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dc.contributor.authorAlmatrafi, Meshal
dc.contributor.authorTheofanous, Marios
dc.contributor.authorDirar, Samir
dc.contributor.authorBock, Marina
dc.date.accessioned2021-02-16T10:26:53Z
dc.date.available2021-02-16T10:26:53Z
dc.date.issued2021-01-23
dc.identifier.citationAlmatrafi, M., Theofanus, M., Dirar, S. and Bock, M. (2021) Structural response of cold-formed lipped Z purlins – Part 2 numerical modelling and optimisation of lip size. Thin-Walled Structures, 161, 107453.en
dc.identifier.issn0263-8231en
dc.identifier.doi10.1016/j.tws.2021.107453en
dc.identifier.urihttp://hdl.handle.net/2436/623931
dc.descriptionThis is an accepted manuscript of an article published by Elsevier in Thin-Walled Structures, available online: https://doi.org/10.1016/j.tws.2021.107453 The accepted version of the publication may differ from the final published version.en
dc.description.abstractThis paper reports a numerical study on the optimisation of the lip size of Z-sections under gravity loads. Numerical models of cold-formed steel Z purlins restrained by cladding and angle struts and subjected to sagging moment were developed and validated against a total of 8 experimental results on Z-sections that failed in local or/and distortional buckling reported in the companion paper. Models of varying levels of complexity were generated and the key parameters affecting the structural response were determined by means of a sensitivity analysis. The investigated parameters included the magnitude, shape and combination of initial geometric imperfections pertinent to local and distortional buckling and the simplified or explicit modelling of test details such as struts and sheeting. Having determined the appropriate modelling strategy that leads to the best balance between accuracy and computational cost, parametric studies were conducted to investigate the effect of decreasing or increasing the lip depth on the sections’ moment resistance and corresponding failure mode. Based on the parametric study results, the optimal lip size which maximizes the moment to weight ratio for each section was determined. Finally, all generated FE results are utilized to evaluate the accuracy of the moment resistance prediction of EN 1993-1-3 and the Direct Strength Method.en
dc.formatapplication/pdfen
dc.languageen
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttps://www.sciencedirect.com/science/article/abs/pii/S0263823121000197?via%3Dihuben
dc.subjectcold-formed steelen
dc.subjectdistortional bucklingen
dc.subjectlip size optimisationen
dc.subjectFEAen
dc.subjectlocal bucklingen
dc.subjectlipped z-sectionsen
dc.subjectpurlinsen
dc.titleStructural response of cold-formed lipped Z purlins – Part 2 numerical modelling and optimisation of lip sizeen
dc.typeJournal articleen
dc.identifier.journalThin-Walled Structuresen
dc.date.updated2021-02-08T18:23:13Z
dc.date.accepted2021-01-06
rioxxterms.funderUniversity of Wolverhamptonen
rioxxterms.identifier.projectUOW16022021MBen
rioxxterms.versionAMen
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
rioxxterms.licenseref.startdate2022-01-23en
dc.source.volume161
dc.source.beginpage107453
dc.source.endpage107453
dc.description.versionAccepted version
refterms.dateFCD2021-02-16T10:26:17Z
refterms.versionFCDAM


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