Research of Effects of Defects on Stability Failures of Semi-monocoque Stiffeners

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dc.contributor.authorKatrňák, Tomášcs
dc.contributor.authorJuračka, Jaroslavcs
dc.contributor.authorJebáček, Ivocs
dc.coverage.issue3cs
dc.coverage.volume23cs
dc.date.accessioned2020-08-04T11:02:47Z
dc.date.available2020-08-04T11:02:47Z
dc.date.issued2020-01-22cs
dc.description.abstractThis article presents further results of the research of effects of model defects on the local buckling of compressed stiffeners in nonlinear finite element (FE) analyses. The main outcomes are confirmation of trends for 10 sets of profile dimensions, final validations of various sets of FE simulations, and designs of practical types of defects with appropriate ratio values. A single node defect and then complex types of defects with alternating distributions of node shifts along one edge, two free flange edges, one flange surface and both flange surfaces are analyzed in this research project. First parts of this paper describe designed FE models with defects, their effects on simulation results, colored graphic visualizations with stress scales and determinations of the sudden failure of stability in the local mode. Then, particular results of FE analyses are validated by a comparison with the results of analytical methods of stability failure. Final detail comparisons of analytical and FE simulation results with data of experimental tests confirm predicted critical buckling forces. The validation of results and design parameters together with the knowledge of effects of model defects on buckling behaviors allows more accurate simulations of internal stiffeners of thin-walled semi-monocoque structures.en
dc.formattextcs
dc.format.extent83-90cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationAVIATION. 2020, vol. 23, issue 3, p. 83-90.en
dc.identifier.doi10.3846/aviation.2019.11903cs
dc.identifier.issn1648-7788cs
dc.identifier.other163580cs
dc.identifier.urihttp://hdl.handle.net/11012/193251
dc.language.isoencs
dc.publisherVilnius Gediminas Technical University (VGTU) Presscs
dc.relation.ispartofAVIATIONcs
dc.relation.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85079613699&origin=resultslist&sort=plf-f&src=s&st1=&st2=&sid=48232ef5363a959e132f4be7b048fc3e&sot=b&sdt=b&sl=32&s=DOI%2810.3846%2faviation.2019.11903%29&relpos=0&citeCnt=0&searchTerm=cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1648-7788/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectbucklingen
dc.subjectstabilityen
dc.subjectfailureen
dc.subjectstress analysisen
dc.subjectfinite element methodsen
dc.subjectstiffeneren
dc.subjectimperfectionen
dc.subjectztráta stability
dc.subjectstabilita
dc.subjectporucha
dc.subjectpevnostní kontrola
dc.subjectmetoda konečných prvků
dc.subjectvýztuha
dc.subjectimperfekce
dc.titleResearch of Effects of Defects on Stability Failures of Semi-monocoque Stiffenersen
dc.title.alternativeVýzkum vlivu vad na ztráty stability výztuh poloskořepinových konstrukcícs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-163580en
sync.item.dbtypeVAVen
sync.item.insts2021.03.11 12:53:34en
sync.item.modts2021.03.11 12:14:16en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Letecký ústavcs
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