Summary
The interface crack problem for a piezoelectric bimaterial based on permeable conditions is studied numerically. To find the singular electromechanical field at the crack tip, an asymptotic solution is derived in connection with the conventional finite element method. For mechanical and electrical loads, the complex stress intensity factor for an interface crack is obtained. The influence of the applied loads on the electromechanical fields near the crack tip is also studied. For a particular case of a short crack with respect to the bimaterial size, the numerical results are compared with the exact analytical solutions, obtained for a piezoelectric bimaterial plane with an interface crack.
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Govorukha, V., Kamlah, M. Asymptotic fields in the finite element analysis of electrically permeable interface cracks in piezoelectric bimaterials. Arch. Appl. Mech. 74, 92–101 (2004). https://doi.org/10.1007/BF02637211
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DOI: https://doi.org/10.1007/BF02637211