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International Journal of Steel Structures

Published in:

13-03-2024

Effect of Axial Misalignments in Fillet Welded Cruciform Joint Under Static Loading

Authors: Bikram Paul, Zhiyuan Fang, Krishanu Roy, Hafez Tehari, Michail Karpenko, James B. P. Lim

Published in: International Journal of Steel Structures | Issue 2/2024

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Abstract

This paper presents a numerical study to investigate the effects of axial misalignment for the fillet welded cruciform joints using the traction stress method. A parametric study, involving 100 finite element (FE) models, was conducted with plate thickness and misalignments treated as independent parameters. In the parametric study, different fillet weld leg sizes were chosen based on the minimum criteria specified in the New Zealand standard (NZS 3404.1). Normalized shear traction stresses were calculated for each plate thickness and misalignments at different cut planes through the fillet weld. In each model, the maximum normalized shear stress occurred at an angle of 15° to the loading plate, which represents the critical angle for weld failure. Finally, based on the results of the parametric study, an equation for the multiplication factor was proposed for the cruciform joint to obtain the maximum normalized shear traction stress for different misalignments and weld size. The multiplication factor obtained from the FEA matched well with the multiplication factor predicted by the proposed equation, and reliability analysis was conducted to confirm the accuracy of the proposed equation.

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Title: Effect of Axial Misalignments in Fillet Welded Cruciform Joint Under Static Loading
Authors: Bikram Paul
Zhiyuan Fang
Krishanu Roy
Hafez Tehari
Michail Karpenko
James B. P. Lim
Publication date: 13-03-2024
Publisher: Springer Netherlands
Published in: International Journal of Steel Structures / Issue 2/2024
Print ISSN: 1598-2351
Electronic ISSN: 2093-6311
DOI: https://doi.org/10.1007/s13296-024-00811-0

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