Inelastic responses of swollen nitrile rubber under cyclic loading

Loo, Mei Sze and Le Cam, Jean Benoît and Andriyana, Andri and Robin, Eric (2018) Inelastic responses of swollen nitrile rubber under cyclic loading. Rubber Chemistry and Technology, 91 (1). pp. 136-150. ISSN 0035-9475, DOI

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Palm biodiesel is deemed a promising future fuel substitute for conventional diesel fuel. In line with this perspective, necessary changes in the existing diesel engine system are expected in order to address the issue of material compatibility. One typical degradation observed in rubber components exposed to aggressive solvent such as palm biodiesel during the service is swelling. Thus, the investigation of the effect of swelling on the mechanical response under cyclic loading is prerequisite for durability analysis of such components. In this study, filled and unfilled swollen nitrile rubbers are immersed in conventional diesel and palm biodiesel baths until a 5% swelling level is achieved. Both dry and swollen rubbers are subjected to uniaxial cyclic loading tests. The analysis of the mechanical responses has shown that swelling decreases inelastic effects such as hysteresis, stress softening, and permanent set. For both dry and swollen rubbers, fillers are found to have significant effects in the inelastic responses, whereas the effects of solvent and loading rate are comparable.

Item Type: Article
Funders: Ministry of Higher Education Malaysia through High Impact Research grant MOHE-HIR D000008-16001, University of Malaya through University of Malaya Research grant UMRG RP022B-13AET, Embassy of France in Malaysia, AIS Scientific Grant from Rennes Métropole (2012), Mission of Resources and Skills Technology (MRCT) grant from French National Center for Scientific Research (2012), Mission for Interdisciplinary (MI) grant from the French National Center for Scientific Research (2013)
Uncontrolled Keywords: Durability analysis; Fuel substitutes; Inelastic effects; Inelastic response; Material compatibility; Mechanical response; Rubber component; Uniaxial cyclic loadings
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 29 May 2019 07:15
Last Modified: 29 May 2019 07:15

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