Journal of Theoretical
and Applied Mechanics
37, 3, pp. 579-591, Warsaw 1999
The wide band ultrasonic spectroscopy in studying bones and porous implants
In the paper the method of wide band ultrasonic spectroscopy is applied to determination of the wave velocity and attenuation in a trabecular bovine bone and materials of bone implants. The theory of wave propagation in two-phase fluid saturated porous dissipative media, given by Biot (1956), is used in analysis of wave parameters in bone, instead of the usually applied theory of single-phase media. The analysis of attenuation coefficients and phase velocities of dilatational waves propagating in bovine bones and implants within the frequency range from 0.2 to 1.2 MHz has indicated remarkable influence of the internal structure of the materials on wave parameters. Potential directions of further exploatations of the results are considered.
Keywords: saturated porous bones; implants; ultrasonic waves; phase velocity; attenuation