ABSTRACT
The problem for a crack located within a homogeneous piezoelectric material bonded to a functionally graded piezoelectric material is studied. It is subjected both to the mechanical and electrical loads. By using the Fourier transform and residue theorem, the problem can be reduced to a system of singular integral equations and then solved by the Gauss-Chebyshev integration formula. The dependency of stress and electric displacement intensity factors on the material nonhomogeneity parameter is discussed.