线性聚合物体系中变形过程的不稳定性

IF 0.9 4区物理与天体物理 Q4 PHYSICS, APPLIED

Technical Physics Letters Pub Date : 2025-06-25 DOI:10.1134/S106378502570004X

E. N. Perevoznikov, A. S. Stepashkina

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引用次数: 0

摘要

本文主要研究基于变形过程动力学模型的线性聚合物体系弛豫过程不稳定性的影响。得到了过程特性扰动的方程组，并给出了根据经验松弛曲线计算的模型参数的扰动谱。得到了失稳条件。证明了弛豫过程在弱非平衡线性系统中是稳定的；随着不平衡和非线性的增加，变形特性出现长波波动，特别是在宏观上表现为振动松弛效应。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Instabilities of Deformation Processes in Linear Polymer Systems

The work is devoted to the study of the effects of instability of the relaxation process in linear polymer systems based on a dynamic model of deformation processes. A system of equations for perturbations of the process characteristics is obtained, and a spectrum of perturbations is shown depending on the model parameters calculated from empirical relaxation curves. Instability conditions are obtained. It is shown that relaxation processes are stable in weakly nonequilibrium linear systems; with increasing disequilibrium and nonlinearity, long-wave fluctuations in deformation characteristics occur, which, in particular, macroscopically manifest themselves as a vibration relaxation effect.

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来源期刊

Technical Physics Letters 物理-物理：应用

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

2-4 weeks

期刊介绍： Technical Physics Letters is a companion journal to Technical Physics and offers rapid publication of developments in theoretical and experimental physics with potential technological applications. Recent emphasis has included many papers on gas lasers and on lasing in semiconductors, as well as many reports on high Tc superconductivity. The excellent coverage of plasma physics seen in the parent journal, Technical Physics, is also present here with quick communication of developments in theoretical and experimental work in all fields with probable technical applications. Topics covered are basic and applied physics; plasma physics; solid state physics; physical electronics; accelerators; microwave electron devices; holography.