title: Modeling dynamic acousto-elastic testing experiments: validation and perspectives.
abstract: Materials possessing micro-inhomogeneities often display a nonlinear response to mechanical solicitations, which is sensitive to the confining pressure acting on the sample. Dynamic acoustoelastic testing allows measurement of the instantaneous variations in the elastic modulus due to the change of the dynamic pressure induced by a low-frequency wave. This paper shows that a Preisach-Mayergoyz space based hysteretic multi-state elastic model provides an explanation for experimental observations in consolidated granular media and predicts memory and nonlinear effects comparable to those measured in rocks.
authors.affiliation: Department of Applied Science and Technology, Institute of Condensed Matter Physics and Complex Systems, Politecnico di Torino, C.so Duca degli Abruzzi 24, Torino, Italy.
authors.forename: A S
authors.initials: AS
authors.lastname: Gliozzi
authors.affiliation: Department of Applied Science and Technology, Institute of Condensed Matter Physics and Complex Systems, Politecnico di Torino, C.so Duca degli Abruzzi 24, Torino, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Scalerandi