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dc.contributor.authorMartínez Benasat, Antonio
dc.contributor.authorLeón, Noel
dc.contributor.authorArencón Osuna, David
dc.contributor.authorRodríguez Pérez, Jesús
dc.contributor.authorSalazar López, Alicia
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.date.accessioned2013-11-15T12:11:51Z
dc.date.created2013-10
dc.date.issued2013-10
dc.identifier.citationMartinez, A. [et al.]. On the effect of the different notching techniques on the fracture toughness of PETG. "Polymer testing", Octubre 2013, vol. 32, núm. 7, p. 1244-1252.
dc.identifier.issn0142-9418
dc.identifier.urihttp://hdl.handle.net/2117/20624
dc.description.abstractThe fracture toughness of poly (ethylene terephthalate) modified glycol (PETG) has been evaluated using notch sharpening techniques which could be grouped into contact and non-contact procedures. Razor blade tapping, razor blade sliding, razor pressing and broaching are part of the first group, while the femtolaser technique belongs to the second one. Not all the contact procedures generated valid sharp cracks for fracture parameter assessment; indeed none of the samples sharpened via razor sliding generated acceptable sharp cracks. The results revealed that the non-contact femtolaser technique produced the sharpest cracks in this polymer, with crack tip radii of only 0.5 μm, leading to the lowest fracture toughness values. On the contrary, the traditional notch sharpening technique based on razor tapping, recommended in ISO, ESIS and ASTM protocols and standards, generated larger crack tip radii than those introduced via femtolaser and, consequently, resulted in higher fracture toughness values. Both broaching and pressing methods created specimens with smaller crack tip radii compared to those obtained by razor tapping, and hence resulting in intermediate fracture toughness values.
dc.format.extent9 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.otherNotch sharpening
dc.subject.otherPETG
dc.subject.otherTapping
dc.subject.otherSliding
dc.subject.otherPressing
dc.subject.otherBroaching
dc.subject.otherFemtolaser
dc.subject.otherFracture toughness
dc.titleOn the effect of the different notching techniques on the fracture toughness of PETG
dc.typeArticle
dc.subject.lemacPolímers -- Fractura
dc.contributor.groupUniversitat Politècnica de Catalunya. POLYCOM - Polimers i compòsits: tecnologia
dc.description.peerreviewedPeer Reviewed
dc.subject.amsPolymers--Fracture
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0142941813001487
dc.rights.accessRestricted access - publisher's policy
drac.iddocument12793383
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
upcommons.citation.authorMartinez, A.; León, N.; Arencon, D.; Rodríguez, J.; Salazar, A.
upcommons.citation.publishedtrue
upcommons.citation.publicationNamePolymer testing
upcommons.citation.volume32
upcommons.citation.number7
upcommons.citation.startingPage1244
upcommons.citation.endingPage1252


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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain