DC FieldValueLanguage
dc.contributorDepartment of Civil and Environmental Engineeringen_US
dc.creatorCai, Yen_US
dc.creatorWang, Len_US
dc.creatorZhou, Fen_US
dc.date.accessioned2021-05-05T04:56:54Z-
dc.date.available2021-05-05T04:56:54Z-
dc.identifier.issn0143-974Xen_US
dc.identifier.urihttp://hdl.handle.net/10397/89705-
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectConcentrated bearing loadsen_US
dc.subjectDirect strength methoden_US
dc.subjectElevated temperaturesen_US
dc.subjectFinite element analysisen_US
dc.subjectLean duplex stainless steelen_US
dc.subjectWeb cripplingen_US
dc.titleLean duplex stainless steel tubular sections undergoing web crippling at elevated temperaturesen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume182en_US
dc.identifier.doi10.1016/j.jcsr.2021.106681en_US
dcterms.abstractCodified design rules for web crippling of stainless steel tubular sections at elevated temperatures are currently not available. In this study, non-linear finite element models (FEMs) were developed for the web crippling of cold-formed lean duplex stainless steel (CFLDSS) square and rectangular hollow sections under the concentrated interior bearing loads, namely, the loading conditions of Interior-One-Flange (IOF), Interior-Two-Flange (ITF) and Interior Loading (IL). After successful validation of the FEMs, an extensive parametric study of 210 CFLDSS tubular sections at elevated temperatures (up to 950 °C) was performed. The appropriateness of the web crippling design rules in the current international specifications and literature was examined by comparing their ultimate strength predictions with those obtained from the numerical parametric study. During the calculation, the material properties at room (ambient) temperature condition were substituted by those at elevated temperatures. It was found that the predictions by the North American Specification were generally unconservative and not reliable, while the European Code provided reliable but generally very conservative predictions. New design method is proposed, including a new equation and the modified Direct Strength Method, for the web crippling of CFLDSS tubular sections at elevated temperatures under the loading conditions of IOF, ITF and IL. The assessment indicated that the predictions by using the new method are generally conservative and reliable.en_US
dcterms.accessRightsembargoed accessen_US
dcterms.bibliographicCitationJournal of constructional steel research, July 2021, v. 182, 106681en_US
dcterms.isPartOfJournal of constructional steel researchen_US
dcterms.issued2021-07-
dc.identifier.scopus2-s2.0-85103985412-
dc.identifier.eissn1873-5983en_US
dc.identifier.artn106681en_US
dc.description.validate202105 bcwhen_US
dc.description.oaNot applicableen_US
dc.identifier.FolderNumbera0870-n01-
dc.identifier.SubFormID2085-
dc.description.fundingSourceSelf-fundeden_US
dc.description.pubStatusPublisheden_US
dc.date.embargo2023.07.31en_US
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