Dynamic Young's modulus and loss factor of plastic foams for impact sound isolation

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

The frequency and amplitude dependences of the dynamic Young's modulus and loss factor of polystyrene (PS) and polyethylene (PE) foams usable for impact sound isolation in floating floors, measured at room temperature, in the frequency range of 100-3000 Hz, and in the range of strain amplitude of 10-5-10-2, respectively, are given in the paper. It is shown that the frame loss factor of the PS and PE foams is low (approximately 0·01 and approximately 0·1, respectively), and that of the foam sheets including air is also low (approximately 0·1). The frame dynamic Young's modulus of both foams slightly increases with frequency. The dynamic behaviour of the foams is linear up to the strain amplitude of about 10-3, above which the dynamic Young's modulus decreases, whereas the loss factor increases with increasing strain.

Original languageEnglish
Pages (from-to)315-322
Number of pages8
JournalJournal of Sound and Vibration
Volume178
Issue number3
DOIs
Publication statusPublished - Dec 1 1994

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Foamed plastics
foams
Foams
isolation
modulus of elasticity
plastics
Elastic moduli
Acoustic waves
acoustics
Polyethylenes
polyethylenes
Polystyrenes
polystyrene
floating
frequency ranges
air
room temperature
Air

ASJC Scopus subject areas

  • Engineering(all)
  • Mechanical Engineering

Cite this

Dynamic Young's modulus and loss factor of plastic foams for impact sound isolation. / Pritz, T.

In: Journal of Sound and Vibration, Vol. 178, No. 3, 01.12.1994, p. 315-322.

Research output: Contribution to journalArticle

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