Interaction between nacre-like CFRP mesolayers and long-fibre interlayers

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Title: Interaction between nacre-like CFRP mesolayers and long-fibre interlayers
Authors: Narducci, F
Pinho, ST
Item Type: Journal Article
Abstract: In this paper, a carbon-fibre/epoxy (CF) composite with nacre-inspired tiled micro-structure is designed and synthesised. The aim is to investigate the interaction between the CF discontinuous micro-structure and continuous glass-fibre/epoxy (GF) layers, which are intended to act as crack stoppers, similarly to the organic interlayers that separate layers of ceramic tiles in natural nacre. Firstly, we use a GF skin to trigger unstable failure in nacre-like mesolayers, and show how the damage mode in the latter changes from pull-out to brittle fibre fracture due to the interaction with the GF skin. Secondly, we demonstrate how continuous GF interlayers can succeed in arresting unstable crack propagation in the nacre mesolayers. Furthermore, we show that they can also change the morphology of damage in the nacre, promoting a transition from brittle tile fracture to more damage-tolerant tile pull-out.
Issue Date: 15-Sep-2018
Date of Acceptance: 18-May-2018
URI: http://hdl.handle.net/10044/1/60235
DOI: https://doi.org/10.1016/j.compstruct.2018.05.103
ISSN: 1879-1085
Publisher: Elsevier
Start Page: 921
End Page: 928
Journal / Book Title: Composite Structures
Volume: 200
Copyright Statement: © 2018 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/.
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/M002500/1
Keywords: Science & Technology
Technology
Mechanics
Materials Science, Composites
Materials Science
Microstructures
Fibre-reinforced composite material
Nacre
Fractography
Biomimetics
BIOLOGICAL-MATERIALS
MECHANICS
DUCTILITY
MOTHER
09 Engineering
Materials
Publication Status: Published
Online Publication Date: 2018-05-23
Appears in Collections:Faculty of Engineering
Aeronautics



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