Abstract
A theoretical investigation into the interactive buckling behaviour of thin- walled orthotropic plain channel section columns is presented. A semi-energy method of analysis is used and the effects of local buckling in all elements of the section are taken into consideration. Changes in the locally buckled form after buckling are taken into account in an approximate manner and the effects of local and overall imperfections are also considered. In the paper particular attention is paid to the analysis of columns with coincident local and Euler buckling loads, since these columns exhibit unstable post-buckling equilibrium behaviour and due to this are highly sensitive to geometrical imperfections.
Results are presented for orthotropic glass fibre reinforced composite columns in the form of non-dimensional graphs. The graphs depict such aspects as flexural stiffness variation at buckling with change in cross- sectional geometry, post-buckling equilibrium behaviour for concentrically and eccentrically loaded columns and the effect of imperfections on the maximum carrying capacity of coincident mode designs.
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© 1981 Applied Science Publishers Ltd
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Upadhya, A.R., Loughlan, J. (1981). The Effect of Mode Interaction in Orthotropic Fibre Reinforced Composite Plain Channel Section Columns. In: Marshall, I.H. (eds) Composite Structures. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-8120-1_24
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DOI: https://doi.org/10.1007/978-94-009-8120-1_24
Publisher Name: Springer, Dordrecht
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