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- W2912311056 abstract "Abstract This paper is a companion to (Khezri and Rasmussen, 2019) [1], where the generalised strain energy-based method for the modal decomposition of buckled shapes of thin-walled members is introduced. The paper presents the application of the proposed method for full modal decomposition to various thin-walled members. A series of numerical examples are presented in order to verify the robustness and capabilities of the proposed modal finite strip method (mFSM). In addition, the problem of global torsional modes in sections with closed cell(s) is revisited in this paper. In sections with closed loops, the classical global torsion modes does not exist due to presence of in-plane shear strains. In the context of the proposed energy-based method, a modified global torsion buckling mode is derived that allows for the occurance of shear in closed cell. The pure global buckling curves obtained incoporating the modified global torsion base vectors are compared with the generalised constrained FSM (cFSM) and generalised beam theory (GBT) results. It is shown that the proposed modal decomposition method is capable to accurately capture the modal behaviour of thin-walled sections." @default.
- W2912311056 created "2019-02-21" @default.
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- W2912311056 date "2019-05-01" @default.
- W2912311056 modified "2023-10-18" @default.
- W2912311056 title "An energy-based approach to buckling modal decomposition of thin-walled members with arbitrary cross-sections, Part 2: Modified global torsion modes, examples" @default.
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- W2912311056 doi "https://doi.org/10.1016/j.tws.2019.01.043" @default.
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