Abstract
This paper studies the antiplane problem of an internal impermeable or permeable crack normal to the interface of two bonded functionally graded piezoelectric/piezomagnetic materials (FGPPMs). The material properties are assumed in exponential forms along the crack direction. Fourier transforms are used to reduce the crack problems to a system of singular integral equations, which is solved numerically by using the Gauss‐Chebyshev integration technique. The stress, electric displacement and magnetic induction intensity factors at the crack tips are obtained numerically. The energy density theory is applied to study the effects of nonhomogeneous material parameter β 1 and β 2, boundary conditions and crack position on the fracture behavior. Some sub‐problems are also discussed.
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