Postbuckling analysis of stiffened Laminated Curved Panels
Publication: Journal of Engineering Mechanics
Volume 116, Issue 10
Abstract
An analytical solution is presented for the postbuckling behavior of composite laminated stiffened curved panels, whether curved in a longitudinal or lateral direction (not both). The nonlinear equations for the model are based on the Von Karman kinematic approach and consist of equilibrium equations for curved plate, continuity requirements, and boundary conditions. These equations are expressed in terms of the out‐of‐plane displacement and Airy stress functions. The characteristic behavior in the pre‐ and postlimit positions is exploited by using an eigenfunction series in the longitudinal direction (direction of the stiffeners) and a finite difference scheme in the other direction. A modified Galerkin procedure is used to minimize errors involved in the truncated series and the nonfulfillment of the boundary conditions. The solution obtained through this procedure proved to be very efficient compared to general purpose finite element codes, especially when mode interactions and parametric studies are involved.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 116 • Issue 10 • October 1990
Pages: 2223 - 2236
Copyright
Copyright © 1990 ASCE.
History
Published online: Oct 1, 1990
Published in print: Oct 1990
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