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

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.identifier.citationAIMS Materials Science. 2016, vol. 3, issue 4, p. 1534-1543.cs
dc.identifier.issn2372-0468
dc.identifier.issn2372-0484
dc.identifier.urihttp://hdl.handle.net/10084/116837
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.format.extent744841 bytes
dc.format.mimetypeapplication/pdf
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.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.identifier.doi10.3934/matersci.2016.4.1534
dc.rights.accessopenAccess
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume3cs
dc.description.issue4cs
dc.description.lastpage1543cs
dc.description.firstpage1534cs
dc.identifier.wos000390884600018


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© 2016 Bohumir Strnadel, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License
Except where otherwise noted, this item's license is described as © 2016 Bohumir Strnadel, et al., licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License