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Sensors 2010, 10(1), 719-733;

Deflection of Cross-Ply Composite Laminates Induced by Piezoelectric Actuators

Department of Mechanical Engineering, Yuan-Ze University, Chung-Li, Taiwan
Author to whom correspondence should be addressed.
Received: 7 December 2009 / Revised: 4 January 2010 / Accepted: 18 January 2010 / Published: 20 January 2010
(This article belongs to the Special Issue Advances in Actuators)
PDF [593 KB, uploaded 21 June 2014]


The coupling effects between the mechanical and electric properties of piezoelectric materials have drawn significant attention for their potential applications as sensors and actuators. In this investigation, two piezoelectric actuators are symmetrically surface bonded on a cross-ply composite laminate. Electric voltages with the same amplitude and opposite sign are applied to the two symmetric piezoelectric actuators, resulting in the bending effect on the laminated plate. The bending moment is derived by using the classical laminate theory and piezoelectricity. The analytical solution of the flexural displacement of the simply supported composite plate subjected to the bending moment is solved by using the plate theory. The analytical solution is compared with the finite element solution to show the validation of present approach. The effects of the size and location of the piezoelectric actuators on the response of the composite laminate are presented through a parametric study. A simple model incorporating the classical laminate theory and plate theory is presented to predict the deformed shape of the simply supported laminate plate. View Full-Text
Keywords: piezoelectric actuator; bending moment; plate theory; flexural displacement piezoelectric actuator; bending moment; plate theory; flexural displacement
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Her, S.-C.; Lin, C.-S. Deflection of Cross-Ply Composite Laminates Induced by Piezoelectric Actuators. Sensors 2010, 10, 719-733.

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