Stress coupling effect on ideal shear strength: tungsten as a case study

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dc.contributor.authorČerný, Miroslavcs
dc.contributor.authorŠesták, Petrcs
dc.contributor.authorPokluda, Jaroslavcs
dc.coverage.issue12cs
dc.coverage.volume2016cs
dc.date.accessioned2020-08-04T11:58:04Z
dc.date.available2020-08-04T11:58:04Z
dc.date.issued2016-12-05cs
dc.description.abstractMechanical response of a perfect bcc tungsten crystal to a multiaxial loading was investigated from first principles. The multiaxial stress state consisted of the shear stress and a superimposed compressive triaxial stress with various levels of differential stresses. The studied shear system was 111{110}. Results obtained within a relatively wide range of the compressive stresses showed that increasing hydrostatic triaxial stress (with zero differential stresses) increased the shear strength almost linearly. On the other hand, triaxial stresses with greater portion of the differential components did not have such a simple effect on the shear strength: We found a certain optimum value of the superimposed triaxial stress yielding the maximum shear strength. Any change (both increase and decrease) in the triaxial stress then reduced the ideal shear strength value.en
dc.formattextcs
dc.format.extent5317985-1-5317985-5cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationAdvances in Materials Science and Engineering. 2016, vol. 2016, issue 12, p. 5317985-1-5317985-5.en
dc.identifier.doi10.1155/2016/5317985cs
dc.identifier.issn1687-8434cs
dc.identifier.other130160cs
dc.identifier.urihttp://hdl.handle.net/11012/63736
dc.language.isoencs
dc.publisherHindawics
dc.relation.ispartofAdvances in Materials Science and Engineeringcs
dc.relation.urihttp://dx.doi.org/10.1155/2016/5317985cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1687-8434/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectIdeal shear strengthen
dc.subjectab initio calculationsen
dc.subjectstress couplingen
dc.titleStress coupling effect on ideal shear strength: tungsten as a case studyen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-130160en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:58:04en
sync.item.modts2020.08.04 12:50:55en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé kovové materiály a kompozity na bázi kovůcs
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