Fractal behavior throughout stretch zone of 15-5PH steel under elastic-plastic loading conditions

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dc.contributor.authorde Campos, Kamila Amato [UNESP]
dc.contributor.authorYoshino, Celso [UNESP]
dc.contributor.authorde Oliveira Hein, Luis Rogerio [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:28:13Z
dc.date.available2014-05-20T13:28:13Z
dc.date.issued2009-11-15
dc.description.abstractThe topography of the fracture surface along the stretch zone of 15-5PH steel is analyzed for a range of specimen thicknesses, providing information on the changes in elastic-plastic behavior. The relationship between the stretch zone width, as a local toughness measurement, and fractal dimension is discussed along with the restrictions imposed by the stress field evolution. Image stacks for extended depth-of-field 3D reconstructions of the stretch zone region were acquired using a reflected light microscope. Significant correlations between the stretch zone width and fractal dimension with specimen thickness were found from measurements on elevation maps, especially at the center regions. This demonstrates that the stretch zone has heterogeneous topographic behavior depending on thickness and is more homogeneous under plane strain states. Finally, a general equation is suggested to describe the stretch zone width dependence on both the fractal dimension and material thickness. (C) 2009 Elsevier B.V. All rights reserved.en
dc.description.affiliationSão Paulo State Univ, Mat & Technol Dept, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, Mat & Technol Dept, 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.description.sponsorshipIdFAPESP: 08/01788-2
dc.description.sponsorshipIdFAPESP: 01/09664-1
dc.description.sponsorshipIdCNPq: 307271/2007-2
dc.description.sponsorshipIdCNPq: 471749/2008-7
dc.format.extent37-41
dc.identifierhttp://dx.doi.org/10.1016/j.msea.2009.07.070
dc.identifier.citationMaterials Science and Engineering A-structural Materials Properties Microstructure and Processing. Lausanne: Elsevier B.V. Sa, v. 525, n. 1-2, p. 37-41, 2009.
dc.identifier.doi10.1016/j.msea.2009.07.070
dc.identifier.issn0921-5093
dc.identifier.urihttp://hdl.handle.net/11449/9366
dc.identifier.wosWOS:000270633400005
dc.language.isoeng
dc.publisherElsevier B.V. Sa
dc.relation.ispartofMaterials Science and Engineering A: Structural Materials Properties Microstructure and Processing
dc.relation.ispartofjcr3.414
dc.relation.ispartofsjr1,694
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectFractal dimensionen
dc.subject15-5PH steelen
dc.subjectStretch zoneen
dc.subjectQuantitative fractographyen
dc.subjectDigital image processingen
dc.titleFractal behavior throughout stretch zone of 15-5PH steel under elastic-plastic loading conditionsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V. Sa
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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