Herringbone-Bouligand CFRP structures: A new tailorable damage-tolerant solution for damage containment and reduced delaminations
File(s)Manuscript_Herringbone_accepted.pdf (5.4 MB)
Accepted version
Author(s)
Mencattelli, L
Pinho, ST
Type
Journal Article
Abstract
In this work, we design, prototype, test and analyse the first high-performance Herringbone-Bouligand microstructure (with Carbon Fibre Reinforced Plastic (CFRP)) inspired to the high-impact-resistant mantis shrimp's dactyl club. To this end, we devised the first prototyping procedure to manufacture point-by-point tailorable Herringbone-Bouligand CFRP microstructures; this was based on the micro-moulding of uncured CFRP prepreg, and led to mimicking features of the club microstructure never achieved before with CFRPs. We investigated the damage tolerance of the prototyped Herringbone-Bouligand CFRP laminates, compared against ‘classical’ Bouligand CFRP laminates, using quasi-static indentation tests. Our test results show that the Herringbone-Bouligand microstructure resulted in delayed onset of delaminations, reduced in-plane spreading of damage, increased energy dissipation capability, and in the containment of damage within the tailored Herringbone-Bouligand region. We conclude that Herringbone-Bouligand CFRP microstructures offer an excellent tailorable damage-tolerant solution with great potential for composite applications where resistance to through-the-thickness loads is paramount.
Date Issued
2020-04-12
Online Publication Date
2021-02-03T00:01:31Z
Date Acceptance
2020-01-29
ISSN
0266-3538
Publisher
Elsevier BV
Start Page
1
End Page
13
Journal / Book Title
Composites Science and Technology
Volume
190
Copyright Statement
© 2020 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
European Union
Identifier
https://www.sciencedirect.com/science/article/pii/S0266353819329203?via%3Dihub
Grant Number
European Union
Subjects
Science & Technology
Technology
Materials Science, Composites
Materials Science
Carbon fibres
Bio-inspired
Herringbone-Bouligand
Damage tolerance
Damage mechanics
FAILURE MECHANISMS
TOUGHNESS
INTERFACE
09 Engineering
Materials
Publication Status
Published
Article Number
108047
Date Publish Online
2020-02-03