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dc.contributor.authorPeron, Mirco
dc.contributor.authorRazavi, Seyed Mohammed Javad
dc.contributor.authorBerto, Filippo
dc.contributor.authorTorgersen, Jan
dc.contributor.authorMarsavina, L
dc.date.accessioned2018-07-10T11:10:41Z
dc.date.available2018-07-10T11:10:41Z
dc.date.created2017-10-23T11:21:12Z
dc.date.issued2017
dc.identifier.citationFrattura ed Integrità Strutturale. 2017, 11 (42), 214-222.nb_NO
dc.identifier.issn1971-8993
dc.identifier.urihttp://hdl.handle.net/11250/2505016
dc.description.abstractRecent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a reliable engineering approach for assessing the brittle fracture of several brittle materials. It is worthy of notice that the application of SED criterion and the reliability of its results are strictly related to the proper determination of fracture parameters, i.e. the critical value of deformation energy Wc and the radius Rc of the control volume. This work presents an experimental methodology for their determination by means of notched specimens for different polyurethane densities, ranging from 100 to 651 kg/m3. Then, once obtained these critical parameters, the failure load in different types of notches and cracked specimens under mode I have been predicted. Moreover, for cracked specimens under mixed mode and mode II, the authors propose a personal approach that confirms PUR foams can be treated as brittle materialsnb_NO
dc.language.isoengnb_NO
dc.publisherGruppo Italiano Fratturanb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleLocal strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shapenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.source.pagenumber214-222nb_NO
dc.source.volume11nb_NO
dc.source.journalFrattura ed Integrità Strutturalenb_NO
dc.source.issue42nb_NO
dc.identifier.doi10.3221/IGF-ESIS.42.23
dc.identifier.cristin1506738
dc.description.localcode© 2017 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.nb_NO
cristin.unitcode194,64,92,0
cristin.unitnameInstitutt for maskinteknikk og produksjon
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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