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A new method for measuring the complex shear modulus of a viscoelastic material coupled with an elastic material

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Summary

In the mechanical-dynamic characterization of viscoelastic materials as a function of temperature, considerable difficulties are encountered, due to the change of joint, to the strong variation of the modulus of elasticity and the increase ofQ −1.

This paper deals with a theoretical and experimental method for the determination of the shear modulusG′2 and of the internal lossQ 2 −1 of a viscoelastic material by measurements at torsional vibration of a composite test-piece. Experimental measurements were carried out on composite test-pieces by gluing of polystyrene and of pinchbeck. The results obtained are in good agreement with the values found by other methods.

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Author notes

  1. L. Szilágyi & G. Locati

    Present address: Industrial Chemistry Dept. of Polytechnic Institute of Milan, Italy

Authors and Affiliations

  1. A.I.C.M.O. at the Polytechnic of Milan, Italy

    L. Szilágyi

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  1. L. Szilágyi
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  2. G. Locati
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Szilágyi, L., Locati, G. A new method for measuring the complex shear modulus of a viscoelastic material coupled with an elastic material. Rheol Acta 9, 535–541 (1970). https://doi.org/10.1007/BF01985464

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  • DOI: https://doi.org/10.1007/BF01985464

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