3-D reconstruction by extended depth-of-field in failure analysis - Case study II: Fractal analysis of interlaminar fracture in carbon/epoxy composites

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dc.contributor.authorde Campos, Kamila Amato [UNESP]
dc.contributor.authorAugusto, Juliana [UNESP]
dc.contributor.authorPereira, Thais Abigail [UNESP]
dc.contributor.authorde Oliveira Hein, Luis Rogerio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:28:15Z
dc.date.available2014-05-20T13:28:15Z
dc.date.issued2012-10-01
dc.description.abstractThis work aims to evaluate the fractal behavior of fracture surfaces in laminated carbon/epoxy composite material, by conducting double cantilever beam (DCB) tests and comparing fractal values against critical (at notch region) or local (at selected positions along entire surface) interlaminar fracture toughness data. A conventional light microscope permitted to obtain ordered image stacks to get elevation maps using the extended depth-of-field method for quantitative investigation of fracture surface behavior. Also, a method to define the threshold between macro and micro scales for mixed fractal behavior was proposed, permitting to compare mono-fractal behavior with the "structural" (micro scale or low resolution) and "textural" (macro scale or high resolution) mixed fractal components. It was found a linear correlation between Mode I interlaminar fracture critical toughness (G(IC)) and "structural" fractal dimension, defined as the fractal behavior at micro scale. It suggests that the fracture surface formation in carbon/epoxy composites is highly associated to local features of the microstructure. (C) 2012 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUNESP Univ Estadual Paulista, Mat & Technol Dept, Mat Imaging Lab LAIMat, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Paulista, Mat & Technol Dept, Mat Imaging Lab LAIMat, BR-12516410 Guaratingueta, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent271-279
dc.identifierhttp://dx.doi.org/10.1016/j.engfailanal.2012.05.015
dc.identifier.citationEngineering Failure Analysis. Oxford: Pergamon-Elsevier B.V. Ltd, v. 25, p. 271-279, 2012.
dc.identifier.doi10.1016/j.engfailanal.2012.05.015
dc.identifier.issn1350-6307
dc.identifier.urihttp://hdl.handle.net/11449/9387
dc.identifier.wosWOS:000308770000028
dc.language.isoeng
dc.publisherPergamon-Elsevier B.V. Ltd
dc.relation.ispartofEngineering Failure Analysis
dc.relation.ispartofjcr2.157
dc.relation.ispartofsjr0,933
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectExtended depth-of-fielden
dc.subjectPolymer-matrix compositesen
dc.subjectFractal fractureen
dc.subjectQuantitative fractographyen
dc.subjectOptical microscopyen
dc.title3-D reconstruction by extended depth-of-field in failure analysis - Case study II: Fractal analysis of interlaminar fracture in carbon/epoxy compositesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderPergamon-Elsevier B.V. Ltd
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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