Phenomenological approach to a model of viscoanelastic media
نویسندگان
چکیده
The aim of this work is to report some general properties of phenomenological and state coefficients in Kluitenberg-Ciancio’s theory for viscoanelastic media of order one obtained as function of frequency in a previous paper. In particular, after the specification of the low and high frequencies region, under physical considerations characterized by limiting the values of some functions connected to mechanical phenomena, the trend of the aforementioned coefficients is investigated as function of the frequency. It has been possible, admitting the principle of entropy production, to determine some characteristics of the coefficients as function of frequency in order that this principle is satisfied. The experimental confirmation on a polymeric material, as PolyIsobutilene, of the so obtained results in the regions in which, in a first approximation, the medium shows a linear behaviour (low and high frequency region), has been obtained. M.S.C. 2000: 49M50; 35E05.
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تاریخ انتشار 2008