| Autor: |
N. S. Kanaeva, D. R. Nizin, Selyaev Vladimir P |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Russian Journal of Building Construction and Architecture. :63-71 |
| ISSN: |
2542-0526 |
| DOI: |
10.36622/vstu.2021.52.4.006 |
| Popis: |
Statement of the problem. In the current study we look at the change in the elastic-strength performance and kinetics of damage accumulation in epoxy polymers under tensile loads in the control state and after full-scale climatic exposure during one calendar year were studied. Damage accumulation kinetics was calculated based on the author's method using methods of fractal analysis of deformation curves for polymer materials samples under tension.Results. We proposed specific index θ to quantify the total number of damages per unit of strength,where its accumulation leads to the destruction of polymers. We obtained approximating dependences that describe the relationship between specific index θ and tensile strength of epoxy polymers.Consclusion. The study has shown that the Etal-247 epoxy resin-based polymer cured withEtal-1440 amine hardener has the most stable properties under the full-scale climatic exposure. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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