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Updated: May 21, 2026

Characterizing Dissipative Elastic Metamaterials Produced by Additive Manufacturing
Published on: June 28, 2024
Acoustical and mechanical characterization of poroelastic materials using a Bayesian approach
Jean-Daniel Chazot1, Erliang Zhang, Jérôme Antoni
1Université de Technologie de Compiègne, CNRS UMR 6253 Roberval, Centre de Recherche de Royallieu, BP 20529, 60205 Compiègne Cedex, France. jean-daniel.chazot@utc.fr
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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