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dc.contributor.authorGilbert, Benoit P
dc.contributor.authorTeh, Lip H
dc.contributor.authorGuan, Hong
dc.date.accessioned2017-05-03T15:53:38Z
dc.date.available2017-05-03T15:53:38Z
dc.date.issued2012
dc.date.modified2013-06-13T23:33:04Z
dc.identifier.issn0263-8231
dc.identifier.doi10.1016/j.tws.2012.06.009
dc.identifier.urihttp://hdl.handle.net/10072/47904
dc.description.abstractFor economical benefits, optimisation of mass-produced structural steel products has been widely researched. The objective is to minimise the quantity of material used without sacrificing the strength and practicality of the structural members. Current research focuses on optimising the main dimensions of conventional cross-sectional shapes but rarely considers discovering new optimum shapes. This paper introduces the concepts of a new optimisation method that enables the cross-section to self-shape to an optimum by using the evolution and adaptation benefits of Genetic Algorithm (GA). The feasibility and the accuracy of the method are verified by implementing it to optimise the section capacity of thin-walled profiles. Specifically, the profiles are optimised against simple parameters, for which analytical solutions are known, namely the optimisation of doubly-symmetric closed profiles. Results show that the cross-section accurately self-shapes to its optimum in a low number of generations. Factors influencing the convergence are presented in this paper. The method is extended to optimisation of cold-formed steel open section columns in the companion paper.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1367207 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.placeUnited Kingdom
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom194
dc.relation.ispartofpageto204
dc.relation.ispartofjournalThin-Walled Structures
dc.relation.ispartofvolume60
dc.rights.retentionY
dc.subject.fieldofresearchAerospace engineering
dc.subject.fieldofresearchCivil engineering
dc.subject.fieldofresearchStructural engineering
dc.subject.fieldofresearchMechanical engineering
dc.subject.fieldofresearchcode4001
dc.subject.fieldofresearchcode4005
dc.subject.fieldofresearchcode400510
dc.subject.fieldofresearchcode4017
dc.titleSelf-shape optimisation principles: Optimisation of section capacity for thin-walled profiles
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Engineering
gro.rights.copyright© 2012 Elsevier B.V. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.date.issued2012
gro.hasfulltextFull Text
gro.griffith.authorGuan, Hong
gro.griffith.authorGilbert, Benoit


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