Failure mechanisms of biological crossed-lamellar microstructures applied to synthetic high-performance fibre-reinforced composites
File(s)
Author(s)
Häsä, R
Pinho, ST
Type
Journal Article
Abstract
This paper investigates whether the toughening mechanisms of a biological crossed-lamellar microstructure can be reproduced in a synthetic high-performance carbon fibre/epoxy matrix composite. The mechanics of the failure process in synthetic crossed-lamellar microstructures was investigated using the Finite Element Method. This enabled the design of a high-performance carbon-fibre reinforced polymer (CFRP) with such microstructure. Two different procedures were then developed to synthesise the first crossed-lamellar microstructures in CFRP in the literature. Test specimens were subsequently manufactured. Three-point bend tests were carried out in an SEM environment, showcasing the damage diffusion capability of the microstructure under stable conditions. The results show that the crossed-lamellar microstructure can be synthesised in CFRP with good accuracy, and that the mechanical toughening mechanisms associated with the natural crossed-lamellar microstructures can be reproduced in this synthetic material.
Date Issued
2019-04-01
Date Acceptance
2018-12-10
Citation
Journal of the Mechanics and Physics of Solids, 2019, 125, pp.53-73
ISSN
0022-5096
Publisher
Elsevier
Start Page
53
End Page
73
Journal / Book Title
Journal of the Mechanics and Physics of Solids
Volume
125
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
Engineering & Physical Science Research Council (EPSRC)
Grant Number
EP/M002500/1
Subjects
Science & Technology
Technology
Physical Sciences
Materials Science, Multidisciplinary
Mechanics
Physics, Condensed Matter
Materials Science
Physics
Microstructures
Fibre-reinforced composite material
Mechanical testing
Fractography
Biomimetics
GIGAS CONCH SHELL
STROMBUS-GIGAS
FRACTURE MECHANISMS
PSEUDO-DUCTILITY
QUEEN CONCH
TOUGHNESS
BEHAVIOR
MATRIX
01 Mathematical Sciences
02 Physical Sciences
09 Engineering
Mechanical Engineering & Transports
Publication Status
Published
Date Publish Online
2018-12-12