Propagation of acoustic waves in periodic and random two-dimensional composite media

J. O. Vasseur, Pierre A Deymier

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Transmission of acoustic waves in two-dimensional composite media composed of arrays of Duralumin cylindrical inclusions embedded in a poly vinyl chloride (PVC) matrix is studied. Experimental and theoretical results for the transmission spectrum of a periodic array of cylinders organized on a square lattice are reported. Local gaps in the first two-dimensional Brillouin zone are predicted and observed. The experimental measurements of power spectra for a random array of inclusions show a weak correlation between disorder and acoustic absorptions up to a high degree of disorder. Only in the case of highly random arrangements does the transmission spectrum diverge from the one obtained with a periodic array of inclusions.

Original languageEnglish (US)
Pages (from-to)2207-2212
Number of pages6
JournalJournal of Materials Research
Volume12
Issue number8
StatePublished - Aug 1997

Fingerprint

Acoustic waves
composite materials
propagation
acoustics
Composite materials
inclusions
Aluminum copper alloys
Vinyl Chloride
disorders
Power spectrum
Acoustics
Brillouin zones
power spectra
chlorides
matrices

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Propagation of acoustic waves in periodic and random two-dimensional composite media. / Vasseur, J. O.; Deymier, Pierre A.

In: Journal of Materials Research, Vol. 12, No. 8, 08.1997, p. 2207-2212.

Research output: Contribution to journalArticle

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