Critical applied stresses for a crack initiation from a sharp V-notch

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dc.contributor.authorNáhlík, Lubošcs
dc.contributor.authorHutař, Pavelcs
dc.contributor.authorŠtegnerová, Kateřinacs
dc.coverage.issue30cs
dc.coverage.volume8cs
dc.date.issued2014-10-31cs
dc.description.abstractThe aim of the paper is to estimate a value of the critical applied stress for a crack initiation from a sharp V-notch tip. The classical approach of the linear elastic fracture mechanics (LELM) was generalized, because the stress singularity exponent differs from 0.5 in the studied case. The value of the stress singularity exponent depends on the V-notch opening angle. The finite element method was used for a determination of stress distribution in the vicinity of the sharp V-notch tip and for the estimation of the generalized stress intensity factor depending on the V-notch opening angle. Critical value of the generalized stress intensity factor was obtained using stability criteria based on the opening stress component averaged over a critical distance d from the V-notch tip and generalized strain energy density factor. Calculated values of the critical applied stresses were compared with experimental data from the literature and applicability of the LEFM concept is discussed.en
dc.description.abstractThe aim of the paper is to estimate a value of the critical applied stress for a crack initiation from a sharp V-notch tip. The classical approach of the linear elastic fracture mechanics (LELM) was generalized, because the stress singularity exponent differs from 0.5 in the studied case. The value of the stress singularity exponent depends on the V-notch opening angle. The finite element method was used for a determination of stress distribution in the vicinity of the sharp V-notch tip and for the estimation of the generalized stress intensity factor depending on the V-notch opening angle. Critical value of the generalized stress intensity factor was obtained using stability criteria based on the opening stress component averaged over a critical distance d from the V-notch tip and generalized strain energy density factor. Calculated values of the critical applied stresses were compared with experimental data from the literature and applicability of the LEFM concept is discussed.en
dc.formattextcs
dc.format.extent55-61cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationFrattura ed Integrita Strutturale-Fracture and Structural Integrity. 2014, vol. 8, issue 30, p. 55-61.en
dc.identifier.doi10.3221/IGF-ESIS.30.08cs
dc.identifier.issn1971-8993cs
dc.identifier.orcid0000-0002-1570-2705cs
dc.identifier.orcid0000-0003-3827-5408cs
dc.identifier.other110393cs
dc.identifier.researcheridA-6475-2009cs
dc.identifier.researcheridB-2957-2009cs
dc.identifier.scopus22635754000cs
dc.identifier.scopus22634557800cs
dc.identifier.urihttp://hdl.handle.net/11012/180640
dc.language.isoencs
dc.publisherGruppo Italiano Fratturacs
dc.relation.ispartofFrattura ed Integrita Strutturale-Fracture and Structural Integritycs
dc.relation.urihttps://www.fracturae.com/index.php/fis/article/view/1286cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1971-8993/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectCrack initiationen
dc.subjectV-notchen
dc.subjectcritical stressen
dc.subjectstrain energy density factoren
dc.subjectgeneralized linear elastic fracture mechanicsen
dc.subjectfracture criteria.en
dc.subjectCrack initiation
dc.subjectV-notch
dc.subjectcritical stress
dc.subjectstrain energy density factor
dc.subjectgeneralized linear elastic fracture mechanics
dc.subjectfracture criteria.
dc.titleCritical applied stresses for a crack initiation from a sharp V-notchen
dc.title.alternativeCritical applied stresses for a crack initiation from a sharp V-notchen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-110393en
sync.item.dbtypeVAVen
sync.item.insts2025.10.14 15:07:20en
sync.item.modts2025.10.14 09:57:40en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav mechaniky těles, mechatroniky a biomechanikycs
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