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Stochastic inverse problem for the 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 : Thursday, April 26, 2012 - 8:34:18 PM
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Christophe Desceliers, Christian Soize, Q. Grimal, M. Talmant, Salah Naili. Stochastic inverse problem for the experimental identification in the ultrasonic range of a mechanical model for cortical bones. ICIPE 2008, 6th International Conference on Inverse Problems in Engineering: Theory and Practice, Jun 2008, Dourdan, France. pp.1-8, ⟨10.1088/1742-6596/135/1/012036⟩. ⟨hal-00691714⟩

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