Abstract
The theory of small incremental fields superposed on finite biasing fields in an electroelastic body is summarized first in this paper. The Stroh formalism for two-dimensional anisotropic elasticity and piezoelectricity is generalized to two-dimensional problems of an electroelastic body under biasing mechanical and electric fields. Application of this generalized Stroh formalism to study surface waves propagating in an electroelastic half-space under uniform initial fields indicates that there exist at most two surface waves even in the presence of biasing fields and these two surface waves correspond to the well-known Rayleigh and Bleustein waves in the mechanical nature. A simple procedure is established to distinguish these two types of waves. Application of the results to a model electrostrictive material is included for illustration. It is found that initial biasing fields can greatly influence propagation feature of surface waves.
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Hu, Y., Yang, J. & Jiang, Q. Surface waves in electrostrictive materials under biasing fields . Z. angew. Math. Phys. 55, 678–700 (2004). https://doi.org/10.1007/s00033-004-1105-8
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DOI: https://doi.org/10.1007/s00033-004-1105-8