Failure assessment of cracked uni-planar square hollow section T-, Y- and K-joints using the new BS 7910 : 2013+A1:2015

Sukumara Pillai, Vipin and Kolios, Athanasios and Lie, Seng Tjhen (2018) Failure assessment of cracked uni-planar square hollow section T-, Y- and K-joints using the new BS 7910 : 2013+A1:2015. Archive of Applied Mechanics. pp. 1-11. ISSN 0939-1533 (https://doi.org/10.1007/s00419-018-1423-5)

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Abstract

This paper covers the validation of standard safety assessment procedure in the new BS 7910:2013+A1:2015 for cracked uni-planar square hollow section (SHS) T-, Y- and K-joints using the finite element analyses. The procedure is based on the failure assessment diagram (FAD) method. A completely new and robust finite element mesh generator is developed, and it is validated using the full-scale experimental test results. FAD curves are constructed using the elastic J-integral ((Formula presented.)), the elastic-plastic J-integral ((Formula presented.)) and the plastic collapse load ((Formula presented.)) values calculated using the 3D cracked models of the joints. The results reveal that the standard Option 1 FAD curve of the new BS code is not always safe in assessing the safety and integrity of cracked uni-planar SHS joints. Therefore, a penalty factor of 1.2 for plastic collapse load is recommended to move all the constructed Option 3 FAD curves above the standard Option 1 curve. The new Option 3 FAD curves are found to generate optimal solutions for cracked uni-planar SHS T-, Y- and K-joints.

ORCID iDs

Sukumara Pillai, Vipin, Kolios, Athanasios ORCID logoORCID: https://orcid.org/0000-0001-6711-641X and Lie, Seng Tjhen;
  • Item type:Article
    ID code:65000
    Dates:
    Date
    Event
    6 July 2018
    Published
    6 July 2018
    Published Online
    30 June 2018
    Accepted
    Keywords:failure assessment diagram, finite element analysis, square hollow section joints, surface crack, Mechanical engineering and machinery, Mechanical Engineering
    Subjects:Technology > Mechanical engineering and machinery
    Department:University of Strathclyde > University of Strathclyde
    Depositing user: Pure Administrator
    Date deposited:02 Aug 2018 13:31
    Last modified:09 Apr 2022 02:31
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/65000
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