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An Inverse Method to Measure the Complex Dynamic Moduli of Elastomers

[+] Author Affiliations
Yves H. Berthelot, Lei Wu

Georgia Institute of Technology, Atlanta, GA

Paper No. IMECE2002-32727, pp. 27-32; 6 pages
doi:10.1115/IMECE2002-32727
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Noise Control and Acoustics
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Noise Control and Acoustics Division
  • ISBN: 0-7918-3643-6 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

The dynamic moduli of elastomers are estimated from measurements of the surface velocity of a 3D sample. The measured values are matched with predictions from a finite element model in which the material properties are adjustable parameters. The sensitivity of the inversion technique to the locations of the measurements is discussed. Numerical simulations indicate that the method might be used to determine the moduli of two isotropic layers bonded together. Results also indicate the possibility of detecting the presence of a large defect in the sample.

Copyright © 2002 by ASME
Topics: Elastomers

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