Bones are highly mineralized rigid structures that make up the skeleton, having a major role in supporting the body. The elastic properties of the bone allow it to take over certain static or dynamic loads, mainly compression and bending, and the viscous properties allow it to dampen dynamic loads. The Vibro Acoustics Method (VAM), based on the analysis of signals recorded through a microphone, allows the measurement of the effective elastic modulus and the effective mechanical damping constant of an anisotropic material in the resonant spectrum given by the Fast Fourier Transform (FFT) or using the Prony Series Method (PSM). This paper demonstrates that VAM is suitable for accurate measurement of the equivalent anisotropic elasticity of a bone and can also provide accurate information about equivalent viscous bone damping.
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Determination of Bone Tissue Viscoelastic Properties by Vibroacoustic Measurements
Semantic Scholar · Engineering · 2020
Abstract
Bones are highly mineralized rigid structures that make up the skeleton, having a major role in supporting the body. The elastic properties of the bone allow it to take over certain static or dynamic loads, mainly compression and bending, and the viscous properties allow it to dampen dynamic loads. The Vibro Acoustics Method (VAM), based on the analysis of signals recorded through a microphone, allows the measurement of the effective elastic modulus and the effective mechanical damping constant of an anisotropic material in the resonant spectrum given by the Fast Fourier Transform (FFT) or using the Prony Series Method (PSM). This paper demonstrates that VAM is suitable for accurate measurement of the equivalent anisotropic elasticity of a bone and can also provide accurate information about equivalent viscous bone damping.