Non-linearity of frame dynamic characteristics of mineral and glass wool materials

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Abstract

The non-linearities of the frame dynamic modulus of elasticity and loss factor of bonded mineral and glass wool materials measured in the range of strain amplitude of 10-6 to 10-2 are reported in this paper. It is shown that the dynamic modulus decreases, and the loss factor increases and passes through a maximum with increasing strain. The measurement technique and the results obtained for the character and the measure of non-linearity, and the linearity limit are given in the paper. An attempt is made to clear up the role of material structure in the non-linear behaviour.

Original languageEnglish
Pages (from-to)263-274
Number of pages12
JournalJournal of Sound and Vibration
Volume136
Issue number2
DOIs
Publication statusPublished - Jan 22 1990

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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