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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 109
PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON SOFT COMPUTING TECHNOLOGY IN CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING
Edited by: Y. Tsompanakis, J. Kruis and B.H.V. Topping
Paper 41

Design and Testing of Fuzzy Controllers on Smart Structures in the Presence of Delamination

G.K. Tairidis1, G.A. Foutsitzi2, P. Koutsianitis1, G. Drosopoulos1 and G.E. Stavroulakis1

1Department of Production Engineering and Management, Institute of Computational Mechanics and Optimization, Technical University of Crete, Chania, Greece
2Department of Accounting and Finance, Technological Educational Institution of Epirus, Psathaki, Preveza, Greece

Full Bibliographic Reference for this paper
G.K. Tairidis, G.A. Foutsitzi, P. Koutsianitis, G. Drosopoulos, G.E. Stavroulakis, "Design and Testing of Fuzzy Controllers on Smart Structures in the Presence of Delamination", in Y. Tsompanakis, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fourth International Conference on Soft Computing Technology in Civil, Structural and Environmental Engineering", Civil-Comp Press, Stirlingshire, UK, Paper 41, 2015. doi:10.4203/ccp.109.41
Keywords: smart structures, piezoelectric composites, fuzzy control, MATLAB, delamination.

Summary
In this paper a smart composite plate with delamination to the piezoelectric layers is considered. First a nonlinear damage model is introduced so that stress and strain, including delamination, can be calculated. For the design of fuzzy controllers, three different cases of delamination are investigated. Namely, the cases studied include 10, 50 and 90 percent delamination of the piezoelectric material. The controller was initially designed for non-delaminated structures. However, the simulation shows that this type of control provides satisfactory results for delaminated structures as well, even in structures with high percentage of delamination. The models and the controller were built within the MATLAB environment.

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