New reduction factor for Cracked Square hollow section K-joints

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dc.contributor.authorVipin, Sukumara Pillai
dc.contributor.authorKolios, Athanasios
dc.contributor.authorLie, S. T.
dc.contributor.authorWang, L.
dc.date.accessioned2018-02-20T11:11:26Z
dc.date.available2018-02-20T11:11:26Z
dc.date.issued2018-02-11
dc.description.abstractCracks are commonly observed at the hot spot stress location of tubular joints and it can be due to fatigue, accidental damage or corrosion. As a consequence, the plastic collapse load (Pc) of the tubular joints is reduced, and hence it is necessary to produce design guidance which can safely be used to estimate the static residual strength of cracked tubular structures in practice. This paper proposes a new expression for determining the reduction factor (FAR) of cracked square hollow section (SHS) K-joints. A completely new and robust finite element mesh generator which is validated using the full scale experimental test results is used for the parametric study to propose the new FAR expressions for cracked SHS K-joints. The crack area and the brace to chord width ratio (β) are shown to have the most profound effect on the Pc load of cracked SHS K-joints. For a given value of crack area, the variation of the FAR values is up to 3.6% for different values of β. Furthermore, the FAR values calculated using the existing equation given in the latest BS 7910:2013 + A1:2015 for circular hollow section (CHS) joints are revealed to be conservative up to 23.5%.en_UK
dc.identifier.citationVipin SP, Kolios A, Lie ST, Wang L, (2018) New reduction factor for Cracked Square hollow section K-joints, Journal of Constructional Steel Research, Volume 144, May 2018, pp. 166-175en_UK
dc.identifier.issn0143-974X
dc.identifier.urihttps://doi.org/10.1016/j.jcsr.2018.01.024
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/13014
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectCracksen_UK
dc.subjectFinite element analysisen_UK
dc.subjectSquare hollow section K-jointen_UK
dc.subjectPlastic collapse loaden_UK
dc.subjectReduction factoren_UK
dc.titleNew reduction factor for Cracked Square hollow section K-jointsen_UK
dc.typeArticleen_UK

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