Open AccessOptimum material gradient composition for the functionally graded piezoelectric beams
Author(s) -
M. Lezgy-Nazargah,
M Farahbakhsh
Publication year - 2018
Publication title -
international journal of engineering, science and technology andb. lagos
Language(s) - English
Resource type - Journals
ISSN - 2141-2839
DOI - 10.4314/ijest.v5i4.8
Subject(s) - piezoelectricity , materials science , finite element method , actuator , functionally graded material , beam (structure) , material properties , boundary value problem , piezoelectric sensor , stress (linguistics) , volume fraction , acoustics , structural engineering , composite material , computer science , mathematics , engineering , physics , mathematical analysis , linguistics , philosophy , artificial intelligence
This study investigates the relation between the material gradient properties and the optimum sensing/actuation design of the functionally graded piezoelectric beams. Three-dimensional (3D) finite element analysis has been employed for the prediction of an optimum composition profile in these types of sensors and actuators. To this end, various static tests for functionally graded piezoelectric beams with different geometric parameters, material gradient index, mechanical and electrical boundary conditions are considered. The obtained numerical results of the present study not only would help the selection of a most suitable volume fraction distribution for the functionally graded piezoelectric sensors and actuators but also give a comprehensive insight about the static electro-mechanical behavior of these structures. Moreover, the present results could serve as a benchmark to assess different one-dimensional functionally graded piezoelectric beam theories.Keywords: Piezoelectric sensors and actuators, Functionally graded materials, Stress minimization, Optimum design, Finite element method