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An alternative Biot's formulation for dissipative porous media with skeleton deformation
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10.1121/1.4826175
/content/asa/journal/jasa/134/6/10.1121/1.4826175
http://aip.metastore.ingenta.com/content/asa/journal/jasa/134/6/10.1121/1.4826175

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Sound absorption coefficient of 6 × 6 ft foam samples: Comparison between measured data (⋄) and numerical prediction. : DBM model with structural effects; : DBM model with limp assumptions.

Image of FIG. 2.
FIG. 2.

(Color online) Sound transmission loss of a multi-layer system: comparison between measured data (⋄) and numerical prediction. : Miki model for laterally infinite sample; : Miki model for a finite size sample using Vigran approach.

Image of FIG. 3.
FIG. 3.

(Color online) Sound transmission loss of a solid perforated panel with different perforation rate : comparison between prediction from Ref. 25 [Fig. 4(b)] (•, ○, ◻, △) and numerical prediction ( ).

Image of FIG. 4.
FIG. 4.

(Color online) Sound absorption coefficient of a poro-elastic plate backed with a 100 mm air gap. Comparison between prediction from Ref. 25 (Fig. 7) (symbols) and numerical prediction (broken lines). Rigid frame assumption: , ; elastic frame assumption: △, .

Image of FIG. 5.
FIG. 5.

(Color online) Sound absorption coefficient of a porous composite (PC) material made from a perforated rock wool (host) and a melamine inclusion (client). Comparison between measured data and numerical prediction (—). Calculation for host alone: and for client alone: .

Image of FIG. 6.
FIG. 6.

(Color online) Sound transmission loss of a porous composite (PC) material made from a perforated rockwool (host) and a melamine inclusion (client). Comparison between measured data and numerical prediction (—). Calculation for host alone: and for client alone: .

Tables

Generic image for table
TABLE I.

Acoustic, elastic, and damping parameters of the host and client materials constituting the porous composite.

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/content/asa/journal/jasa/134/6/10.1121/1.4826175
2013-12-01
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: An alternative Biot's formulation for dissipative porous media with skeleton deformation
http://aip.metastore.ingenta.com/content/asa/journal/jasa/134/6/10.1121/1.4826175
10.1121/1.4826175
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