A theory for nonlinear surface acoustic waves in isotropic solids [E. A. Zabolotskaya, J. Acoust. Soc. Am. 91, 2569–2575 (1992)] is generalized to include the anisotropy of crystals. There is no restriction to material symmetry, orientation of the free surface with respect to crystal axes, or propagation direction in the plane of the free surface. Numerical simulations of waveform distortion, shock formation, and harmonic propagation curves are presented for two different cuts of potassium chloride.
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Hamilton et al. (1999) studied this question.
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