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  • Numerical investigation of cold-formed stainless steel lipped channels with longitudinal stiffeners subjected to shear

    Author(s)
    Dissanayake, DMMP
    Poologanathan, K
    Gunalan, S
    Tsavdaridis, KD
    Wanniarachchi, KS
    Nagaratnam, B
    Griffith University Author(s)
    Gunalan, Shanmuganathan (Guna)
    Year published
    2021
    Metadata
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    Abstract
    The shear response of the cold-formed stainless steel lipped channel sections with longitudinal stiffeners has not been investigated adequately in the past. Therefore, this paper presents the details of numerical investigations conducted to study the shear behaviour of longitudinally stiffened cold-formed stainless steel lipped channel sections. Following a validation study of the finite element models of lipped channel sections, the effect of return lips and web stiffeners on the shear response of lipped channel sections was examined through comprehensive numerical parametric studies. In addition, numerical investigations ...
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    The shear response of the cold-formed stainless steel lipped channel sections with longitudinal stiffeners has not been investigated adequately in the past. Therefore, this paper presents the details of numerical investigations conducted to study the shear behaviour of longitudinally stiffened cold-formed stainless steel lipped channel sections. Following a validation study of the finite element models of lipped channel sections, the effect of return lips and web stiffeners on the shear response of lipped channel sections was examined through comprehensive numerical parametric studies. In addition, numerical investigations were conducted to study the elastic shear buckling response of the sections and the shear buckling coefficients were back-calculated. It was found that the longitudinal web stiffeners enhance the shear buckling resistance of lipped channel sections considerably with increased stiffener depth. However, the shear capacity increment is not significant compared to plain lipped channel sections. The presence of the web stiffeners is found to be not preventing the out-of-plane buckling of the sections. The evaluation of Eurocode 3 and the direct strength method shear provisions for stainless steel channel sections with longitudinal stiffeners illustrates inaccurate capacity predictions. Therefore, modifications were proposed and comparisons reveal that the proposed provisions enhance the shear resistance predictions with good accuracy over the codified provisions.
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    Journal Title
    Thin-Walled Structures
    Volume
    158
    DOI
    https://doi.org/10.1016/j.tws.2020.107179
    Subject
    Aerospace engineering
    Civil engineering
    Mechanical engineering
    Publication URI
    http://hdl.handle.net/10072/400538
    Collection
    • Journal articles

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