Abstract
The local-plate, distortional and global buckling/vibration behaviour of thin-walled steel channel members subjected to compression is studied. This investigation is carried out by means of a very recently developed method based on the Generalized Beam Theory (GBT), capable to decompose the general buckling/vibration modes provided by the shell finite element analysis (FEA) of an isotropic thin-walled member, into pure deformation modes of global, distorsional or local nature. The contribution of each pure deformation mode can be calculated, allowing a better understanding of the variation of the column fundamental frequency and vibration mode nature/shape with its axial compression level. There are no restrictions regarding the element cross-sectional shape and, quite recently discovered, boundary conditions.
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Nedelcu, M., Chira, N., Cucu, H.L. (2013). Vibration Mode Decomposition from Finite Element Analysis of Axially Compressed Thin-Walled Members. In: Jármai, K., Farkas, J. (eds) Design, Fabrication and Economy of Metal Structures. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36691-8_21
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DOI: https://doi.org/10.1007/978-3-642-36691-8_21
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-36690-1
Online ISBN: 978-3-642-36691-8
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