Volume 1, Issue 4 (12-2011)
2011, 1(4): 571-595 |
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Kaveh A, Hassani M. ANT COLONY ALGORITHMS FOR NONLINEAR ANALYSIS AND OPTIMAL DESIGN OF STRUCTURES . International Journal of Optimization in Civil Engineering 2011; 1 (4) :571-595
URL: http://ijoce.iust.ac.ir/article-1-64-en.html
URL: http://ijoce.iust.ac.ir/article-1-64-en.html
Abstract: (21439 Views)
In this paper nonlinear analysis of structures are performed considering material and geometric nonlinearity using force method and energy concepts. For this purpose, the complementary energy of the structure is minimized using ant colony algorithms. Considering the energy term next to the weight of the structure, optimal design of structures is performed. The first part of this paper contains the formulation of the complementary energy of truss and frame structures for the purpose of linear analysis. In the second part material and geometric nonlinearity of structure is considered using Ramberg-Osgood relationships. In the last part optimal simultaneous analysis and design of structure is studied. In each part, the efficiency of the methods is illustrated by means simple examples.
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