Mechanical Parameters Effects on Acoustic Absorption at Polymer Foam

Table 1

Poroelastic properties of polyurethane foam.

(a)

Porosity	Resistivity	Tortuosity	VCL	TCL	Density skeleton
	87 KN	2.52	m	m	31 Kg/m^3

(b)

Loss factor	Poisson’s coefficient	Shear modulus
	0.3	KPa

VCL: viscous characteristic length.
TCL: thermal characteristic length.