Transmission of ultrasonic waves through porous layers of high flow resistivity saturated by air

Authors
Kelders, L Lauriks, T Allard, JF
Citation
L. Kelders et al., Transmission of ultrasonic waves through porous layers of high flow resistivity saturated by air, IEEE ULTRAS, 46(1), 1999, pp. 114-119
Citations number
11
Categorie Soggetti
Optics & Acoustics
Journal title
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
ISSN journal
08853010 → ACNP
Volume
46
Issue
1
Year of publication
1999
Pages
114 - 119
Database
ISI
SICI code
0885-3010(199901)46:1<114:TOUWTP>2.0.ZU;2-P
Abstract
Transmission of ultrasonic waves through porous materials of high flow resi stivity and porosity (in contact with air at both faces) is modelled and me asured for an open-bubble foam at normal and oblique incidence. The importa nce of the airborne wave and the differences with the case of an elastic no nporous solid are demonstrated. A simple method to measure the shear modulu s and the Poisson coefficient of the frame is suggested for similar materia ls.