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Smart Structures and Systems Volume 14, Number 5, November 2014 , pages 961-980 DOI: https://doi.org/10.12989/sss.2014.14.5.961 |
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Theoretical analyses for a 2-2 cement-based piezoelectric curved composite with electrode layers |
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Taotao Zhang
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| Abstract | ||
| Based on the general theory of elasticity, the static behavior of 2-2 cement-based piezoelectric curved composites is investigated. The actuator consists of 2 cement layers and 1 piezoelectric layer. Considering the electrode layer between the cement layer and the piezoelectric layer as the elastic layer, the exact solutions of the mechanical and electrical fields of the curved composites are obtained by utilizing the Airy stress function method. Furthermore, the theoretical results are compared with the FEM results and good agreements (with almost no error) are obtained, thus proving the validity of this study. Furthermore, the influence of certain parameters is discussed, which can help to get the desired displacements and stresses. Finally, it is seen that the analytical model established in this paper works well, which could benefit the design of this kind of cement-based smart devices. | ||
| Key Words | ||
| 2-2 cement based; piezoelectricity; curved composite; theoretical solutions; actuator; electrode layers | ||
| Address | ||
| Taotao Zhang: School of Transportation Science and Engineering, Beihang University, Beijing, 100191, P. R. China | ||