Thermal Buckling of Piezoelectric Functionally Graded Material Beams |
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| Authors: | Y Kiani S Taheri |
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| Affiliation: | 1. Department of Mechanical Engineering , Amirkabir University of Technology , Tehran , Iran;2. Department of Mechanical Engineering , Islamic Azad University, South Tehran Branch , Tehran , Iran |
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| Abstract: | Buckling analysis of functionally graded material (FGM) beams with surface-bonded piezoelectric layers which are subjected to both thermal loading and constant voltage is studied. The material nonhomogeneous properties are assumed to vary smoothly by distribution of power law through the beam thickness. The Euler-Bernoulli beam theory and nonlinear strain-displacement relation are used to obtain the governing equations of piezoelectric FGM beam. Beam is assumed under three types of thermal loading and various types of boundary conditions. For each case of thermal loading and boundary conditions, closed-form solutions are obtained. The effects of the applied actuator voltage, beam geometry, boundary conditions, and power law index of functionally graded material on the buckling temperature are investigated. |
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| Keywords: | Euler-Bernoulli beam theory Functionally graded materials Piezoelectric layers Thermal buckling |
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