Design optimization of spot-welded plates for maximum fatigue life

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dc.authoridSonmez, Fazil O./0000-0003-4065-8862
dc.contributor.authorErtas, Ahmet H.
dc.contributor.authorSonmez, Fazil O.
dc.date.accessioned2024-09-29T15:57:10Z
dc.date.available2024-09-29T15:57:10Z
dc.date.issued2011
dc.departmentKarabük Üniversitesien_US
dc.description.abstractResistance spot welding is the most preferred and widely used method for joining metal sheets in automotive and many other industrial assembly operations. Spot-welded joints are usually the weakest parts of structures leading to fatigue failure under fluctuating loads. Increasing the fatigue strength of the joints through geometrical changes will also increase the overall integrity of the whole structure. In this study, a methodology is proposed to find the optimum locations of spot welds and the optimum overlapping length of the joined plates for maximum fatigue life. Minimum weld-to-weld and weld-to-edge distances recommended by the industry are considered as side constraints. The total strain life equation is used to predict the fatigue life. In order to use this model, the strain state in the structure developed under cyclic loading is required. For this purpose, a nonlinear finite element analysis is carried out, taking into account residual stresses due to localized plastic deformations around the spots. Nelder-Mead (Sequential Simplex) is employed as the search algorithm in the optimization procedure. A number of problems are solved to demonstrate the effectiveness of the proposed method. (C) 2010 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipTUBITAK, The Scientific and Technological Research Council of Turkey [106M301]en_US
dc.description.sponsorshipThis paper is based on the work supported by TUBITAK, The Scientific and Technological Research Council of Turkey, with the code number 106M301.en_US
dc.identifier.doi10.1016/j.finel.2010.11.003
dc.identifier.endpage423en_US
dc.identifier.issn0168-874X
dc.identifier.issn1872-6925
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-78650779482en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage413en_US
dc.identifier.urihttps://doi.org/10.1016/j.finel.2010.11.003
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4649
dc.identifier.volume47en_US
dc.identifier.wosWOS:000286973200011en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofFinite Elements in Analysis and Designen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectSpot welden_US
dc.subjectStructural Optimizationen_US
dc.subjectFatigue life predictionen_US
dc.subjectFinite element analysisen_US
dc.subjectNelder-Meaden_US
dc.titleDesign optimization of spot-welded plates for maximum fatigue lifeen_US
dc.typeArticleen_US

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