this paper presents the formalism for a complete treatment of elastic-wave scattering from infinite cylindrical cavities and solid inclusions for general oblique incidence. poles of scattering amplitudes have been found for evacuated and fluid-filled cylinders. dispersion, attenuation, and refraction of surface waves have been obtained. resonance features (particularly the cavity eigenfrequencies) can be understood and may be exploited for purposes of classification and identification of flaws by their ultrasonic resonances (ultrasonic 'resonance spectroscopy'). (author/ntiac)
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