Abstract
The plane problem of a finite Griffith crack moving with a constant velocity in piezoelectric ceramics, which are subjected to far-field mechanical and electrical loads, is studied. The closed-form expressions for the electroelastic fields are obtained based on the extended Stroh formalism. Special attention is paid to the dependence of the normalized hoop stresses near a crack tip on crack velocity, electrical to mechanical load ratios and material properties. The calculated normalized hoop stresses are employed to predict the propagation direction of a moving crack based on the maximum tensile stress criterion.
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© 2003 Kluwer Academic Publishers
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Soh, A.K., Lee, K.L., Liu, J.X., Fang, D.N. (2003). Behavior of a Moving Griffith Crack in Piezoelectric Ceramics. In: Yang, J.S., Maugin, G.A. (eds) Mechanics of Electromagnetic Solids. Advances in Mechanics and Mathematics, vol 3. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0243-8_4
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DOI: https://doi.org/10.1007/978-1-4613-0243-8_4
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