Elastic Characterization of Porous Bone by Ultrasonic Method through Lamb Waves

The aim of this research is to characterize the porous bones by an ultrasonic method using Lamb waves. In recent years, characterization of such materials has attracted much attention of the researchers in the field of medicine. It requires the development of more efficient technology for obtaining the necessary quality and security. This paper aims to exploit the dispersion curves of the Lamb wave, as a new originate alternative, to characterize the porous bone. The method is modeled by using the Schoch theory for the measurement of ultrasonic parameters, namely the longitudinal and transversal velocities and densities, and then we deduce the mechanical properties of samples with different porosity in a theoretical way. The theoretical results were compared with experimental data, and it was found that the predicted values were of the same order of measurement as the experimental ones. The correlation coefficient between the experimental ultrasound velocities and the theoretical velocities predicted by the Schoch theory was R=0.96.