Aspect Ratio of Slender Web and Postbuckling Behaviour
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Martin Psotny
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| Transactions of the VSB - Technical University of Ostrava, Civil Engineering Series |
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2012, Volume 12, Issue 2, Pages 153-160
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Doi: 10.2478/v10160-012-0029-z
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Postbuckling analysis of slender web loaded in compression is presented. The non-linear FEM equations are derived from the variational principle of minimum of total potential energy. To obtain the non-linear equilibrium paths, Newton-Raphson iteration algorithm is used. Peculiarities of the effect of the initial imperfections on load-deflection paths are investigated with respect to aspect ratio of the web. Special attention is focused on the postbuckling mode of the web.
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