Interference of stress and vibration relaxation processes in the sound frequency range
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An apparatus is described which allows one to study the mutual effect of stress-relaxation processes occurring for various deformations and vibrations of sound frequency. The effect of mechanical stress and stress relaxation is investigated for mechanical dynamical properties in samples of high-pressure polyethylene, isotactic polypropylene, polyamidoester on a base of anilinophthalein, and polyimide obtained by the solid-phase ring formation of polyamidoester. The effect of the supermolecular structure of polypropylene on the nature of the temperature dependence of the loss angle tangent is shown.
KeywordsPolyethylene Polypropylene Mechanical Stress Polyimide Dynamical Property
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- 1.G. L. Slonimskii and I. P. Alekseev, Dokl. Akad. Nauk,106, 1056 (1956).Google Scholar
- 2.G. I. Barenblat, Yu. I. Kozyrev, I. I. Malinin, D. Ya. Pavlov, and S. A. Shesterikov, Dokl. Akad. Nauk,166, 813 (1966).Google Scholar
- 3.Ch. L. Daugste, S. L. Skalozub, and Yu. S. Urzhumtsev, Mekh. Polim., No. 6, 1124 (1971).Google Scholar
- 4.G. M. Bartenev and L. A. Shelkovnikova, Mekh. Polim., No. 4, 720 (1972).Google Scholar
- 5.L. D. Landau and E. M. Lifshits, Theory of Elasticity, Addison-Wesley (1971).Google Scholar
- 6.G. O. Gorelik, Oscillations and Waves [in Russian], Moscow (1959), p. 102.Google Scholar