Document Detail

Estimating the dynamic effective mass density of random composites.
MedLine Citation:
PMID:  20707426     Owner:  NLM     Status:  MEDLINE    
The effective mass density of an inhomogeneous medium is discussed. Random configurations of circular cylindrical scatterers are considered, in various physical contexts: fluid cylinders in another fluid, elastic cylinders in a fluid or in another solid, and movable rigid cylinders in a fluid. In each case, time-harmonic waves are scattered, and an expression for the effective wavenumber due to Linton and Martin [J. Acoust. Soc. Am. 117, 3413-3423 (2005)] is used to derive the effective density in the low frequency limit, correct to second order in the area fraction occupied by the scatterers. Expressions are recovered that agree with either the Ament formula or the effective static mass density, depending upon the physical context.
P A Martin; A Maurel; W J Parnell
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  128     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-08-16     Completed Date:  2011-01-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  571-7     Citation Subset:  IM    
Department of Mathematical and Computer Sciences, Colorado School of Mines, Golden, Colorado 80401-1887, USA.
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MeSH Terms
Elastic Modulus
Linear Models
Models, Theoretical*

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