Electrostrictive thin-plate finite element: numerical results and experimental validations

Frederic Pablo; Daniel L. Osmont; Roger Ohayon

doi:10.1117/12.475216

10 July 2002 Electrostrictive thin-plate finite element: numerical results and experimental validations

Frederic Pablo, Daniel L. Osmont, Roger Ohayon

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Proceedings Volume 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control; (2002) https://doi.org/10.1117/12.475216
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

Piezoelectric plates have been widely used for the vibration reduction and noise control of structures. Due to power forces considerations, electrostrictive patches present a growing interest. It is thus the purpose of the present research to contribute to modeling aspects of thin structures integrating such actuators. Several three-dimensional finite elements have been elaborated to simulate these structures behavior. Using the constitutive relationships analyzed by the first author in a previous paper, an original two-dimensional plate theory have been presented at SPIE'01 with a focus on modeling aspects and corresponding appropriate variational formulations. Let us recall that the element here developed has the particular property of reducing the initial electromechanical problem to a purely mechanical problem based on a modified elastic constitutive law. The electrical unknowns are then explicitly derived from the mechanical displacements. This theory thus proved that there is no need to develop new plate finite elements but that one could use classical elements for laminated plates. The previous paper, moreover underlined that using current as actuators driving input leads in simplifications of the behavior modeling. The purpose of this presentation is then to validate the current driven and voltage driven plate models, previously established, through numerical finite element results and experimental correlations.

Citation Download Citation

Frederic Pablo, Frederic Pablo, Daniel L. Osmont, Daniel L. Osmont, Roger Ohayon, Roger Ohayon, "Electrostrictive thin-plate finite element: numerical results and experimental validations", Proc. SPIE 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control, (10 July 2002); doi: 10.1117/12.475216; https://doi.org/10.1117/12.475216

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