title: Lamb wave reflection at the free edge of a plate.
abstract: This study concentrates on the reflection of Lamb waves at the free end of a plate. The conversion phenomena are examined in detail over a large frequency range and the energy conversion coefficients are obtained by three different ways: theoretically, numerically (finite element method) and experimentally. The experimental energy determination is obtained from the measurement of the plate normal displacements, by mean of a laser interferometer. All results are in relatively good agreement and the energy balance between incident and reflected waves is discussed in each case.
authors.affiliation: Laboratoire d'Acoustique Ultrasonore et d'Electronique, CNRS (UMR 6068), Université du Havre, Place Robert Schuman, BP 4006, 76610 Le Havre, France. morvan@iut.univ-lehavre.fr
authors.forename: Bruno
authors.initials: B
authors.lastname: Morvan
authors.forename: Nicolas
authors.initials: N
authors.lastname: Wilkie-Chancellier
authors.forename: Hugues
authors.initials: H
authors.lastname: Duflo
authors.forename: Alain
authors.initials: A
authors.lastname: Tinel
authors.forename: Jean
authors.initials: J
authors.lastname: Duclos