ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The viscoelastic constants of poly(butylene terephthalate) were determined as a function of temperature using the harmonic dispersion of longitudinal resonances. Measured quantities were Young's modulus, Poisson's ratio and the logarithmic decrement, from which the bulk and shear moduli were derived. It was found that a dispersion relation used by Schwarzl and Struik can be employed to compensate for frequency dispersion of the modulus using no adjustable parameters. Measured quantities agree well with previously published values. Appendices are included which derive the resonant frequency shift due to damping in our specific experiment and which estimate the error introduced by the Schwarzl-Struik dispersion relation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00745570
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