Effect of micro-cracks in nonhomogeneous stress field on fracture instability in structural components

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dc.contributor.authorStrnadel, Bohumír
dc.contributor.authorMareš, Vratislav
dc.date.accessioned2017-02-01T09:47:08Z
dc.date.available2017-02-01T09:47:08Z
dc.date.issued2016
dc.description.abstractThe paper analyses the effects of statistical distribution in sizes of micro-cracks on scatter of fracture toughness of steels under brittle conditions. The results are utilized for reliability assessment of selected functional parts. The reliability considered as a complementary probability of brittle fracture initiation is discussed in dependence on the character of statistical distribution of micro-crack sizes, mechanical properties of steel, mechanisms of energy dissipation during cracks propagation, variation of loading, stress state of functional part and its service life. This probability approach is compared with deterministic reliability access originating from computation of safety factor. Its rational evaluation as a function of acceptable probability of fracture instability provides high economical effects saving materials and energy.cs
dc.description.firstpage1534cs
dc.description.issue4cs
dc.description.lastpage1543cs
dc.description.sourceWeb of Sciencecs
dc.description.volume3cs
dc.format.extent744841 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citationAIMS Materials Science. 2016, vol. 3, issue 4, p. 1534-1543.cs
dc.identifier.doi10.3934/matersci.2016.4.1534
dc.identifier.issn2372-0468
dc.identifier.issn2372-0484
dc.identifier.urihttp://hdl.handle.net/10084/116837
dc.identifier.wos000390884600018
dc.language.isoencs
dc.publisherAIMScs
dc.relation.ispartofseriesAIMS Materials Sciencecs
dc.relation.urihttp://dx.doi.org/10.3934/matersci.2016.4.1534cs
dc.rights© 2016 Bohumir Strnadel, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution Licensecs
dc.rights.accessopenAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectmicrocrackscs
dc.subjectHRR stress fieldcs
dc.subjectbrittle fracturecs
dc.subjectstress intensity factorcs
dc.subjectfracture probabilitycs
dc.subjectreliabilitycs
dc.subjectstructural componentcs
dc.titleEffect of micro-cracks in nonhomogeneous stress field on fracture instability in structural componentscs
dc.typearticlecs
dc.type.statusPeer-reviewedcs
dc.type.versionpublishedVersioncs

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