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Article

Effect of the Strain Rate on Damage in Filled EPDM during Single and Cyclic Loadings

1
Centre Català del Plàstic (CCP)—Universitat Politècnica de Catalunya Barcelona Tech (EEBE-UPC), Av. D’Eduard Maristany, 16, 08019 Barcelona, Spain
2
Faculty of Engineering and Natural Sciences, Materials Science and Nano Engineering, Sabanci University, Orhanli, Tuzla, Istanbul 34956, Turkey
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Sabanci University Integrated Manufacturing Technologies Research and Application Center & Composite Technologies Center of Excellence, Teknopark Istanbul, Pendik, Istanbul 34906, Turkey
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Mines ParisTech, CEMEF—Centre de Mise en Forme des Matériaux, UMR CNRS 7635, PSL Research University, CS 10207, 06904 Sophia-Antipolis, France
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Mat-xper, 06560 Valbonne, France
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(12), 3021; https://doi.org/10.3390/polym12123021
Received: 19 November 2020 / Revised: 2 December 2020 / Accepted: 14 December 2020 / Published: 17 December 2020
(This article belongs to the Special Issue Fundamentals in Polymers Revealed by Non-destructive Methods)
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. View Full-Text
Keywords: digital image correlation; damage; infra-red thermography; self-heating; EPDM digital image correlation; damage; infra-red thermography; self-heating; EPDM
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MDPI and ACS Style

Candau, N.; Oguz, O.; Peuvrel-Disdier, E.; Bouvard, J.-L.; Maspoch, M.L.; Corvec, G.; Pradille, C.; Billon, N. Effect of the Strain Rate on Damage in Filled EPDM during Single and Cyclic Loadings. Polymers 2020, 12, 3021. https://doi.org/10.3390/polym12123021

AMA Style

Candau N, Oguz O, Peuvrel-Disdier E, Bouvard J-L, Maspoch ML, Corvec G, Pradille C, Billon N. Effect of the Strain Rate on Damage in Filled EPDM during Single and Cyclic Loadings. Polymers. 2020; 12(12):3021. https://doi.org/10.3390/polym12123021

Chicago/Turabian Style

Candau, Nicolas, Oguzhan Oguz, Edith Peuvrel-Disdier, Jean-Luc Bouvard, María L. Maspoch, Guillaume Corvec, Christophe Pradille, and Noëlle Billon. 2020. "Effect of the Strain Rate on Damage in Filled EPDM during Single and Cyclic Loadings" Polymers 12, no. 12: 3021. https://doi.org/10.3390/polym12123021

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