Determination of the Young's Modulus and Loss Factor by Acoustic Bending Vibration Methods

Abstract:

A new acoustic bending vibration method of determining the resonance frequency, Young’s modulus and loss factor applicable for both metallic and non-metallic materials is proposed. Measurements were conducted by using both conventional electromagnetic excitation method specified by ASTM E 756 and ISO 6721 and our method for conductive metallic specimen of stainless steel and non-metallic polypropylene specimen. Difference in the mechanical properties observed between both methods is attributed to the presence of a metal disk attached to the non-metallic sample for electromagnetic. However, the good agreement between the results obtained by both methods for the metallic sample ascertains the reliability and advantages of the method.

• Periodical: Key Engineering Materials (Volumes 297-300)
• Pages: 1958-1961
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.297-300.1958
• Online since: November 2005
• Authors: Su Hyun Shin, Yong Bong Lee, Sung Soo Jung, Doo Hee Lee
• Keywords: Loss Factor, Vibration Damping, Young's Modulus

References

[1] ASTM E 756, Standard test method for measuring vibration-damping properties of materials (1998).

[2] ISO 6721-1, Plastics - Determination of dynamic mechanical properties, Part 1 - General principles (2001).

[3] ISO 6721-3, Plastics - Determination of dynamic mechanical properties, Part 3 - Flexural vibration resonance curve method (1994).

DOI: 10.3403/00768605u

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