Finite Element Modelling Epoxy/Clay Nanocomposites

Article

Chia, Julian Y. H., Hbaieb, Kais and Wang, Q. X.. 2007. "Finite Element Modelling Epoxy/Clay Nanocomposites." Key Engineering Materials. 334-335, pp. 785-788. https://doi.org/10.4028/www.scientific.net/KEM.334-335.785
Article Title

Finite Element Modelling Epoxy/Clay Nanocomposites

ERA Journal ID8144
Article CategoryArticle
AuthorsChia, Julian Y. H. (Author), Hbaieb, Kais (Author) and Wang, Q. X. (Author)
Journal TitleKey Engineering Materials
Journal Citation334-335, pp. 785-788
Number of Pages4
Year2007
Place of PublicationSwitzerland
ISSN1013-9826
Digital Object Identifier (DOI)https://doi.org/10.4028/www.scientific.net/KEM.334-335.785
Web Address (URL)https://www.scientific.net/KEM.334-335.785
Abstract

A full 3D finite element method has been used to understand how nano-clay particles affect the mechanical properties of an epoxy/clay nanocomposite. The epoxy/clay nanocomposite has been modelled as a representative volume element (RVE) containing intercalated clay platelets that internally delaminates at the gallery layer upon satisfying an energy criterion, and an epoxy matrix that is elastic-plastic. A cohesive traction-displacement law is used to model the clay gallery behaviour until failure. For clay volume fractions >1%, clay particle interaction is observed to develop during uniaxial tension, the nanocomposite stiffness becomes non-linearly dependent on the clay volume fraction, and the Mori-Tanaka model overestimates the stiffness. Failure of the clay gallery is not observed and is believed to have no influence on the ultimate tensile strength of the nanocomposite.

KeywordsClay nanocomposite; Cohesive element; Finite element; Interaction; Stiffness
ANZSRC Field of Research 2020401602. Composite and hybrid materials
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Byline AffiliationsInstitute of Materials Research and Engineering, Singapore
Institute of High Performance Computing, Singapore
Institution of OriginUniversity of Southern Queensland
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