Some revisions of fatigue crack growth characteristics of rubber

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63545058" target="_blank" >RIV/70883521:28610/21:63545058 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/chapter/10.1007/12_2020_72" target="_blank" >https://link.springer.com/chapter/10.1007/12_2020_72</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/12_2020_72" target="_blank" >10.1007/12_2020_72</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Some revisions of fatigue crack growth characteristics of rubber

Popis výsledku v původním jazyce

Fatigue crack growth (FCG) characteristic of rubber materials is a very important factor in determining the durability of the rubber products. Slight variations in compounding ingredients, mixing and the curing process or even in the loading conditions and several physical factors have an impact on the final FCG behaviour of rubber vulcanisates. Thus, possible inaccuracies in the experimentally determined FCG characteristics can have direct consequences on the development of durable rubber compounds. Therefore, the aim of this work is focused on the experimental validation of the FCG characteristics of rubber in comparison with the recently customary theoretical background and functions describing the relationship between the FCG rate and the tearing energy. From the literature survey, the weak points directly influencing the accuracy of the FCG characteristics in the experimental approach were identified. The first weak point is the transient point or discontinuity of the FCG characteristics within the region of the stable FCG. To follow on, a visible deviation of the experimentally determined data within the region of the stable FCG from the theoretical function is necessary to be validated. FCG analyses of plane strain tension samples based on ethylene propylene diene monomer (EPDM) rubber filled with a varied content of carbon black were performed using a Tear and Fatigue Analyzer (TFA (c), Coesfeld GmbH &amp; Co. KG, Germany). The FCG characteristics were plotted for a broad range of tearing energies. The intrinsic strength and the ultimate strength were determined. The region of the stable FCG was studied in detail. The continuous function of the stable FCG within the region was found, and thus, the presence of a transient point was refuted. Moreover, a specific equation was validated to fit the data into the region of the stable FCG compared to a previously preferred power-law with a higher accuracy.

Název v anglickém jazyce

Some revisions of fatigue crack growth characteristics of rubber

Popis výsledku anglicky

Fatigue crack growth (FCG) characteristic of rubber materials is a very important factor in determining the durability of the rubber products. Slight variations in compounding ingredients, mixing and the curing process or even in the loading conditions and several physical factors have an impact on the final FCG behaviour of rubber vulcanisates. Thus, possible inaccuracies in the experimentally determined FCG characteristics can have direct consequences on the development of durable rubber compounds. Therefore, the aim of this work is focused on the experimental validation of the FCG characteristics of rubber in comparison with the recently customary theoretical background and functions describing the relationship between the FCG rate and the tearing energy. From the literature survey, the weak points directly influencing the accuracy of the FCG characteristics in the experimental approach were identified. The first weak point is the transient point or discontinuity of the FCG characteristics within the region of the stable FCG. To follow on, a visible deviation of the experimentally determined data within the region of the stable FCG from the theoretical function is necessary to be validated. FCG analyses of plane strain tension samples based on ethylene propylene diene monomer (EPDM) rubber filled with a varied content of carbon black were performed using a Tear and Fatigue Analyzer (TFA (c), Coesfeld GmbH &amp; Co. KG, Germany). The FCG characteristics were plotted for a broad range of tearing energies. The intrinsic strength and the ultimate strength were determined. The region of the stable FCG was studied in detail. The continuous function of the stable FCG within the region was found, and thus, the presence of a transient point was refuted. Moreover, a specific equation was validated to fit the data into the region of the stable FCG compared to a previously preferred power-law with a higher accuracy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Fatigue crack growth in rubber materials : experiments and modelling

ISSN

0065-3195

e-ISSN

—

Svazek periodika

286

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

000691737500002

EID výsledku v databázi Scopus

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