Towards Prediction of Failure in Ti-6Al-4V Aerospace Materials by Surface Observations

dc.contributor.authorMatikas, T. E.en
dc.date.accessioned2015-11-24T17:31:42Z
dc.date.available2015-11-24T17:31:42Z
dc.identifier.issn0039-2103-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/13615
dc.rightsDefault Licence-
dc.subjectfatigue failureen
dc.subjectsurface characterisationen
dc.subjecttitanium alloysen
dc.subjectstress-intensity factorsen
dc.subjectdisplacement-fieldsen
dc.subjectmoire interferometryen
dc.subjectoptical methodsen
dc.subjectcracken
dc.subjectparametersen
dc.titleTowards Prediction of Failure in Ti-6Al-4V Aerospace Materials by Surface Observationsen
heal.abstractThis paper deals with the development of a methodology for the prediction of material failure in metallic aerospace alloys by evaluating changes in surface characteristics directly prior to unstable fatigue crack propagation. The study is based on in situ nondestructive characterisation of the depression zone ahead of the crack tip of fatigue-pre-cracked titanium alloy specimens subjected to static loading. A relationship between the surface characteristics of the deformation zone ahead of the crack and the stress intensity factor of the material was obtained. This relationship was common to a variety of microstructural conditions such as mill-annealed and beta-annealed microstructures. Based on the analysis, prediction of the impending fracture in cracked samples of the material was enabled. The outcome of this study can be used for optimising the service life of structural components.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primaryDOI 10.1111/j.1475-1305.2008.00604.x-
heal.identifier.secondary<Go to ISI>://000295918500038-
heal.journalNameStrainen
heal.journalTypepeer reviewed-
heal.languageen-
heal.publicationDate2011-
heal.publisherBlackwell Publishing Ltden
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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