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Bending analysis of piezoelectric exponentially graded fiber-reinforced composite cylinders in hygrothermal environments

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Abstract

The closed-form solutions of a piezoelectric exponentially graded fiber-reinforced hollow cylinder in hygrothermal environment conditions are investigated. The interaction of electric displacement and electric potentials as well as the elastic deformations is discussed. The present piezoelectric fiber-reinforced circular cylinder is subjected to a mechanical load as well as an electric potential at its lateral surfaces. The resultant constitutive equations of the piezoelectric fiber-reinforced composite cylinder are analytically investigated. The thermal conductivity and the moisture diffusivity coefficient are supposed to change continuously in the radial direction by a simple exponential law. The hygrothermoelastic responses of piezoelectric exponentially graded fiber-reinforced hollow circular cylinders are presented. The significant of influence of the graduation of material, temperature, moisture, pressures and electric parameters is investigated. Concluding remarks and appropriate discussions are presented.

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Acknowledgments

This work was funded by the Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah, under Grand No. (130–805–D1435). The author, therefore, acknowledge with thanks DSR technical and financial support.

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Correspondence to Ashraf M. Zenkour.

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Zenkour, A.M. Bending analysis of piezoelectric exponentially graded fiber-reinforced composite cylinders in hygrothermal environments. Int J Mech Mater Des 13, 515–529 (2017). https://doi.org/10.1007/s10999-016-9351-4

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  • DOI: https://doi.org/10.1007/s10999-016-9351-4

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