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Mixed Mode interlayer fracture of glass fiber/nano-enhanced epoxy composites

2014-05-27Recensão Acesso restrito
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datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorSilva, H.
dc.contributor.authorFerreira, J. A. M.
dc.contributor.authorCapela, C.
dc.contributor.authorRichardson, M. O. W.
dc.date.accessioned2026-05-15T13:26:21Z
dc.date.available2026-05-15T13:26:21Z
dc.date.issued2014-05-27
dc.description.abstractIncreasing interlaminar fracture toughness (IFT) has long been an important goal in the fiber reinforced composites field. For that purpose some research has recently explored the use of nanoparticle reinforced matrices to improve interlaminar strength. In this present paper a small quantity of nanoclays (NC) and multiwalled carbon nanotubes (MWCNT) were used in order to enhance the IFT of glass fiber/epoxy composite laminates. The composites sheets were produced by a vacuum molding process. Mode I, Mode II, and Mixed-Mode I/II tests were performed to determine critical strain energy release rates, using double cantilever beam, end-notched flexure, and Mixed-Mode Bending specimens, respectively. Significant improvements in IFT were obtained for all loading modes by the incorporation of NC into the epoxy resin, whilst MWCNT produced only moderate improvements. For Mode I, IFT improvement by the incorporation of nanoparticle fillers, reached about 31% for 3 wt% of NC and 17% for 1 wt% of MWCNT. In Mode II the increase was about 50% for 3 wt% of NC and 30% for 1 wt% of MWCNT. The dispersion of small quantities NC and MWCNT into matrices significantly improved Mixed-Mode IFTs for all loading mode ratios G II/G. The total fracture toughness G increased under Mode II loading components and linear Mixed-Mode fracture criteria reproduced the Gc versus Mode ratios GII/G and GI versus GII relationship.eng
dc.description.sponsorshipThe authors thank Portuguese Foundation to Science and Technology for funding this work, Project n PTDC/EME-PME/113695/2009 co-financed by FEDER, through the Operational Factors for Competitiveness Programme of the QREN with reference COMPETE: FCOMP-01-0124-FEDER-015152. This research is also sponsored by FEDER funds through the program COMPETE and by national funds through FCT, under the Project PEst-C/EME/UI0285/2013.
dc.identifier.citationSilva, H., Ferreira, J. A. M., Capela, C., & Richardson, M. O. W. (2014). Mixed Mode interlayer fracture of glass fiber/nano-enhanced epoxy composites. Composites Part A: Applied Science and Manufacturing, 64, 211-222. https://doi.org/10.1016/j.compositesa.2014.05.013
dc.identifier.doi10.1016/j.compositesa.2014.05.011
dc.identifier.issn1359-835X
dc.identifier.urihttp://hdl.handle.net/10400.8/16284
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationEnhancement of mechanical properties on nano-filled hybrid composites
dc.relationStrategic Project - UI 285 - 2013-2014
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S1359835X14001535
dc.relation.ispartofComposites Part A: Applied Science and Manufacturing
dc.rights.uriN/A
dc.subjectA. Glass fibres Particle-reinforcement
dc.subjectB. Delamination
dc.subjectB. Fracture toughness
dc.subjectC. Damage mechanics
dc.subjectD. Mechanical testing
dc.titleMixed Mode interlayer fracture of glass fiber/nano-enhanced epoxy compositeseng
dc.typereview
dspace.entity.typePublication
oaire.awardNumberPTDC/EME-PME/113695/2009
oaire.awardNumberPEst-C/EME/UI0285/2013
oaire.awardTitleEnhancement of mechanical properties on nano-filled hybrid composites
oaire.awardTitleStrategic Project - UI 285 - 2013-2014
oaire.awardURIhttp://hdl.handle.net/10400.8/15616
oaire.awardURIhttp://hdl.handle.net/10400.8/13285
oaire.citation.endPage222
oaire.citation.startPage211
oaire.citation.titleComposites Part A: Applied Science and Manufacturing
oaire.citation.volume64
oaire.fundingStreamConcurso para Projectos de I&D em todos os Domínios Científicos - 2009
oaire.fundingStream6820 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCapela
person.givenNameCarlos
person.identifier.ciencia-id9B1E-6857-3D6B
person.identifier.orcid0000-0003-3334-4945
person.identifier.ridG-6395-2016
person.identifier.scopus-author-id7801358401
relation.isAuthorOfPublication9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isAuthorOfPublication.latestForDiscovery9b079aa3-b79b-4395-b081-1f23d6a17514
relation.isProjectOfPublicationddb0820d-5cf9-4248-9ea0-7c5d89050a81
relation.isProjectOfPublication6b741f11-7fd6-4328-8dbb-0eff4bc07dc1
relation.isProjectOfPublication.latestForDiscoveryddb0820d-5cf9-4248-9ea0-7c5d89050a81

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