Thermopiezoelectric interaction of macro- and micro-cracks in piezoelectric medium
نویسنده
چکیده
Considered is the interaction of macro-and micro-cracks in an anisotropic piezoelectric solid. The GreenÕs function and principle of superposition are used to formulate a system of singular integral equations for solving the unknown temperature discontinuity and elastic displacement-electric potential. The residual heat ̄ux, stress and electric displacement on the microcrack are evaluated directly from the near-tip ®eld of main crack. Numerical results for stress and electric displacement intensity factors in a three-crack system are obtained to illustrate the application of the method. Ó 1999 Elsevier Science Ltd. All rights reserved.
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