On the estimation of complex modulus and Poisson's ratio using longitudinal wave experiments ?
In this paper we consider different least-squares-based approaches for estimating the complex Young's modulus and the complex Poisson's ratio of a viscoelastic material using a longitudinal wave propagation experiment. We present a statistical analysis of different estimation approaches and compare their performances. The analytical covariance expressions are validated using experimental data.
estimation complex modulus poisson's ratio viscoelasticity statistical analysis