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

J. O. Vasseur, P. A. Deymier

Research output: Contribution to journalArticle

7 Scopus citations

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
DOIs
StatePublished - Aug 1997

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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