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dc.contributor.authorLopez-Crespo, Pablo 
dc.contributor.authorMokhtari, M
dc.contributor.authorMoreno, B
dc.contributor.authorZanganeh, M
dc.date.accessioned2015-07-13T12:07:35Z
dc.date.available2015-07-13T12:07:35Z
dc.date.issued2015-05-01
dc.identifier.citationM. Mokhtari et alii, Frattura ed Integrità Strutturale, 33 (2015) 143-150; DOI: 10.3221/IGF-ESIS.33.18es_ES
dc.identifier.urihttp://hdl.handle.net/10630/10074
dc.descriptionEstudio de la mecánica en el vértice de la grieta mediante datos de desplazamiento.es_ES
dc.description.abstractIn the past two decades, crack-tip mechanics has been increasingly studied with full-field techniques. Within these techniques, Digital Image Correlation (DIC) has been most widely used due to its many advantages, to extract important crack-tip information, including Stress Intensity Factor (SIF), Crack Opening Displacement, J-integral, T-stress, closure level, plastic zone size, etc. However, little information is given in the literature about the experimental setup that provides best estimations for the different parameters. The current work aims at understanding how the experimental conditions used in DIC influence the crack-tip information extracted experimentally. The influence of parameters such as magnification factor, size of the images, position of the images with respect the crack-tip and size of the subset used in the correlation is studied. The influence is studied in terms of SIF and T-stress by using Williams’ model. The concept of determination of the K-dominance zone from experimental data has also explored. In this regard, cyclic loading on a fatigue crack in a compact tension (CT) specimen, made of aluminium 2024-T351 alloy, has been applied and the surface deformation ahead of the crack tip has been examined. The comparison between theoretical and experimental values of KI showed that the effect of subset size on the measured KI is negligible compared to the effect of size of the image.es_ES
dc.description.sponsorshipUniversidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.es_ES
dc.language.isoenges_ES
dc.publisherGIFes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.subjectMateriales - Fatigaes_ES
dc.subject.otherDigital image correlationes_ES
dc.subject.otherStress intensity factores_ES
dc.subject.otherT-stresses_ES
dc.subject.otherCrack tip displacement fieldes_ES
dc.titleSome experimental observations of crack-tip mechanics with displacement dataes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.centroEscuela Politécnica Superiores_ES
dc.relation.eventtitleThird IJFatigue & FFEMS Joint Workshop Characterisation of Crack Tip Fieldses_ES
dc.relation.eventplaceUrbino, Italiaes_ES
dc.relation.eventdate20/04/2015es_ES
dc.cclicenseby-nc-ndes_ES


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