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首页> 外文会议>International Conference on Computational Science and Its Applications(ICCSA 2006) pt.1; 20060508-11; Glasgow(GB) >Phenomenological and State Coefficients in Viscoanelastic Medium of Order One (with Memory)
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Phenomenological and State Coefficients in Viscoanelastic Medium of Order One (with Memory)

机译：一阶粘弹性介质的现象学和状态系数（带记忆）

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摘要

The aim of this work is to indicate a method to measure experimentally some phenomenological an state coefficients, and so to verify some inequalities that follow from principle of entropy production. In particular, we will consider the Kluitenberg-Ciancio model for a visco-anelastic medium of order one with memory and the relative rheological equation in which, neglecting cross effects between viscous and inelastic flow, four phenomenological an state coefficients appear. Assuming an harmonic deformation as cause and the stress as effect we will compare the solution of the Kluitenberg-Ciancio's equation with a well known expression of the stress obtained, by experimentally considerations in the linear response theory, as function of the frequency of deformation at a constant temperature. This comparison will be able to determine the phenomenological an state coefficients as function of frequency dependent quantities experimentally measurable. This method will be applied to polymeric materials as Polyisobutilene.
机译：这项工作的目的是指出一种通过实验测量某些现象学状态系数的方法，从而验证根据熵产生原理产生的一些不等式。特别地，我们将考虑具有记忆力和相对流变方程的一阶粘弹性材料的Kluitenberg-Ciancio模型，其中忽略了粘性和非弹性流动之间的交叉影响，出现了四个现象学和状态系数。假设谐波变形是起因，应力是效果，我们将通过线性响应理论中的实验考虑，将Kluitenberg-Ciancio方程的解与获得的应力的公知表达式进行比较，该表达式是在a处变形频率的函数恒温。这种比较将能够确定现象学状态系数，该系数是实验可测量的频率相关量的函数。该方法将应用于聚异戊二烯等聚合物材料。

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