This paper considers a mode III crack problem for a functionally graded piezoelectric material strip. The mechanical and electrical properties of the strip are considered for a class of functional forms for which the equilibrium equation has an analytical solution. The problem is solved by means of singular integral equation technique. Both a single crack and two collinear cracks are investigated. The results are tabulated and plotted to show the effect of the material nonhomogeneity and crack location on the stress and electric displacement intensity factors.

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