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Hygrothermal effects on the translaminar fracture toughness of a highly toughened aerospace CFRP: Experimental characterisation and model prediction

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Hygrothermal effects on the translaminar fracture toughness of a highly toughened aerospace CFRP Experimental characterisation and model prediction_revised manuscript.docxFile embargoed until 02 August 20222.46 MBMicrosoft Word    Request a copy
Title: Hygrothermal effects on the translaminar fracture toughness of a highly toughened aerospace CFRP: Experimental characterisation and model prediction
Authors: Yu, B
Katafiasz, TJ
Nguyen, S
Allegri, G
Finlayson, J
Greenhalgh, ES
Pinho, ST
Pimenta, S
Item Type: Journal Article
Abstract: The translaminar fracture toughness and its dependence on the environmental condition are key considerations in designing aerospace-grade composites with a high damage tolerance to severe service conditions in terms of temperature and moisture. The present work characterises and models the hygrothermal effects on the translaminar fracture toughness of an interlaminar toughened aerospace carbon/epoxy composite under six environmental conditions: −55 °C, 23 °C, and 90 °C, for both ‘dry’ (i.e. moisture free) and ‘wet’ (fully moisture-saturated) specimens. Cross-ply compact-tension experiments show that the translaminar fracture toughness increases with the rise of temperature for both dry and wet conditions with the latter exhibiting a much greater increase. A model to predict the effect of moisture and temperature on the translaminar fracture toughness is here proposed and developed. This approach yields good agreement with experimental results, and it allows an improved understanding of the complex synergistic effects of interfacial properties on the overall translaminar toughening mechanisms.
Issue Date: Nov-2021
Date of Acceptance: 26-Jul-2021
URI: http://hdl.handle.net/10044/1/91259
DOI: 10.1016/j.compositesa.2021.106582
ISSN: 1359-835X
Publisher: Elsevier BV
Start Page: 1
End Page: 12
Journal / Book Title: Composites Part A: Applied Science and Manufacturing
Volume: 150
Copyright Statement: © 2021 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: Innovate UK
Innovate UK
Funder's Grant Number: 113085
17017 - 113190
Keywords: Materials
0901 Aerospace Engineering
0912 Materials Engineering
0913 Mechanical Engineering
Publication Status: Published
Embargo Date: 2022-08-02
Article Number: 106582
Online Publication Date: 2021-08-03
Appears in Collections:Aeronautics



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