BioResources (Nov 2015)

Measuring Young’s Modulus of a Wooden Bar Using Flexural Vibration without Measuring its Weight

  • Yoshitaka Kubojima,
  • Hideo Kato,
  • Mario Tonosaki,
  • Satomi Sonoda

DOI
https://doi.org/10.15376/biores.11.1.800-810
Journal volume & issue
Vol. 11, no. 1
pp. 800 – 810

Abstract

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This study aimed to develop a simple measuring method to determine Young’s modulus of a wooden bar by measuring its flexural vibration without measuring its weight. Before and after bonding an iron piece to a wooden rectangular bar, a free-free flexural vibration test and fixed-fixed flexural vibration test were performed to obtain Young’s modulus. Young’s modulus was calculated by substituting the ratio of the resonance frequencies of a wooden bar with and without a bonded iron piece into the frequency equation. The calculated results resembled the experimental values determined without the iron piece.

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