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On the influence of electric boundary conditions on dynamic SIFs in piezoelectric materials |
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| Authors: | Tsviatko Rangelov Petia Dineva Dietmar Gross |
| Institution: | 1. Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria 2. Institute of Mechanics, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria 3. Division of Solid Mechanics, Darmstadt University of Technology, 64289, Darmstadt, Germany |
| 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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