The influence of the parameters of nonlinear viscous elements on the modelling of characteristic properties of superplasticity processes

T.A. Beliakova, R.A. Vasin, I.A. Goncharov
Received: 26 January 2015; Accepted: 24 February 2015
This paper is written in Russian
Citation: T.A. Beliakova, R.A. Vasin, I.A. Goncharov. The influence of the parameters of nonlinear viscous elements on the modelling of characteristic properties of superplasticity processes. Letters on Materials, 2015, 5(1) 24-29
BibTex   DOI: 10.22226/2410-3535-2015-1-24-29

Abstract

In the paper a one-dimensional model with the mixed combination of three nonlinear viscous elements is considered, and the influence of the model parameters on the adequate description of the characteristic properties of the superplastic processes is inves-tigated. Inessential parameters are excluded analytically, and the types of the stress vs. strain rate dependencies, obtained by the numerical modelling, are classified. Domains in the parameter space of the nonlinear viscous elements are found where the su-perplastic curve is sigmoid.

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