V-Notched components under non-localized creeping condition: numerical evaluation of stresses and strains

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorGallo, Pasqualeen_US
dc.contributor.authorBerto, Filippoen_US
dc.contributor.authorGlinka, Grzegorzen_US
dc.contributor.departmentDepartment of Energy and Mechanical Engineeringen
dc.contributor.groupauthorMarine Technologyen
dc.contributor.organizationUniversity of Padovaen_US
dc.contributor.organizationUniversity of Waterlooen_US
dc.date.accessioned2016-12-16T14:30:42Z
dc.date.issued2016en_US
dc.description.abstractGeometrical discontinues such as notches need to be carefully analysed by engineers because of the stress concentration generated by them. Notches become even more important when the component is subjected, in service, to very severe conditions, such as the high temperature fatigue and imposed visco-plastic behaviour such as creep. The aim of the paper is to present an improvement and extension of the existing notch tip creep stress-strain analysis method developed by Nuñez and Glinka, validated for U-notches only, to a wide variety of blunt V-notches. The key in getting the extension to blunt V-notches is the assumption of the generalized Lazzarin-Tovo solution that allows a unified approach to the evaluation of linear elastic stress fields in the neighbourhood of both cracks and notches. Numerous examples have been analysed up to date, and the stress fields obtained according to the proposed method were compared with appropriate finite element data, showing a very good agreement. In view of the promising results, authors are considering possible further extension of the method to sharp V-notches and cracks introducing the concept of the Strain Energy Density (SED).en
dc.description.versionPeer revieweden
dc.format.extent809-816
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationGallo, P, Berto, F & Glinka, G 2016, ' V-Notched components under non-localized creeping condition: numerical evaluation of stresses and strains ', Procedia Structural Integrity, vol. 2, pp. 809-816 . https://doi.org/10.1016/j.prostr.2016.06.104en
dc.identifier.doi10.1016/j.prostr.2016.06.104en_US
dc.identifier.issn2452-3216
dc.identifier.otherPURE UUID: a89fcf29-000b-4d8d-a3b4-5df44066bb76en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/a89fcf29-000b-4d8d-a3b4-5df44066bb76en_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/11636271/Gallo_et_al_procedia_structural.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/23823
dc.identifier.urnURN:NBN:fi:aalto-201612166000
dc.language.isoenen
dc.relation.ispartofseriesProcedia Structural Integrityen
dc.relation.ispartofseriesVolume 2en
dc.rightsopenAccessen
dc.rights.copyrightCopyright The Authors. Published by Elsevier.en_US
dc.subject.keywordCreepen_US
dc.subject.keywordV-notchesen_US
dc.subject.keywordstress fieldsen_US
dc.subject.keywordstress evaluationen_US
dc.subject.keywordstrain energy densityen_US
dc.titleV-Notched components under non-localized creeping condition: numerical evaluation of stresses and strainsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi

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