Table of Contents
ISRN Mechanical Engineering
Volume 2011 (2011), Article ID 362030, 11 pages
http://dx.doi.org/10.5402/2011/362030
Research Article

Thermal Buckling of Piezoelectric Composite Beam

1ME Department, Islamic Azad Universit, South Tehran Branch, Tehran, Iran
2ME Department, Amirkabir University of Technology, Tehran, Iran
3Academy of Sciences, ME Department, Amirkabir University of Technology, Tehran, Iran

Received 12 January 2011; Accepted 6 February 2011

Academic Editors: A. Combescure, A. Postelnicu, A. Z. Sahin, K. Yasuda, and D. Zhou

Copyright © 2011 S. Yazdani 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.

Abstract

Buckling analysis of laminated composite beams with piezoelectric layers subjected to thermal loading and constant voltage is studied. The material properties are assumed to be homogeneous in any layer through the beam thickness. The first-order beam theory and nonlinear strain-displacement relation are used to obtain the governing equations of the composite beam. The beam is assumed under uniform type of thermal loading and various types of boundary conditions. For each case of boundary conditions, closed-form solutions are obtained. The effects of the applied actuator voltage, beam geometry, and boundary conditions on the buckling temperature are investigated.