22 September 1993 Comparison of experimental methods for determination of dynamic properties of viscoelastic material
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Proceedings Volume 2101, Measurement Technology and Intelligent Instruments; (1993); doi: 10.1117/12.156442
Event: Measurement Technology and Intelligent Instruments, 1993, Wuhan, China
Abstract
Four experimental methods for determination of dynamic mechanical properties of viscoelastic materials are presented. The first and the second ones are the strain and acceleration measurement at two different crosssections of an axially impacted rod specimen respectively. The third method adopts resonance technique and the fourth one is correction method. Tests are carried out with Nylon 6 and Polyurethane(pU) . The diagrams of complex Young''s modulus and loss factor versus frequency are obtained. Comparison shows that the results from these four methods are reasonably close. The useful frequency ranges for valid results for each method are discussed.
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L. H. Yam, Leung Hiu Kong, Lee Wing Wah, Fung Ka Fai, "Comparison of experimental methods for determination of dynamic properties of viscoelastic material", Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156442; https://doi.org/10.1117/12.156442
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Wave propagation

Phase velocity

Spectrum analysis

Amplifiers

Error analysis

Fourier transforms

3D metrology

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