Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 4, Number 4, July 1996 , pages 397-413
DOI: https://doi.org/10.12989/sem.1996.4.4.397
 


On the post-buckling behaviour of plates under stress gradient
Bedair OK

 
Abstract
    In this paper the elastic post-buckling behaviour of plates under non-uniform compressive edge stress is investigated. The compatibility differential equations is first solved analytically and then an approximate solution of the equilibrium equation is obtained using the Galerkin method. Explicit expressions are derived for the load-deflection, ultimate strength and membrane stress distributions. Analytical effective width formulations, based on the characteristics of the stress field of the buckled plate, are proposed for this general loading condition. The predicted load-deflection expression is compared with independent test results. Results are also presented detailing the load-deflection behaviour and stress distribution for various aspect ratios.
 
Key Words
    plate post-buckling, stiffened plate, effective width, ultimate strength of plates, non-linear analysis of plates
 
Address
Bedair OK, CONCORDIA UNIV,DEPT CIVIL ENGN,1455 MAISONNEUVE BLVD W,MONTREAL,PQ H3G 1M8,CANADA
 

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