Thermal buckling and free vibration of thermo-electro-mechanically loaded piezoelectric FG-CNTRC beams

Wu, H. L., Kitipornchai, S. and Yang, J. (2017). Thermal buckling and free vibration of thermo-electro-mechanically loaded piezoelectric FG-CNTRC beams. In: Hong Hao and Chunwei Zhang, Mechanics of Structure and Materials: Advancements and Challenges. 24th Australasian Conference on the Mechanics of Structures and Materials, Perth, WA, Australia, (1783-1788). 6-9 December 2016.

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Name Description MIMEType Size Downloads
Author Wu, H. L.
Kitipornchai, S.
Yang, J.
Title of paper Thermal buckling and free vibration of thermo-electro-mechanically loaded piezoelectric FG-CNTRC beams
Conference name 24th Australasian Conference on the Mechanics of Structures and Materials
Conference location Perth, WA, Australia
Conference dates 6-9 December 2016
Convener ACMSM
Proceedings title Mechanics of Structure and Materials: Advancements and Challenges
Place of Publication CRC Press
Publisher Boca Raton, FL, United States
Publication Year 2017
Sub-type Fully published paper
Open Access Status Not yet assessed
ISBN 9781138029934
9781351850216
Editor Hong Hao
Chunwei Zhang
Start page 1783
End page 1788
Total pages 6
Collection year 2018
Language eng
Abstract/Summary This paper is concerned with thermal buckling and free vibration analyses of functionally graded carbon nanotube-reinforced composite (FG-CNTRC) beams that are integrated with two surface-bonded piezoelectric layers and subjected to a combined loading of a uniform temperature rise, a constant actuator voltage and an axial force. The material properties of FG-CNTRCs are assumed to vary continuously in the thickness direction and temperature-dependent. Within the framework of Timoshenko beam theory, the governing equations are derived by applying Hamilton’s principle and then solved by using the differential quadrature method to obtain the critical buckling temperature and natural frequency of piezoelectric FG-CNTRC beams. The effects of carbon nanotube volume fraction, beam geometry, boundary condition, thermo-electro-mechanical load on the thermal buckling and free vibration of piezoelectric FG-CNTRC beams are discussed in detail by conducting parametric studies. Numerical results for piezoelectric composite beams reinforced by uniformly distributed carbon nanotubes are also presented for direct comparison. It is found that both the buckling temperature and natural frequency of piezoelectric FG-CNTRC beams are increased by applying a negative voltage and a tensile axial load, but decrease when subjected to a compressive axial load.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collections: School of Civil Engineering Publications
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Created: Tue, 07 Mar 2017, 10:41:44 EST by Clare Nelson on behalf of School of Mechanical and Mining Engineering