CUED Publications database

Indentation response of a 3D non-woven carbon-fibre composite

Das, S and Kandan, K and Kazemahvazi, S and Wadley, HNG and Deshpande, VS (2018) Indentation response of a 3D non-woven carbon-fibre composite. Journal of Materials Research, 33. pp. 317-329. ISSN 0884-2914

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Abstract

Copyright © Materials Research Society 2018. The indentation response of a 3D noninterlaced composite comprising three sets of orthogonal carbon-fibre tows in an epoxy matrix is investigated. The 3D composites have a near isotropic and ductile indentation response. The deformation mode includes the formation of multiple kinks in the tows aligned with the indentation direction and shearing of the orthogonally oriented tows. Finite element (FE) calculations are also reported wherein tows in one direction are explicitly modeled with the other two sets of orthogonal tows and the matrix pockets treated as an effective homogenous medium. The calculations capture the indentation response in the direction of the explicitly modeled tows with excellent fidelity but under-predict the indentation strength in the other directions. In contrast to anisotropic and brittle laminated composites, 3D noninterlaced composites have a near isotropic and ductile indentation response making them strong candidates for application as materials to resist impact loading.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 09 Dec 2017 20:15
Last Modified: 15 Sep 2020 05:43
DOI: 10.1557/jmr.2017.481