Abstract
Dynamic stress intensity factors (SIFs) for a straight crack in a piezoelectric material under time-harmonic L- and SH-wave loading are determined for different electric boundary conditions. Impermeable, permeable and limited permeable cracks are compared. The problem is formulated and numerically solved using a nonhypersingular traction-based boundary integral equation method where the fundamental solution is obtained by Radon transform. A parametric study in the frequency domain shows the dependence of the SIFs on the choice of the electrical boundary conditions at the crack faces.
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