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Communication Dans Un Congrès Année : 2010

Characterisation of sound absorbing materials

Résumé

During the last 10 years, different techniques have been developed to measure the material parameters of poro-elastic materials. Measuring tortuosity and characteristic lengths using the ultrasonic technique have become a procedure that is available in several laboratories now. Until recently, data of the elastic properties of poro-elastic materials were obtained using quasi-static techniques that only provide data at low frequencies. Since a lot of damping and sound absorbing materials are visco-elastic, the elastic coefficients may depend strongly on frequency and temperature. In this talk, we will give an overview of the different techniques available for the characterisation of sound absorbing materials.
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Dates et versions

hal-00552286 , version 1 (05-01-2011)

Identifiants

  • HAL Id : hal-00552286 , version 1

Citer

Walter Lauriks. Characterisation of sound absorbing materials. 10ème Congrès Français d'Acoustique, Apr 2010, Lyon, France. ⟨hal-00552286⟩

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