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Fatigue and impact response of gel-coated glass mats/polyester composites

2013-04-11Artigo científico Acesso aberto
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorCapela, C.
dc.contributor.authorFerreira, J. M.
dc.contributor.authorCravo, H.
dc.contributor.authorCosta, J. M.
dc.date.accessioned2026-06-30T11:58:07Z
dc.date.available2026-06-30T11:58:07Z
dc.date.issued2013-04-11
dc.descriptionLink para o documento - https://www.researchgate.net/publication/259853198_Fatigue_and_impact_response_of_gel-coated_glass_matspolyester_composites?__cf_chl_f_tk=lnYo8.DOvo0IZ9ugdZGeahbYtcoyxQR4scON.bc4GSc-1782820323-1.0.1.1-1m48m8kFGEVrT8wJcvCcmScMCUoIK6b.e65DMeBpE6g
dc.description.abstractComposites based on polyester matrices reinforced with fiber glass mats are widely used in the automotive industry, incorporating in many cases a gel coat surface layer. This paper presents the results of a current study in polyester/short fiber glass mat composites processed by hand lay-up moulding. Different lay-up architectures were tested under impact and fatigue bending loadings. Furthermore, the influence of the gel coat surface layer on fatigue and impact loading performances was also analysed. The composites tested with gel coat layer under compression loading exhibit significant higher bending stiffness, static and fatigue strength than when the gel coat layer was under tensile loading. The impact response showed a slight variation of the peak load and on the elastic recuperation and a significant increase on maximum displacement and absorbed energy with the increase of the incident impact energy. Both energy recovery, in percentage of the incident impact energy, and residual bending strength showed a marked and almost linear decreasing with the increase of the impact energy for all loading conditions, while the absorbed energy increased with the incident impact energy, reaching about 80% of impact energy for the highest impact energies.eng
dc.description.sponsorshipThis research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.
dc.identifier.citationCapela, C., Ferreira, J. M., Cravo, H., & Costa, J. M. (2014). Fatigue and impact response of gel-coated glass mats/polyester composites. Journal of composite materials, 48(9), 1131-1137. DOI: https://doi.org/10.1177/0021998313482159.
dc.identifier.doi10.1177/0021998313482159
dc.identifier.eissn1530-793X
dc.identifier.issn0021-9983
dc.identifier.urihttp://hdl.handle.net/10400.8/16502
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSAGE Publications
dc.relation.hasversionhttps://journals.sagepub.com/doi/10.1177/0021998313482159?__cf_chl_f_tk=MdTX1Kmh45S7snmJgPTodFTOTvyzagLXatSjG415AHE-1782744123-1.0.1.1-IcPIA8UI7gTS8tZGV7f.jqEVLHoGCLy4V9wcN.FLgOA
dc.relation.ispartofJournal of Composite Materials
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGlass fibers
dc.subjectpolyester
dc.subjectfatigue of composites
dc.subjectimpact tests
dc.titleFatigue and impact response of gel-coated glass mats/polyester compositeseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1137
oaire.citation.issue9
oaire.citation.startPage1131
oaire.citation.titleJournal of Composite Materials
oaire.citation.volume48
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

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Composites based on polyester matrices reinforced with fiber glass mats are widely used in the automotive industry, incorporating in many cases a gel coat surface layer. This paper presents the results of a current study in polyester/short fiber glass mat composites processed by hand lay-up moulding. Different lay-up architectures were tested under impact and fatigue bending loadings. Furthermore, the influence of the gel coat surface layer on fatigue and impact loading performances was also analysed. The composites tested with gel coat layer under compression loading exhibit significant higher bending stiffness, static and fatigue strength than when the gel coat layer was under tensile loading. The impact response showed a slight variation of the peak load and on the elastic recuperation and a significant increase on maximum displacement and absorbed energy with the increase of the incident impact energy. Both energy recovery, in percentage of the incident impact energy, and residual bending strength showed a marked and almost linear decreasing with the increase of the impact energy for all loading conditions, while the absorbed energy increased with the incident impact energy, reaching about 80% of impact energy for the highest impact energies.
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