Elastic Wave Scattering from Cylindrical Cavities and Solid Inclusions Analyzed by the Resonance Method

The formalism for a complete treatment of elastic wave scattering from cylindrical cavities and solid inclusions has been worked out for both perpendicular and oblique indice. Special cases, e.g., fluid cylinders enclosed in fluid or solid media, have already been numerically analyzed. Poles of scat...

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Hauptverfasser:	Delsanto,P. P, Alemar,J. D, Nagl,A, Subrahmanyam,J. V, Uberall,H
Format:	Report
Sprache:	eng
Schlagworte:	Acoustic scattering Amplitude Attenuation Cavities Coefficients Component Reports Cylindrical bodies Dispersing Elastic wave scattering Elastic waves Equations of motion External Fluids Internal Refraction Resonance Resonant frequency Scattering Solids Surface waves Wave propagation
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Zusammenfassung:	The formalism for a complete treatment of elastic wave scattering from cylindrical cavities and solid inclusions has been worked out for both perpendicular and oblique indice. Special cases, e.g., fluid cylinders enclosed in fluid or solid media, have already been numerically analyzed. Poles of scattering amplitudes in the complex frequency plane have been found, and were physically interpreted in terms of helical surface waves on the cylinders propagating in both the interior and the exterior medium. Dispersion, attenuation and refraction of these surface waves have been obtained. (Author) This article is from 'Transactions of the Army Conference on Applied Mathematics and Computing (1st) Held at Washington, DC on 9-11 May 1983,' AD-A139 224, p773-784.