Ultrasonic wave propagation through porous ceramics at different angles of propagation. (February 2015)

• Record Type: Journal Article
• Authors: Aygün, Haydar; Barlow, Christopher
• Is Part Of: Applied acoustics. Volume 88(2015)
• Page Start: 6
• Page End: 11
• Publication Date: 2015-02
• Subjects: Ultrasound -- Wave propagation -- Ceramics -- Biot theory; Acoustical engineering -- Periodicals; Periodicals; 620.2
• DOI: 10.1016/j.apacoust.2014.07.011
• Languages: English
• ISSNs: 0003-682X

Abstract

Abstract: The anisotropic pore structure and elasticity of cancellous bone cause wave speeds and attenuation in cancellous bone to vary with angle. Comparisons between predictions of a Biot–Allard model allowing for angle-dependent elasticity and angle-and-porosity dependent tortuosity and transmission data obtained on water-saturated replica bones at normal and oblique incidence are extended to water saturated porous rigid ceramic at different angles of propagation. It is found that predictions of the variation of transmitted waveforms with angle through porous ceramic are in reasonable agreement with data.