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Study of Damping Properties of Polymer Matrix Composites Through Wave Propagation

[+] Author Affiliations
Shank S. Kulkarni, Alireza Tabarraei

University of North Carolina at Charlotte, Charlotte, NC

Paper No. IMECE2017-71493, pp. V001T03A018; 7 pages
doi:10.1115/IMECE2017-71493
From:
  • ASME 2017 International Mechanical Engineering Congress and Exposition
  • Volume 1: Advances in Aerospace Technology
  • Tampa, Florida, USA, November 3–9, 2017
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5834-9
  • Copyright © 2017 by ASME

abstract

We conduct a stochastic analysis to investigate the damping properties of polymer composites with viscoelastic matrix and elastic spherical inclusions. Since damping capability of polymer composites is directly related to the ratio of loss to storage modulus known as tan δ, we use computational homogenization techniques to investigate the effect of vibrational frequency, size and volume fraction of inclusions on tan δ. Our results show that tan δ is highly dependent on the frequency of vibrations as well as the volume fraction of inclusions. Our numerical analyses also show that tan δ is not sensitive to the size of inclusions as long as inclusions volume fraction remains the same.

Copyright © 2017 by ASME

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