ASA 125th Meeting Ottawa 1993 May

3aSA9. Dispersion predictions for waves along a cylindrical shell immersed in fluid.

Martin G. Manley

Grad. Prog. in Acoust., Penn State Univ., P.O. Box 30, State College, PA 16804

The behavior of guided flexural waves of an infinite, elastic, circular cylinder immersed in fluid was considered previously [M. Manley, J. Acoust. Soc. Am. 92, 2387 (1992)]. The fluid is of lower density than the solid. The asymptotically exact dispersion relation derived previously is applied to determine dominant terms for dispersion of axial waves in the vicinity of the ring frequency. The effect of fluid loading on the cutoff frequency for the longitudinal mode is examined. [Supported by the PSU Applied Research Laboratory Exploratory and Foundational Research Program.]