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Modelling and analysis of piezoelectric actuators in anisotropic structures

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Summary

In this paper, we examine the coupled electromechanical behaviour of a piezoceramic actuator bonded to a finite elastic medium under inplane mechanical and electric loading. The purpose of the current work is to study the suitability of using a simple actuator model to simulate the load transfer between actuators and the host medium. The actuator is characterized by an electroelastic line model with the poling direction being perpendicular to its length. The solution of this electromechanically couple problem is provided by solving singular integral equations in terms of an interfacial shear stress and conducting finite element analysis. The results show that the transfer of the actuation energy between the actuator and the host structure can be effectively simulated using the developed theoretical model. Typical examples are provided to show the effects of the geometry, the material combination and anisotropy upon the load transfer. The study is further extended to treat the interfacial debonding between the actuator and the host material.

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  1. X. D. Wang & G. L. Huang

    Present address: Department of Mechanical Engineering, University of Alberta, T6G2G8, Edmonton, Alberta, Canada

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    1. X. D. Wang
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    2. G. L. Huang
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    Wang, X.D., Huang, G.L. Modelling and analysis of piezoelectric actuators in anisotropic structures. Acta Mechanica 155, 45–63 (2002). https://doi.org/10.1007/BF01170839

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    • DOI: https://doi.org/10.1007/BF01170839

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