Acoustic resonance scattering by submerged elastic shells

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Applied Mechanics Reviews; (United States)

OSTI ID:6101442

Gaunaurd, G C ^[1]; Werby, M F

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1. Naval Surface Warfare Center, Silver Spring, MD (United States)

The authors review a number of instances in which classical acoustic wave scattering from submerged elastic shells can be analyzed in the resonance region of their spectra. They recently reviewed the cases dealing with acoustic resonance scattering from solid elastic bodies, or with elastic resonance scattering from fluid or solid inclusions in elastic media. It only remains for us to address the works dealing with submerged shells, which they analyze here. They study scattering by bare or viscoelastically coated spherical and cylindrical shells in water, be means of (exact) normal-mode solutions, and by spheroidal shells by numerical approaches, particularly via the T-matrix method. They consider the shell responses mostly in unbounded media and when the interrogating waves are plane and c.w., although some recent findings valid for pulsed incidences and in the vicinity of environmental boundaries are also included. They use the methodology of the resonance scattering theory (RST) as much as possible, emphasizing its post-1981 results. High-frequency findings, obtained by asymptotic methods, are extrapolated to lower frequencies, to confirm RST predictions for the intermediate spectral regions in which the most important structural resonances are known to reside. A large number of bibliographical entries are collected and discussed in connection with their approach.

• OSTI ID: 6101442
• Journal Information: Applied Mechanics Reviews; (United States), Journal Name: Applied Mechanics Reviews; (United States) Vol. 43:8; ISSN AMREA; ISSN 0003-6900
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
ASYMPTOTIC SOLUTIONS
CALCULATION METHODS
CYLINDERS
DATA
ELASTIC SCATTERING
INELASTIC SCATTERING
INFORMATION
RESONANCE
RESONANCE SCATTERING
SCATTERING
SHELLS
SOUND WAVES
SPHERES