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Experimental identification in the ultrasonic range of a mechanical model for cortical bones

Abstract : This paper deals with the construction of a simplified elastoacoustic model which allows the ultrasonic wave propagation to be simulated in a complex biomechanical system. This simplified model consists in a fluid-solid multilayer System. In this simplified model, the main source of uncertainties is due to the constitutive equation for the solid layer which is chosen as a homogeneous transverse isotropic elastic medium. In order to improve this simplified model, a probabilistic model of the effective elasticity tensor of the solid medium is developped. A method is presented for the experimental identification in a statistical sense of the model parameters using the ultrasonic transmission technique. A complete application is presented for the human cortical bone for which an experimental database is available.
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Submitted on : Saturday, April 7, 2012 - 7:49:35 PM
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  • HAL Id : hal-00686143, version 1

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Christophe Desceliers, Christian Soize, Q. Grimal, M. Talmant, S. Naili. Experimental identification in the ultrasonic range of a mechanical model for cortical bones. International Conference on Noise and Vibration Engineering, Katholieke Univ Leuven, Sep 2008, Leuven, France. pp.Pages: 3777-3785. ⟨hal-00686143⟩

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