Acoustical Porous Material Recipes (APMR)
section:
Home
Slides of
Characterization and modeling challenges
of multiple dynamics materials
(a.k.a. metamaterials)
ICA 2019 conference in Aachen (Germany)
(including an explorable explanation of
the mass density and the bulk modulus
)
The
PDF
file of the slides.
A brief introduction to dynamic phenomena in porous materials in relation with mass density and bulk modulus
Visco-inertial effects :
Thermal effects :
An explorable explanation about the dynamic mass density and dynamic bulk modulus
Real
&
imag
parts of
mass density
frequency (Hz)
Real
&
imag
parts of
bulk modulus
frequency (Hz)
• porosity :
%
• resistivity :
N.s.m
-4
,
• tortuosity :
,
• viscous charac. length :
μm,
• thermal charac. length :
μm,
• static th. permeability :
× 10
-10
m
2
For more information about these parameter, visit
APMR.matelys.com
The content of this page is copyleft under :
the creative commons license
Attribution 3.0 Unported (CC BY 3.0)
.
Luc Jaouen (
@ljaouen
), ISSN 2606-4138.
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Matelys
.