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Elastic behaviour characterisation of vulcanised rubber for finite element analysis

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Author(s): Luksameevanish, V.

Journal: Songklanakarin Journal of Science and Technology
ISSN 0125-3395

Volume: 22;
Issue: 3;
Start page: 367;
Date: 2000;
Original page

Keywords: rubber | elastic properties | finite element analysis

ABSTRACT
Characterisation of vulcanised rubber elastic behaviour, using a strain energy function proposed by Rivlin is employed here. The relation of the reduced true stress as a cubic function of (I1-3) is simplified to describe three simple deformation modes of rubber, following the study of Yeoh. Three simple experiments of uniaxial tension, uniaxial compression and simple shear were then performed in order to determine the strain energy constants- the charactistics of the compound for use in the Finite Element Analysis software. Agreement of experimental and FEA was found in the case of filled NR compounds, Having carbon black filler up to 70 phr. Disagreement of the comparison was clearly seen in the high filled SBR compounds.
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