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A unified solution for various boundary conditions for the coupled flexural-torsional instability of closed thin-walled beam-columns

DSpace at IIT Bombay

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Title A unified solution for various boundary conditions for the coupled flexural-torsional instability of closed thin-walled beam-columns
 
Creator JOSHI, ASHOK
SURYANARAYAN, S
 
Subject columns
stability
mathematical techniques
boundary value problems
 
Description The problem of coupled flexural-torsional instability of closed thin-walled beam-columns under the combined action of axial loads and equal end moments is studied numerically. The characteristic equations for stability are obtained and the load interaction curves and mode shape are plotted for various boundary conditions. From a study of the numerical results and the characteristic equations, equivalent load and geometry parameters are defined. These yield a single solution common for all boundary conditions for the load interaction curve and the mode shape. The effect of various boundary conditions and mode numbers is manifest only in the value of an eigen coefficient independent of the loads which is used in defining the equivalent parameters. The case of lateral instability within the elastic limit is also examined and it is shown that even when tensile axial loads are present elastic lateral instability may occur.
 
Publisher Elsevier
 
Date 2009-02-21T11:35:23Z
2011-11-25T17:26:59Z
2011-12-26T13:06:20Z
2011-12-27T05:54:09Z
2009-02-21T11:35:23Z
2011-11-25T17:26:59Z
2011-12-26T13:06:20Z
2011-12-27T05:54:09Z
1984
 
Type Article
 
Identifier International Journal of Solids and Structures 20(2), 167-178
0020-7683
http://dx.doi.org/10.1016/0020-7683(84)90007-6
http://hdl.handle.net/10054/746
http://dspace.library.iitb.ac.in/xmlui/handle/10054/746
 
Language en