Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/167137

Title

Elasto-plastic buckling of integrally stiffened panels (ISP): an optimization approach for the design of cross-section profiles

Author(s)

Caseiro, J. F.;  Valente, R. A. F.;  Andrade-Campos, A.;  Yoon, J. W.

Abstract

In this work, three optimization algorithms-Levenberg-Marquardt, simulated annealing and a newly developed and proposed hybrid differential evolution particle swarm optimization-are considered in the shape optimizations of cross-sections of integrally stiffened panels (ISP) for aeronautical applications, when subjected to buckling deformation modes within the elasto-plastic range. The proposed algorithm is shown to be robust and more effective, in the tested examples, than conventional optimization algorithms, leading to optimum designs of ISP cross-sections for a pre-defined buckling load-carrying capacity, combined with elasto-plastic nonlinear behaviors.

Publication type

Journal article

Research centre

Swinburne University of Technology., Faculty of Engineering and Industrial Sciences

Source

Thin-Walled Structures, Vol. 49, no. 7 (Jul 2011), pp. 864-873

Publication year

2011

FOR Code(s)

0901 Aerospace Engineering;  0905 Civil Engineering;  0913 Mechanical Engineering

Keyword(s)

Elasto-plastic buckling;  Integrally stiffened panels;  Optimization

Publisher

Elsevier

ISSN

0263-8231

Publisher URL

http://dx.doi.org/10.1016/j.tws.2011.02.011

Copyright

Copyright © 2011 Elsevier Ltd. All rights reserved.

Peer reviewed