Chapter 57. Improved Technique for Young's Modulus Determination by Flexural Resonance

  1. John B. Wachtman Jr.
  1. E. Scafè,
  2. L. Fabbri,
  3. G. Grillo and
  4. L. Di Rese

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313978.ch57

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10

Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10

How to Cite

Scafè, E., Fabbri, L., Grillo, G. and Di Rese, L. (1994) Improved Technique for Young's Modulus Determination by Flexural Resonance, in Proceedings of the 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 13, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313978.ch57

Author Information

  1. ENIRICERCHE S.p.A., 00016 Monterotondo (Roma), Italy

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1994

ISBN Information

Print ISBN: 9780470375198

Online ISBN: 9780470313978

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Keywords:

  • ceramic materials;
  • thickness;
  • analogously;
  • harmonic;
  • geometries

Summary

Elastic properties in structural ceramics are widely studied with different experimental techniques in order to obtain engineering and diagnostic data about the processed materials. A new set-up for measuring flexural resonance is presented. The apparatus is based on electrostatic excitation where sample vibrations are detected by a laser modulation technique.

Due to the high sensitivity and accuracy of this experimental set-up, it was possible to measure Young's modulus of samples with relatively high thickness/length ratios, thus allowing elastic properties determination directly on bending-strength test bars. The measurements were performed according to ASTM procedure. The high frequency resolution allowed the evaluation of internal friction variation due to processing, by non linear least square analysis of resonance curves.