Dynamic Young's modulus and loss factor of floor covering materials

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The dynamic Young's modulus and loss factor of typical floor covering materials (felt, cork, solid PVC and PVC foam) have been measured as functions of frequency and strain amplitude in the range of 101 to 104 Hz and 10-5 to 10-2, respectively, in order to clear up the role of material behaviour in the improvement of impact sound isolation. It has been shown that the loss factor of the materials, with the exception of PVC foam, is relatively low (≈0.1) and the frequency dependence of their dynamic modulus is slight. The loss factor of the PVC foam is large (≈0.5) and the frequency dependence of the dynamic modulus is significant enough to have an influence on the improvement of impact sound isolation. The cork and PVC foam exhibit moderate non-linearity in the strain range of investigation, but the felt and solid PVC have more marked non-linearity in elastic behaviour above strain amplitude of about 5 × 10-5, which may play a role in the impact sound isolation.

Original languageEnglish
Pages (from-to)179-190
Number of pages12
JournalApplied Acoustics
Volume49
Issue number2
DOIs
Publication statusPublished - Oct 1996

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Polyvinyl chlorides
foams
modulus of elasticity
coverings
Elastic moduli
isolation
Foams
acoustics
nonlinearity
Acoustic waves

Keywords

  • Dynamic modulus
  • Floor coverings
  • Frequency dependence
  • Loss factor
  • Non-linearity

ASJC Scopus subject areas

  • Mechanical Engineering
  • Acoustics and Ultrasonics

Cite this

Dynamic Young's modulus and loss factor of floor covering materials. / Pritz, T.

In: Applied Acoustics, Vol. 49, No. 2, 10.1996, p. 179-190.

Research output: Contribution to journalArticle

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