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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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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 |
Article Number: | 106582 |
Online Publication Date: | 2021-08-03 |
Appears in Collections: | Aeronautics |
This item is licensed under a Creative Commons License