ASA 128th Meeting - Austin, Texas - 1994 Nov 28 .. Dec 02

2aSA1. Energy flux vector field in an ensonified elastodynamic sphere.

Cleon E. Dean

Dept. of Phys., Georgia Southern Univ., Landrum Box 8031, Statesboro, GA 30460

Michael F. Werby

NRL, Stennis Space Center, MS 39529-5004

Recent interest has been shown in the energy flux density inside an ensonified elastodynamic scatterer. A spherical model was chosen as the simplest and most general geometry to analyze. To properly model the energy flow in an elastodynamic medium, it is necessary to employ the elastodynamic equivalent of the Poynting vector. Plots of the vector field of the elastodynamic intensity are presented with an eye toward the classification of the type of resonance behavior displayed. Analogies with other resonance phenomena in related geometries suggest the possibility of fruitful comparison with resonance modes in shells and plates. [Work in this area supported by ONR/NRL and by ASEE/ONT Summer Fellowship Program.]