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Damping characteristic analysis of co-cured composites with an embedded viscoelastic layer

  • Li Jian Pan*
  • , Bo Ming Zhang
  • , Fu Hong Dai
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The dynamic behavior of a viscoelastic material before and after co-cured with composites was investigated using dynamic: mechanical thermal analysis (DMTA). The effects of the co-curing process, the thickness of the viscoelastic layer and the composite flexible layer on the damping characteristic of co-cured composites were studied with finite element method. The results showed that the value of damping crest was 54% of the idealized one due to the interaction of the resin and the embedded viscoelastic material in the co-curing process; increasing the thickness of the embedded viscoelastic layer or inserting some flexible layers near the viscoelastic layer could not only increase the value of damping crest of co-cured composites, but also widen the temperature range of damping in co-cured composites.

Original languageEnglish
Pages (from-to)10-13
Number of pages4
JournalZhendong yu Chongji/Journal of Vibration and Shock
Volume28
Issue number4
StatePublished - Apr 2009

Keywords

  • Co-cured
  • Composites
  • Damping characteristic
  • Dynamic mechanical thermal analysis (DMTA)
  • Viscoelastic damping layer

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