Abstract
Based on the electro-elastic surface/interface theory, the size-dependent effective elastic properties of piezoelectric ceramic embedded with radially polarized nano-fibers are addressed, and the surface/interface effect is considered. Electroelastic equations for radially polarized piezoelectric ceramic are established. The analytical solutions of elastic displacement and electric potentials are exactly derived by separating variables method. The effective elastic modulus in the dilute limit is obtained by satisfying the boundary conditions with consideration of surface/interface energy. Analyses show that the effective elastic properties can be enhanced (or reduced) by adjusting the material properties of surface/interface.
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Funding
This study was funded by Natural Science Foundation for Outstanding Young Researcher in Hebei Province of China (Grant No. A2014210015), and Training Program for Leading Talent in University Innovative Research Team in Hebei Province of China (Grant No. LJRC006).
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X.Q. Fang has received research grants from Natural Science Foundation of Hebei Province, China.
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Shen, YM., Fang, XQ. Effective properties of piezoelectric ceramic embedded with radially polarized nano-fibers under electromechanical loading. Meccanica 52, 2855–2864 (2017). https://doi.org/10.1007/s11012-017-0642-0
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DOI: https://doi.org/10.1007/s11012-017-0642-0