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Mathematical Problems in Engineering
Volume 2008, Article ID 786520, 15 pages
http://dx.doi.org/10.1155/2008/786520
Research Article

Constrained and Unconstrained Optimization Formulations for Structural Elements in Unilateral Contact with an Elastic Foundation

1Department of Civil Engineering, School of Mines, Federal University of Ouro Preto, Campus Universitário, Morro do Cruzeiro, Ouro Preto, MG 35400-000, Brazil
2Department of Civil Engineering, Catholic University, PUC-Rio, Rua Marquês de São Vicente 225, Gávea, Rio de Janeiro, RJ 22451-900, Brazil

Received 9 February 2007; Accepted 18 October 2007

Academic Editor: J. Richard Barber

Copyright © 2008 Ricardo A. M. Silveira et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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