Two-pheromone Ant Colony Optimization to design dispersed laminates for aeronautical structural applications

Authors:  T.A. Sebaey, C.S. Lopes, N. Blanco, J.A. Mayugo, J. Costa

Abstract: 
The objective of the present study is to find out the effect of using non-conventional fiber orientations (orientations not limited to 0, ±45 and 90) to improve the composite material response. The Ant Colony Algorithm is used to optimize the stacking sequence for biaxial tension and compression loading condition under strength constraints. Moreover, a modified algorithm (two-pheromone algorithm) is used to design a fully dispersed laminate. Results show that dispersed laminates can improve the critical buckling load by up to 8% for the biaxial compression loading case. With respect to the biaxial tensile loading condition, the results show that the matrix cracking failure index can be decreased up to 100% and the fiber tensile failure index can be decreased by 40% using the two pheromone formulation.

Keywords:
Ant colony
Two-pheromone matrices
Multi-objective optimization
Dispersed laminates
Strength constraints
Biaxial loading

Published in: Advances Engineering Software  (Volumes 66, December 2013)

Publisher: Elsevier

ISSN Information: 0965-9978           

Two-pheromone Ant Colony Optimization to design dispersed laminates for aeronautical structural applications

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