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|Title:||Should load remain constant when a thin-walled open-profile column buckles?|
|Authors:||Alwis, W.A.M. |
|Citation:||Alwis, W.A.M.,Wang, C.M. (1994-11). Should load remain constant when a thin-walled open-profile column buckles?. International Journal of Solids and Structures 31 (21) : 2945-2950. ScholarBank@NUS Repository.|
|Abstract:||This paper addresses the fundamental question of whether the applied load should necessarily be assumed to remain constant for bifurcation buckling analysis of thin-walled open-profile columns via the work-energy approach. The constant load condition has been recently used as a fundamental requirement for a valid analysis by Goto and Chen (1989, Int. J. Solids Structures 25, 621-634) to dispute a theory proposed by Ojalvo (1989, ASME J. Appl. Mech. 56, 633-638). This paper establishes that neither constant load nor constant distance need be insisted upon for a valid analysis. It is permissible to assume either constant load or constant distance (or any other compatible configuration with second order changes in loads and distance) for a valid analysis. It is essential to ensure that the appropriate strain energy and work expressions are adopted. © 1994.|
|Source Title:||International Journal of Solids and Structures|
|Appears in Collections:||Staff Publications|
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