THIS COMMUNICATION IS CANCELLED. Direct and inverse scattering of transient acoustic waves by a double-layered porous materials having an elastic frame

Mustapha Sadouki (1) , Mohamed Fellah (1) , Zine El Abiddine Fellah (2) , Erick Ogam (2) , Claude Depollier (3)

1 USTHB - Université des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger]
2 O&I - Ondes et Imagerie
3 LAUM - Laboratoire d'Acoustique de l'Université du Mans

The direct and inverse scattering problems of ultrasonic wave propagation in double-layered porous materials is studied. The inverse problem is solved using experimental transmitted waves at normal incidence. The double-layered porous media consist of two slabs of homogeneous isotropic porous materials with an elastic frame. The ultrasonic propagation in multilayered porous material is modelled using Biot's theory. The sensitivity of the Biot parameters with respect to the transmitted wave is studied showing the effect on each parameter on transmitted waveforms. The direct and inverse scattering problems are discussed for double-layered porous samples using experimental transmitted waves

Mots clés: Direct and inverse problems; double-layered porous materials; Biot theory

Domaines: Acoustique [physics.class-ph]; Acoustique [physics.class-ph]

Mustapha Sadouki, Mohamed Fellah, Zine El Abiddine Fellah, Erick Ogam, Claude Depollier. THIS COMMUNICATION IS CANCELLED. Direct and inverse scattering of transient acoustic waves by a double-layered porous materials having an elastic frame. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00810886⟩