Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 4, Number 4, July 1996 , pages 451-460
DOI: https://doi.org/10.12989/sem.1996.4.4.451
 


Buckling of cylindrical shells under external pressure proposition of a new shape of self-stiffened shell
Araar M, Julien JF

 
Abstract
    We propose a new shape of cylindrical shell formed by multiples vaults which gives a self-stiffening against buckling. By an experimental and numerical study of cylindrical shells with a repeated defect, on the circumferential direction made only of outside oriented wave-defects, we show that multiple vault cylindrical shells can have a good behaviour in buckling. An optimal behaviour is obtained by optimization of the vaults number, with conduces to a special multiple vault cylindrical shell named \'\'ASTER shell\'\'.
 
Key Words
    cylindrical shell, external pressure, buckling, self-stiffening, boundary conditions, geometric imperfection
 
Address
Araar M, UNIV ANNABA,INST CIVIL ENGN,BP 12,ANNABA,ALGERIA
INSA,CONCRETE & STRUCT LAB,F-69621 VILLEURBANNE,FRANCE
 

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