv París Carballo, Federico
Velasco López, María Luisa
Correa Montoto, Elena
author París Carballo, Federico
author_facet París Carballo, Federico
Velasco López, María Luisa
Correa Montoto, Elena
author_role author
author2 Velasco López, María Luisa
Correa Montoto, Elena
author2_role author
author
dc.contributor.none.fl_str_mv Mecánica de Medios Continuos y Teoría de Estructuras
TEP131: Grupo de Elasticidad y Resistencia de Materiales
dc.subject.none.fl_str_mv Composites
In-situ strength
Scale effect
Damage
Interfacial Fracture Mechanics
topic Composites
In-situ strength
Scale effect
Damage
Interfacial Fracture Mechanics
description The variation in the apparent strength of a lamina in a laminate depending on the stacking sequence and thicknesses of the laminas of the laminate has been a matter of interest since the initiation of the extension of the applicability of composites. This fact led to the concept of in-situ strength, the problem itself being covered as a scale effect. In this paper this question is revisited moving towards the level where the damage appears, that is the micromechanical level. As the origin of the effect under consideration, the variation of thickness, takes place at a different level (mesomechanical), a multi-scale model is developed. It is possible in this model to vary the thickness of the lamina under consideration and to observe its effect on the damage. In this paper, only the first stage of damage, which appears in form of debondings between fibres and matrix, is taken into consideration. The analysis carried out shows that there is no scale effect at this first stage of the damage, which is corroborated by experimental evidences.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/166184
https://doi.org/10.1016/j.compscitech.2018.03.004
url https://hdl.handle.net/11441/166184
https://doi.org/10.1016/j.compscitech.2018.03.004
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Composites Science and Technology, 160, 1-8.
https://www.sciencedirect.com/science/article/pii/S0266353817320626
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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