Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/10450
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dc.contributor.authorEspeseth, Vetle-
dc.contributor.authorMorin, David-
dc.contributor.authorTekoğlu, Cihan-
dc.contributor.authorBorvik, Tore-
dc.contributor.authorHopperstad, Odd Sture-
dc.date.accessioned2023-07-14T20:17:01Z-
dc.date.available2023-07-14T20:17:01Z-
dc.date.issued2023-
dc.identifier.issn0376-9429-
dc.identifier.issn1573-2673-
dc.identifier.urihttps://doi.org/10.1007/s10704-023-00701-2-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/10450-
dc.description.abstractThis paper presents an experimental and numerical study on quasi-static ductile tearing of thin plates of the aluminium alloy AA6016 in three tempers. Depending on the temper, the main fracture mechanism in the plate tearing tests changes from grain boundary failure to coalescence of voids nucleated at the constituent particles. The experiments are complemented by nonlinear finite element simulations using an enriched Gurson-TvergaardNeedleman (GTN) model to describe the material response. The onset of accelerated void growth is initiated either by incipient material softening (named the softening model) or by the occurrence of strain localization (named the localization model). It was found that strain localization takes place at a critical porosity f(c), which depends on the current hydrostatic and deviatoric stress states. While the failure strain depends on the stress path, the critical porosity appears to be path independent. A third method is proposed (named the f(c)( T, L) model), where a critical porosity surface f(c) = f(c) (T, L) is used to determine when accelerated void growth starts. The surface is generated beforehand by solving for strain localization under proportional stress states defined by the stress triaxiality T and the Lode parameter L. By comparing the simulations to the experiments, it was found that the localization model performed well for a wide range of stress states. The softening model does not portray dependence on the Lode parameter and is therefore less versatile. The localizationmodel and the f(c)(T, L) model gave similar predictions, but some minor differences were observed for two of the three tempers.en_US
dc.description.sponsorshipNTNU; Research Council of Norway [250553]en_US
dc.description.sponsorshipThe authors gratefully appreciate the financial support from NTNU and the Research Council of Norway through the FRINATEK Program, Project No. 250553 (FractAl). The authors would like to acknowledge Mr Sander N. Sundt, Mr Aslak M. Blytt and Mr Trond Auestad for assisting with the experimental programmes. The authors would also like to thank Dr Lars E. B. Daehli for user subroutines on imposing stress states, Dr Susanne Thomesen for assisting with the SEM images and Dr Olaf Engler for providing the materials.en_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofInternational Journal of Fractureen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectFractureen_US
dc.subjectVoids and inclusionsen_US
dc.subjectPorous materialen_US
dc.subjectFinite elementsen_US
dc.subjectStability and bifurcationen_US
dc.subjectVoid Growthen_US
dc.subjectGurson Modelen_US
dc.subjectStrain Localizationen_US
dc.subjectFracture Experimentsen_US
dc.subjectStress Triaxialityen_US
dc.subjectCrack-Propagationen_US
dc.subjectCombined Tensionen_US
dc.subjectPath-Dependenceen_US
dc.subjectDamageen_US
dc.subjectCoalescenceen_US
dc.titleDuctile Tearing of Aluminium Plates: Experiments and Modellingen_US
dc.typeArticleen_US
dc.departmentTOBB ETÜen_US
dc.identifier.wosWOS:000995816300001en_US
dc.identifier.scopus2-s2.0-85160242163en_US
dc.institutionauthor-
dc.identifier.doi10.1007/s10704-023-00701-2-
dc.authorscopusid57265365300-
dc.authorscopusid35192147900-
dc.authorscopusid35320237300-
dc.authorscopusid13612231500-
dc.authorscopusid7003763458-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ2-
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:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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