Influence of humidity of environment on fatigue crack propagation in railway axle

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dc.contributor.authorNáhlík, L.
dc.contributor.authorPokorný, P.
dc.contributor.authorVojtek, T.
dc.contributor.authorHutař, P.
dc.contributor.editorAdámek, Vítězslav
dc.contributor.editorJonášová, Alena
dc.contributor.editorPlánička, Stanislav
dc.contributor.editorZajíček, Martin
dc.date.accessioned2019-01-17T07:32:26Z
dc.date.available2019-01-17T07:32:26Z
dc.date.issued2018
dc.description.abstract-translatedThe presentation is devoted to the crack propagation in the railway axle made of EA4T steel. The propagating fatigue crack is subjected to the different kinds of crack closure. The paper describes contribution of plasticity induced crack closure, roughness induced crack closure and oxide induced crack closure to the total crack closure and their influence on the residual fatigue lifetime of the railway axle. Special attention is devoted to the influence of humidity of the air to the fatigue crack propagation and railway axle residual fatigue lifetime. Fig.1 shows detail of fracture surfaces with different width of oxide layers occurred during fatigue testing under different humidity of laboratory air. It is evident the increase of oxides on the fracture surfaces with the increase of absolute air humidity. The experimental results were obtained using chamber developed at Institute of Physics of Materials CAS for fatigue testing machine, which enables fatigue tests under different air humidity. The chamber used is shown in Fig. 2.en
dc.description.sponsorshipThis work was supported through the project m-IPMinfra No. CZ.02.1.01/0.0/0.0/16_013/0001823 of the Ministry of Education, Youth and Sports of the Czech Republic and by research infrastructure IPMinfra supported by the project No. LM2015069 of the same provider.en
dc.format2 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationComputational mechanics 2018: book of extended abstracts: 34th conference with international participation, p. 69-70.en
dc.identifier.isbn978-80-261-0819-1
dc.identifier.urihttp://hdl.handle.net/11025/30812
dc.language.isoenen
dc.publisherZápadočeská univerzita v Plznics
dc.relation.ispartofseriesComputational Mechanicsen
dc.rightsCopyright © 2018 University of West Bohemia, Plzeň, Czech Republicen
dc.rights.accessopenAccessen
dc.subjectvlhkostcs
dc.subjectželezniční nápravacs
dc.subjectšíření trhlincs
dc.subjectzkoušení materiálucs
dc.subject.translatedhumidityen
dc.subject.translatedrailway axleen
dc.subject.translatedcrack propagationen
dc.subject.translatedmaterial testingen
dc.titleInfluence of humidity of environment on fatigue crack propagation in railway axleen
dc.typekonferenční příspěvekcs
dc.typeconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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