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dc.contributor.authorVasco‐Olmo, JM
dc.contributor.authorDíaz, FA
dc.contributor.authorNeto, DM
dc.contributor.authorSérgio, ER
dc.contributor.authorAntunes, FV
dc.contributor.authorJames, Neil
dc.date.accessioned2022-05-04T13:05:15Z
dc.date.available2022-05-04T13:05:15Z
dc.date.issued2022-04
dc.identifier.issn1460-2695
dc.identifier.issn1460-2695
dc.identifier.urihttp://hdl.handle.net/10026.1/19179
dc.description.abstract

<jats:title>Abstract</jats:title><jats:p>In this work, the boundaries of small‐scale yielding (SSY) and large‐scale yielding (LSY) have been experimentally evaluated from the analysis of crack tip opening displacement (CTOD) measured by digital image correlation (DIC). According to a previous numerical work, the ratio between the elastic CTOD range and the total CTOD range (Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>/Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>t</jats:italic></jats:sub>) defines the boundaries of SSY conditions and LSY. Three materials have been studied, commercially pure titanium and 2024‐T3 and 7050‐T6 aluminum alloys, tested at different stress ratio values. SSY conditions are shown to dominate when Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>/Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>t</jats:italic></jats:sub> ≥ 79% and ≥78% for titanium and the two aluminum alloys, respectively. In addition, LSY can be established when Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>e</jats:italic></jats:sub>/Δ<jats:italic>δ</jats:italic><jats:sub><jats:italic>t</jats:italic></jats:sub> ≤ 66.3% and ≤67.2% for titanium and for 2024‐T3 and 7050‐T6 aluminum alloys, respectively. Transition or LSY conditions are more probable in fatigue tests conducted at low <jats:italic>R</jats:italic> ratio and for crack lengths above 40% with respect to the width of the specimen.</jats:p>

dc.format.extent1276-1291
dc.languageen
dc.language.isoen
dc.publisherWiley
dc.subjectcrack tip opening displacement
dc.subjectdigital image correlation (DIC)
dc.subjectfatigue crack propagation
dc.subjectlarge-scale yielding (LSY)
dc.subjectlinear elastic fracture mechanics
dc.subjectsmall-scale yielding (SSY)
dc.subjectstress intensity factor
dc.titleEvaluation of small‐scale yielding boundary using digital image correlation results
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000754884600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue4
plymouth.volume45
plymouth.publication-statusPublished
plymouth.journalFatigue and Fracture of Engineering Materials and Structures
dc.identifier.doi10.1111/ffe.13674
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2022-01-31
dc.rights.embargodate2023-2-14
dc.identifier.eissn1460-2695
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1111/ffe.13674
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review


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