Abstract
The crack tip field in functionally graded piezoelectric materials (FGPMs) under mechanical and electrical loadings is studied. Different from previous analyses, all material properties of the functionally graded piezoelectric materials are assumed to be linear function of y perpendicular to the crack. The crack surfaces are supposed to be insulated electrically. Similar to the Williams’ solution of homogeneous elastic materials, the higher order crack tip fields of FGPMs are obtained by the eigen-expansion method.
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