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There is a considerable number of research publications on the acousticalproperties of porous media with an elastic frame. A simple search through theWeb of ScienceTM (last accessed 21 March 2018) suggests that there are at least819 publications which deal with the acoustics of poroelastic media. A majorityof these researches require accurate knowledge of the elastic properties over abroad frequency range. However, the accuracy of the measurement of the dynamicelastic properties of poroelastic media has been a contentious issue. Thenovelty of this paper is that it studies the reproducibility of some popularexperimental methods which are used routinely to measure the key elasticproperties such as the dynamic Young's modulus, loss factor and Poisson ratioof poroelastic media. In this paper, fourteen independent sets of laboratorymeasurements were performed on specimens of the same porous materials. Theresults from these measurements suggest that the reproducibility of this typeof experimental method is poor. This work can be helpful to suggestimprovements which can be developed to harmonize the way the elastic propertiesof poroelastic media are measured worldwide.

How reproducible are methods to measure the dynamic viscoelastic properties of poroelastic media?