engleski

Forces on a dislocation near a crack in piezoceramic material

In this work is analyzed a simple continuum model of a single screw dislocation near a finite crack in a hexagonal piezoelectric crystal subjected to antiplane mechanical and in-plane electrical loads. The dislocation has a line force and a line charge along its core. The linear piezoelectric theory, complex analytic functions and conformal mapping method are used, and the forces acting on a dislocation are determined. The numerical results for piezoelectric PZT ceramic material are obtained in MatLab and they are presented in 2D and 3D graphs.

force; dislocation; crack; piezoceramic material

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