Mode interaction in thin-walled I-section struts with semi-rigid flange-web joints
File(s)paper_revised.pdf (6.94 MB)
Accepted version
Author(s)
Bai, L
Wadee, MA
Type
Journal Article
Abstract
A recently developed variational model that describes the nonlinear interaction between the global and local buckling of a thin-walled I-section strut under pure compression is extended to include semi-rigid flange--web connections. A formulation combining the Rayleigh--Ritz method and continuous displacement functions is used to derive a system of differential and integral equilibrium equations for the structural component. Cellular buckling, observed in the case where the web is assumed to provide no more than a simple support to the flanges, is found to be rapidly eroded by increasing the connection rigidity, although the local buckling wavelength still reduces as the post-buckling deformation is increased. The model is validated using finite element analysis; the results compare very well particularly when a high rigidity between the section web and flanges is simulated.
Date Issued
2015-03-01
Citation
International Journal of Non-Linear Mechanics, 2015, 69, pp.71-83
ISSN
0020-7462
Start Page
71
End Page
83
Journal / Book Title
International Journal of Non-Linear Mechanics
Volume
69
Copyright Statement
© 2014 Elsevier Ltd. All rights reserved. NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Non-linear Mechanics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS, Vol.: 69, (2015) DOI: 10.1016/j.ijnonlinmec.2014.11.023
Description
16.01.15 KB. Ok to add accepted version, subject to 12 months embargo
Publication Status
Published