Effect of the strain rate on damage in filled epdm during single and cyclic loadings

Candau, Nicolas and Oğuz, Oğuzhan and Peuvrel-Disdier, Edith and Bouvard, Jean Luc and Maspoch, María Lluïsa and Corvec, Guillaume and Pradille, Christophe and Billon, Noëlle (2020) Effect of the strain rate on damage in filled epdm during single and cyclic loadings. Polymers, 12 (12). ISSN 2073-4360

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The effect of the strain rate on damage in carbon black filled Ethylene Propylene Diene Monomer rubber (EPDM)stretched during single and multiple uniaxial loading is investigated. This has been performed by analyzing the stress–strain response, the evolution of damage by Digital Image Correlation (DIC), the associated dissipative heat source by InfraRed thermography (IR), and the chains network damage by swelling. The strain rates were selected to cover the transition from quasi-static to medium strain rate conditions. In single loading conditions, the increase of the strain rate yields in a preferential damage of the filler network while the rubber network is preserved. Such damage is accompanied by a stress softening and an adiabatic heat source rise. Conversely, increasing the strain rate in cyclic loading conditions yields in a filler network accommodation and a high self-heating whose combined effect is proposed as a possible cause of the ability of filled EPDM to limit damage by reducing cavities opening during loading, and favoring cavities closing upon unloading.
Item Type: Article
Uncontrolled Keywords: Damage; Digital image correlation; EPDM; Infra-red thermography; Self-heating
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Materials Science & Eng.
Faculty of Engineering and Natural Sciences
Integrated Manufacturing Technologies Research and Application Center
Depositing User: Oğuzhan Oğuz
Date Deposited: 04 Aug 2023 19:06
Last Modified: 04 Aug 2023 19:06
URI: https://research.sabanciuniv.edu/id/eprint/46961

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