Behaviour of ultrasonic waves in porous rigid materials: an anisotropic Biot-Attenborough model

Journal article

Aygun, H. and Barlow, C (2015). Behaviour of ultrasonic waves in porous rigid materials: an anisotropic Biot-Attenborough model. Journal of Physics: Conference Series. 581, pp. 1-12. https://doi.org/10.1088/1742-6596/581/1/012006
AuthorsAygun, H. and Barlow, C
Abstract

The anisotropic pore structure and elasticity of cancellous bone cause wave speeds and attenuation in cancellous bone to vary with angle. Anisotropy has been introduced into Biot theory by using an empirical expression for the angle-and porosity-dependence of tortuosity. Predictions of a modified anisotropic Biot–Attenborough theory are compared with measurements of pulses centred on 100 kHz and 1 MHz transmitted through water-saturated porous samples. The samples are 13 times larger than the original bone samples. Despite the expected effects of scattering, which is neglected in the theory, at 100 kHz the predicted and measured transmitted waveforms are similar.

KeywordsBone, Biot theory, ultrasound, anisotropic materials
Year2015
JournalJournal of Physics: Conference Series
Journal citation581, pp. 1-12
PublisherInstitute of Physics
ISSN1742-6596
Digital Object Identifier (DOI)https://doi.org/10.1088/1742-6596/581/1/012006
Publication dates
Print29 Jan 2015
Publication process dates
Deposited30 Nov 2017
Accepted29 Jan 2015
Accepted author manuscript
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Open
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