Determination of the Young's Modulus and Loss Factor by Acoustic Bending Vibration Methods
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.
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
S. H. Shin et al., "Determination of the Young's Modulus and Loss Factor by Acoustic Bending Vibration Methods ", Key Engineering Materials, Vols. 297-300, pp. 1958-1961, 2005