title: Break of reciprocity principle due to localized nonlinearities in concrete.
abstract: The effects of localized nonlinearities on the reciprocity principle in the context of ultrasounds and nonlinear elasticity are discussed in this paper. Experiments will be presented to prove that a localized crack in a concrete beam causes a break of reciprocity in the ultrasonic response to a mechanical excitation. The link between non-reciprocity and asymmetry in the nonlinear response will be demonstrated and discussed as a tool for NonDestructive Evaluation.
authors.affiliation: Applied Science and Technology Department, Politecnico di Torino, Turin, Italy. marco.scalerandi@infm.polito.it
authors.forename: M
authors.initials: M
authors.lastname: Scalerandi
authors.forename: C L E
authors.initials: CL
authors.lastname: Bruno
authors.forename: A S
authors.initials: AS
authors.lastname: Gliozzi
authors.forename: P G
authors.initials: PG
authors.lastname: Bocca