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|Title:||Applicability of the Southwell plot to shear deformable columns||Authors:||Koh, Chan Ghee
Kelly, James M.
|Issue Date:||Sep-1989||Citation:||Koh, Chan Ghee,Kelly, James M. (1989-09). Applicability of the Southwell plot to shear deformable columns. Journal of Testing and Evaluation 17 (5) : 287-291. ScholarBank@NUS Repository.||Abstract:||It is shown by mode superposition that the convergence of the series solution to the buckling mode is slow, since there are two critical loads of the same order associated with the first mode shape for rotation of the cross section. More important, the Southwell plot is not linear even when only one mode shape (corresponding to the lowest critical load in compression) is considered. An example of numerical simulation demonstrates that linearly fitting the Southwell plot can lead to significant errors in the prediction of the buckling load. The accuracy of buckling load determined by the Southwell method for typical elastomeric isolation bearings is also discussed.||Source Title:||Journal of Testing and Evaluation||URI:||http://scholarbank.nus.edu.sg/handle/10635/65158||ISSN:||00903973|
|Appears in Collections:||Staff Publications|
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