Functionally graded piezoelectric strip with a penny-shaped crack under electromechanical loadings |
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| Institution: | 1. Faculty of Engineering, University of Zanjan, P.O. Box 45195-313, Zanjan, Iran;2. Department of Mechanical Engineering, Karaj Branch, Islamic Azad University, Alborz, Iran;3. Department of Mechanical Engineering, Hashtgerd Branch, Islamic Azad University, P.O. Box 33615-178, Alborz, Iran;4. Department of Civil and Structural Engineering, Aalto University, P.O. Box 12100, FI - 00076, Finland |
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| Abstract: | In this paper, the mixed-mode penny-shaped crack problem for a functionally graded piezoelectric material (FGPM) strip is considered. It is assumed that the electroelastic properties of the strip vary continuously along the thickness of the strip, and that the strip is under in-plane electromechanical loadings. The problem is formulated in terms of a system of singular integral equations. The stress and electric displacement intensity factors are presented for various values of dimensionless parameters representing the crack size, the crack location, and the material nonhomogeneity. |
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