Electroelastic response of a flat annular crack in a piezoelectric fiber surrounded by an elastic medium |
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Authors: | Y Shindo S Lin F Narita |
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Affiliation: | (1) Department of Materials Processing, Graduate School of Engineering, Tohoku University, Aoba-yama 6-6-02, Sendai 980-8579, Japan |
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Abstract: | Following the theory of linear piezoelectricity, the electroelastic problem of a flat annular crack in a piezoelectric fiber
embedded in an elastic medium is considered. Fourier and Hankel transform techniques are employed to formulate the mixed-boundary-value
problem as a singular integral equation. The stress-intensity factor, energy-release rate and energy-density factor are computed
for some piezoelectric composites, and the influence of applied electric fields on the normalized values is displayed graphically. |
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Keywords: | Elasticity Energy release rate Integral transforms Piezocomposites Smart material systems |
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