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On the effect of geometrical fiber arrangement on damage initiation in CFRPs under transverse tension and compression

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carlosiii.embargo.terms2023-10-15
dc.affiliation.areaUC3M. Área de Ingeniería Mecánicaes
dc.affiliation.dptoUC3M. Departamento de Ingeniería Mecánicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnologías de Fabricación y Diseño de Componentes Mecánicos y Biomecánicoses
dc.contributor.authorMarco Esteban, Miguel
dc.contributor.authorGiner, Eugenio
dc.contributor.authorMiguélez Garrido, María Henar
dc.contributor.authorGonzález, David
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.date.accessioned2022-08-25T10:56:27Z
dc.date.available2023-10-15T23:00:07Z
dc.date.issued2021-10-15
dc.description.abstractThe mechanical performance of composite materials is strongly dependent on its microstructure. Efficient design of composites requires proper estimation of the effect of the microstructure on residual stresses that arising from cooling due to manufacturing temperature. The study of the stresses and damage in fibres interface and its relationship with geometrical distribution of the fibres can contribute to a better comprehension of the mechanical response of the composite. We use 2D numerical models to represent a composite material reinforced with longitudinal fibres. The mechanical behaviour is analysed taking into account the cooling effect and tension/compression transverse loading. We have generated a range of virtual microstructures, characterized by the microstructure randomness, to study the influence of the fiber randomness on the damage initiation. Damage initiation at fibres interfaces has been estimated from the stresses induced at the interface, both in the whole structure and for individual fibers. As expected, a strong effect of the randomness of the fiber arrangement on the damage initiation has been found. For all microstructures and loading modes, higher values of microstructure randomness results in earlier damage development. Normal and shear stresses at individual fibre interfaces have been analysed under tension and compression loading. In tension, normal stress at the fiber interface fully dominates the interfacial damage initiation. In compression, damage is almost completely dominated by the interfacial tangential stress. In compression, localized plasticity develops simultaneously with damage initiation whereas in tension, damage initiation occurs at a stress three times lower than the required for the onset of plasticity. The maximum shear and normal stresses around individual fibers are strongly affected by the local neighborhood.en
dc.description.sponsorshipThe authors gratefully acknowledge the funding support received from the Spanish Ministerio de Ciencia e Innovación and the FEDER operation program for funding the projects DPI2017‐89197‐C2‐1‐R and DPI2017‐89197‐C2‐2‐R.en
dc.description.statusPublicadoes
dc.format.extent10
dc.identifier.bibliographicCitationComposite Structures, (2021), v. 274, 114360en
dc.identifier.doihttps://doi.org/10.1016/j.compstruct.2021.114360
dc.identifier.issn0263-8223
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue114360
dc.identifier.publicationlastpage10
dc.identifier.publicationtitleCOMPOSITE STRUCTURESen
dc.identifier.publicationvolume274
dc.identifier.urihttps://hdl.handle.net/10016/35591
dc.identifier.uxxiAR/0000029383
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. DPI2017-89197-C2-1-R
dc.relation.projectIDGobierno de España. DPI2017‐89197‐C2‐2‐R
dc.rights© 2021 Elsevier Ltd. All rights reserved.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.otherInterface damageen
dc.subject.otherRandom fiber distributionsen
dc.subject.otherCooling effecten
dc.subject.otherPeriodic boundary conditionsen
dc.titleOn the effect of geometrical fiber arrangement on damage initiation in CFRPs under transverse tension and compressionen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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