Quantitative Analysis of Kinetics Accumulation of Damage in the Structure Polymer Materials at a Stretching

Nizina, T.A.; Селяев, В П; Nizin, Dmitriy; Kanaeva, N. S.

doi:10.33979/2073-7416-2020-88-2-77-89

Cited by 3 publications

(1 citation statement)

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“…The method of determining the coordinates of "critical" points on deformation curves of polymer samples during the loading process is outlined in [3,12]. To determine fractality index μ when analyzing the section of the deformation curve of polymer composites, we used the sequence m of embedded partitions where m = 2 n , where n = 0, 1, 2, 3, 4.…”

Section: Methodsmentioning

confidence: 99%

Method of quantitative assessment of changes in “critical” levels of elastic-strength parameters of epoxy polymers in the process of natural climatic aging

Nizina,

Nizin,

Kanaeva

2024

E3S Web Conf.

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The method for quantitative analysis of the kinetics of damage accumulation in the structure of series of polymer samples at stretching is proposed. The proposed approach is to calculate the fractality indices of time series by means of a minimum coverage method, followed by a failure frequency analysis, while increasing the levels of applied stresses and relative deformations. Epoxy polymer based on ED-20 resin hardened by Etal-1460 hardener, was selected as the object of the study. The results of the study of changes in elastic-strength indicators and levels of “critical” stresses and relative elongation in the stretching of epoxy polymer during the natural climate impact are presented.

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Section: Methodsmentioning

confidence: 99%