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Electroelastic field induced by thin interface electrodes between two bonded dissimilar piezoelectric ceramics

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Abstract

The electroelastic analysis of multiple collinear electrodes embedded at the interface of two bonded dissimilar piezoelectric ceramics is made. Within the framework of linear piezoelectricity, the Fourier transform technique is applied to reducing the problem to a singular integral equation with Cauchy kernel. Two particular cases are especially emphasized. For a single interface electrode, the electroelastic field is obtained in the entire plane of a two-phase piezoelectric composite in terms of elementary functions. For two collinear interface electrodes of equal length, a closed-form solution is determined along the interface. Obtained results reveal that near the electrode edges, the induced electroelastic field exhibits a square-root singularity, and the oscillatory singularity does not occur for arbitrary two piezoelectric ceramics poled in the same or opposite directions normal to the interface. Across the electrode, the normal component of stress is continuous, while that of strain exhibits a jump, implying strain incompatibility due to the mismatch of the material properties of two dissimilar poled ceramics.

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Authors and Affiliations

  1. Institute of Mechanics and Sensor Technology, School of Civil Engineering and Architecture, Central South University, Changsha, 410083, China

    Li Xianfang

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  1. Li Xianfang
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Correspondence to Li Xianfang.

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Li, X. Electroelastic field induced by thin interface electrodes between two bonded dissimilar piezoelectric ceramics. SCI CHINA SER G 49, 526–539 (2006). https://doi.org/10.1007/s11433-006-0526-0

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  • DOI: https://doi.org/10.1007/s11433-006-0526-0

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