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 language | English |
|---|---|
| Pages (from-to) | 10-13 |
| Number of pages | 4 |
| Journal | Zhendong yu Chongji/Journal of Vibration and Shock |
| Volume | 28 |
| Issue number | 4 |
| State | Published - Apr 2009 |
Keywords
- Co-cured
- Composites
- Damping characteristic
- Dynamic mechanical thermal analysis (DMTA)
- Viscoelastic damping layer
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