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Article Dans Une Revue Journal of the Acoustical Society of America Année : 2009

Experimental investigation on pore size effect on the linear viscolelastic properties of acoustic foams

Résumé

This paper presents linear viscoelastic measurement on a large frequency range (10(-2)- 10(8) Hz) for cross-linked polymer open-cell foams of same density and different pore sizes. This large extension of frequency range is obtained by the validation of a frequency-temperature superposition principle, commonly used with polymers. At higher frequencies, the shear moduli are independent of the pore size. In acoustical insulation range (1 Hz-16 kHz), the shear moduli decreases with the foams' pore size. (C) 2009 Acoustical Society of America
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Dates et versions

hal-00433859 , version 1 (20-11-2009)

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Mickael Deverge, Lazhar Benyahia, Sohbi Sahraoui. Experimental investigation on pore size effect on the linear viscolelastic properties of acoustic foams. Journal of the Acoustical Society of America, 2009, 126 (3), pp.EL93-EL96. ⟨10.1121/1.3186799⟩. ⟨hal-00433859⟩
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