Acoustical and mechanical characterization of poroelastic materials using a Bayesian approach

Abstract : A characterization method of poroelastic materials saturated by air is described. This inverse method enables the evaluation of all the parameters with a simple measurement in a standing wave tube. Moreover, a Bayesian approach is used to return probabilistic data such as the maximum a posteriori and the confidence interval of each parameter. To get these data, it is necessary to define prior probability distributions on the parameters characterizing the studied material. This last point is very important to regularize the inverse problem of identification. In a first step, the direct problem formulation is presented. Then, the inverse characterization is developed and applied to simulated and experimental data.
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Contributor : Jérôme Antoni <>
Submitted on : Friday, July 4, 2014 - 6:51:13 PM
Last modification on : Wednesday, November 20, 2019 - 8:12:52 AM

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  • HAL Id : hal-01018735, version 1

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Erliang Zhang, Jean-Daniel Chazot, Jérôme Antoni. Acoustical and mechanical characterization of poroelastic materials using a Bayesian approach. Journal of the Acoustical Society of America, Acoustical Society of America, 2012, 131 (6), pp.4584-4595. ⟨hal-01018735⟩

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