Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1497
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dc.contributor.authorTekoğlu, Cihan-
dc.contributor.authorHutchinson, J. W.-
dc.contributor.authorPardoen, T.-
dc.date.accessioned2019-06-26T08:07:02Z
dc.date.available2019-06-26T08:07:02Z
dc.date.issued2015-03-28
dc.identifier.citationTekoglu, C., Hutchinson, J. W., & Pardoen, T. (2015). On localization and void coalescence as a precursor to ductile fracture. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 373(2038), 20140121.en_US
dc.identifier.issn1364-503X
dc.identifier.urihttps://doi.org/10.1098/rsta.2014.0121-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/1497-
dc.description.abstractTwo modes of plastic flow localization commonly occur in the ductile fracture of structural metals undergoing damage and failure by the mechanism involving void nucleation, growth and coalescence. The first mode consists of a macroscopic localization, usually linked to the softening effect of void nucleation and growth, in either a normal band or a shear band where the thickness of the band is comparable to void spacing. The second mode is coalescence with plastic strain localizing to the ligaments between voids by an internal necking process. The ductility of a material is tied to the strain at macroscopic localization, as this marks the limit of uniform straining at the macroscopic scale. The question addressed is whether macroscopic localization occurs prior to void coalescence or whether the two occur simultaneously. The relation between these two modes of localization is studied quantitatively in this paper using a three-dimensional elastic-plastic computational model representing a doubly periodic array of voids within a band confined between two semi-infinite outer blocks of the same material but without voids. At sufficiently high stress triaxiality, a clear separation exists between the two modes of localization. At lower stress triaxialities, the model predicts that the onset of macroscopic localization and coalescence occur simultaneously. [GRAPHICS] .en_US
dc.description.sponsorshipThe support of the Belgian Science Policy through the IAP 7/21 project is gratefully acknowledged.
dc.language.isoenen_US
dc.publisherRoyal Socen_US
dc.relation.ispartofPhilosophical Transactions Of The Royal Society A-Mathematical Physical And Engineering Sciencesen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectductile fractureen_US
dc.subjectlocalizationen_US
dc.subjectvoid coalescenceen_US
dc.subjectLode parameteren_US
dc.subjectshearen_US
dc.titleOn Localization and Void Coalescence as a Precursor To Ductile Fractureen_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Mechanical Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Makine Mühendisliği Bölümütr_TR
dc.identifier.volume373
dc.identifier.issue2038
dc.authorid0000-0001-7383-3909-
dc.identifier.wosWOS:000350828400003en_US
dc.identifier.scopus2-s2.0-84923658959en_US
dc.institutionauthorTekoğlu, Cihan-
dc.identifier.doi10.1098/rsta.2014.0121-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.author.dept02.7. Department of Mechanical Engineering-
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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