Thermopiezoelectric interaction of macro- and micro-cracks in piezoelectric medium |
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| Authors: | Q H Qin |
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| Institution: | Centre for Advanced Materials Technology, Department of Mechanical and Mechatronic Engineering, The University of Sydney, Sydney NSW 2006, Australia |
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| Abstract: | Considered is the interaction of macro-and micro-cracks in an anisotropic piezoelectric solid. The Green’s 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 flux, stress and electric displacement on the microcrack are evaluated directly from the near-tip field 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. |
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