Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1481
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dc.contributor.authorTaştan, A.-
dc.contributor.authorAcar, Erdem-
dc.contributor.authorGüler, Mehmet Ali-
dc.contributor.authorKılınçkaya, U.-
dc.date.accessioned2019-06-26T08:07:01Z
dc.date.available2019-06-26T08:07:01Z
dc.date.issued2016-10
dc.identifier.citationTaştan, A., Acar, E., Güler, M. A., & Kılınçkaya, Ü. (2016). Optimum crashworthiness design of tapered thin-walled tubes with lateral circular cutouts. Thin-Walled Structures, 107, 543-553.en_US
dc.identifier.issn0263-8231
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0263823116304529-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/1481-
dc.description.abstractIn this paper, the effects of introducing lateral circular cutouts on crash performances of tapered thin-walled tubes are explored within a simulation-driven surrogate-based multi-objective optimization framework. The crash performances of the tubes are measured using the crush force efficiency (CFE) and the specific energy absorption (SEA) criteria, which are computed using the finite element analysis code LS-DYNA. Surrogate-based optimization approach is followed to find out that optimum values of the wall thickness, the taper angle, the cutout diameter and the numbers of cutouts in horizontal and vertical directions to maximize CFE and SEA. Four different surrogate models are used: polynomial response surfaces, radial basis functions, and Kriging models with zeroth- and first-order trend models. It is found that the optimum CFE of the tubes with lateral circular cutouts is 27.4% larger than the optimum CFE of the tubes without cutouts. It is also found that the optimum SEA of the tubes with lateral circular cutouts is 26.4% larger than the optimum SEA of the tubes without cutouts. It is observed that the optimum SEA design has slightly reduced wall thickness, significantly reduced taper angle, significantly increased cutout diameter, increased number of cutouts in horizontal direction and slightly reduced number of cutouts in vertical direction compared to the optimum CFE design. In addition, multi-objective optimization of the tubes is performed by maximizing a composite objective function that provides a compromise between CFE and SEA. It is found that the CFE dominates the behavior of composite objective function. (C) 2016 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipThis study is funded by The Scientific and Research Council of Turkey (TUBITAK) under Grant MAG-115M025.
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofThin-Walled Structuresen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCrush force efficiencyen_US
dc.subjectSpecific energy absorptionen_US
dc.subjectFinite element analysisen_US
dc.subjectLS-DYNAen_US
dc.subjectSurrogate modelsen_US
dc.subjectMulti-objective optimizationen_US
dc.subjectCircular cutoutsen_US
dc.subjectThin-walled tubesen_US
dc.titleOptimum crashworthiness design of tapered thin-walled tubes with lateral circular cutoutsen_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Mechanical Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Makine Mühendisliği Bölümütr_TR
dc.identifier.volume107
dc.identifier.startpage543
dc.identifier.endpage553
dc.relation.tubitakScientific and Research Council of Turkey (TUBITAK) [MAG-115M025]en_US
dc.authorid0000-0002-3661-5563-
dc.authorid0000-0002-1159-556X-
dc.identifier.wosWOS:000383813200044en_US
dc.identifier.scopus2-s2.0-84979609809en_US
dc.institutionauthorGüler, Mehmet Ali-
dc.institutionauthorAcar, Erdem-
dc.identifier.doi10.1016/j.tws.2016.07.018-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ1-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairetypeArticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
crisitem.author.dept02.7. Department of Mechanical Engineering-
crisitem.author.dept02.7. Department of Mechanical Engineering-
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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