Virtual testing framework for hybrid aligned discontinuous composites
File(s)
Author(s)
Henry, J
Pimenta, S
Type
Journal Article
Abstract
The inherent brittleness of conventional high-performance composites can be addressed by the use of discontinuous fibres or hybridisation of fibre-types. In this paper, we propose the first models in the literature to predict the stress-strain curve of hybrid discontinuous composites, with either a brick-and-mortar or an intermingled-fibre microstructure. The models consider a shear-lag stress-transfer between the hybrid reinforcement units, and show that this stress transfer becomes less efficient with hybridisation. The model for intermingled-fibre hybrids also considers stochastic fibre strengths and fibre fragmentation, and can therefore predict a brittle or pseudo-ductile response of hybrid discontinuous composites as observed experimentally, as well as hybrid effects. These models can be used to perform virtual testing and microstructural design of hybrid aligned discontinuous composites.
Date Issued
2018-05-03
Date Acceptance
2017-12-07
ISSN
0266-3538
Publisher
ELSEVIER SCI LTD
Start Page
259
End Page
272
Journal / Book Title
COMPOSITES SCIENCE AND TECHNOLOGY
Volume
159
Copyright Statement
© 2017 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000436214100030&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Materials Science, Composites
Materials Science
Hybrid composites
Short-fibre composites
Non-linear behaviour
Modelling
Stress transfer
SHEAR-LAG MODEL
FIBER COMPOSITES
PSEUDO-DUCTILITY
CARBON-FIBER
REINFORCED COMPOSITES
MECHANICAL-PROPERTIES
BIOLOGICAL-MATERIALS
TENSILE-STRENGTH
FAILURE
MATRIX
09 Engineering
Materials
Publication Status
Published
Date Publish Online
2017-12-13