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Analysis of the damage evolution in steel specimens under tension by means of XRTC

dc.contributor.authorSuárez-Guerra, Fernando
dc.contributor.authorGálvez-Ruíz, Jaime Carlos
dc.contributor.authorCendón, David Ángel
dc.contributor.authorAtienza, José Miguel
dc.contributor.authorSket, Federico
dc.contributor.authorMolina-Aldareguia, Jon
dc.date.accessioned2025-03-03T09:38:29Z
dc.date.available2025-03-03T09:38:29Z
dc.date.issued2017-03
dc.description.abstractWhen a steel specimen is tested under tension, damage usually develops evenly all along the specimen, finally necking and leading to the typical cup-cone fracture surface. Nevertheless, some steels present an unusual fracture pattern consisting on a plane fracture surface with a dark region in the centre of the fracture zone. In this contribution, the authors analyse the evolution of the internal damage by using X-ray computed tomography (XRCT) on 3mm-diametre specimens of two steels. The specimens are tested in subsequent loading steps, after each of which it is unloaded and analysed with XRCT. This procedure helps to identify the evolution of damage developed inside each specimen at predefined strain levels. XRCT reveals a very high initial porosity in the material with the cup-cone fracture pattern and a very low initial porosity in the other. In the latter, fracture is triggered by a concentrated internal damage that can be seen as an internal notch which produces a stress concentration that leads to the eventual failure.
dc.identifier.urihttps://hdl.handle.net/10953/4748
dc.language.isoeng
dc.relation.ispartofInternational Symposium on Notch Fracture (ISNF)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spainen
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectSteel
dc.subjectXRCT
dc.subjectDamage evolution
dc.subject.udc691.714
dc.titleAnalysis of the damage evolution in steel specimens under tension by means of XRTC
dc.typeinfo:eu-repo/semantics/conferenceObject
dc.type.versioninfo:eu-repo/semantics/acceptedVersion

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