Dynamic analysis of CNT functionally graded piezolaminated structures using third-order shear deformation theory

Mechanics of Advanced Materials and Structures, vol. 31, pp. 5547–5563

Abstract

Piezoelectric Carbon Nanotube Reinforced Functionally Graded (P-CNT-FG) structures have great application potential in aerospace for vibration control. The precise modeling technique for P-CNT-FG plates and shells is a big challenge, especially for moderate thick and thick P-CNT-FG structures. This paper develops a Finite Element (FE) model for P-CNT-FG plates and shells. The FE model is derived by Reddy’s third-order shear deformation theory with consideration of various CNT distribution forms, CNT volume fractions, boundary conditions and arbitrary fiber orientations. Eight-node quadrilateral elements are developed for P-CNT-FG structures with seven mechanical degrees of freedom (DOFs) at each node. The mathematical model is first validated by a simply supported square plate, a cross-ply plate with sinusoidally distributed loading and a CNT plate with PZT layers. Afterwards, vibration and dynamic responses of P-CNT-FG plates have been presented, later the effective of parameters on static and dynamic response of P-CNT-FG smart structures are carried out by the present model.

Authors 5

1. Ting Xue

   Northwestern Polytechnical University

   Affiliation as printed

   School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an, P.R. China

   School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, P.R. China

2. X. S. Qin

   Northwestern Polytechnical University

   Affiliation as printed

   School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an, P.R. China

   School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, P.R. China

3. Zhanxi Wang

   Northwestern Polytechnical University

   Affiliation as printed

   School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an, P.R. China

   School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an, P.R. China

4. Rüdiger Schmidt Aachen Institute of Structural Mechanics and Lightweight Design

   RWTH Aachen University

   Affiliation as printed

   Institute of Structural Mechanics and Lightweight Design, RWTH Aachen University, Aachen, Germany

5. Shunqi Zhang corresponding

   Shanghai University

   Affiliation as printed

   School of Mechatronic Engineering and Automation, Shanghai University, Shanghai, P.R. China