Postbuckling strength of slender elliptical hollow sections in compression
Conference paper
McCann, F (2016). Postbuckling strength of slender elliptical hollow sections in compression. Proceedings of 6th International Conference on Structural Engineering Mechanics and Computation. Cape Town 05 - 07 Sep 2016 https://doi.org/10.1201/9781315641645-116
Authors | McCann, F |
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Type | Conference paper |
Abstract | Numerical analysis of the local buckling behaviour and ultimate cross-sectional strength of tubular elliptical profiles in compression has been performed. After validating the model against previous experimental results, a parametric study comprising a total of 270 elliptical sections was conducted in order to examine the influence of cross-section aspect ratio, geometric imperfections and local slendernesses. The obtained ultimate capacities, load–deformation responses and failure modes are discussed. It was found that for lower cross-section aspect ratios the behaviour of The Elliptical Hollow Sections (EHS) was similar to that of cylindrical shells across a number of metrics; as the aspect ratio increased, more plate-like stable postbuckling behaviour was observed. A design method has been proposed for Class 4 EHS members that reflects the reduction in capacity due to local buckling with increasing slenderness, but also recognises the improved postbuckling stability with increasing aspect ratio. |
Year | 2016 |
Digital Object Identifier (DOI) | https://doi.org/10.1201/9781315641645-116 |
Accepted author manuscript | License File Access Level Open |
Publication dates | |
05 Sep 2016 | |
Publication process dates | |
Deposited | 12 Jun 2017 |
Accepted | 05 Sep 2016 |
https://openresearch.lsbu.ac.uk/item/87268
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Accepted author manuscript
2016 McCann Chang Gardner Silvestre SEMC - postbuckling slender EHS in compression.pdf | ||
License: CC BY 4.0 | ||
File access level: Open |
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