Acoustic resonance scattering by large-aspect-ratio solid targets |
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| Authors: | Green L |
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| Institution: | Martin Marietta Baltimore Aerospace, Baltimore, MD, USA; |
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| Abstract: | The transition-matrix (T-matrix) approach to acoustic scattering is used to investigate scattering by high-aspect-ratio solid elastic targets. Results for several different materials are presented over aKL/2range of 0.5-16.0 for targets with aspect ratios from 1 to 10. It is demonstrated that the phase velocity of the Rayleigh resonances on solid spheroids is closely related to the shear speed of the material. In addition, high-Qresonant peaks are shown to dominate the backscattered response for many high-aspect-ratio targets. |
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