IRUS Total

Characterising and predicting the relationship between translaminar fracture toughness and pull-out length distributions under distinct temperatures

File Description SizeFormat 
Yu et al 2022 - manuscript.pdfAccepted version2.46 MBAdobe PDFView/Open
Title: Characterising and predicting the relationship between translaminar fracture toughness and pull-out length distributions under distinct temperatures
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 reflects the damage tolerance of a fibre-reinforced composite under longitudinal tension, which often governs the final failure of structures. One of the main energy-dissipation mechanisms that contributes to the translaminar toughness of composites is the fibre pull-out process. The present study aims to quantify and model the statistical distribution of fibre pull-out lengths formed on the translaminar fracture surface of composites, for the first time in the literature; this is done under different temperatures, so that the relationship between pull-out length distributions, micromechanical properties and the translaminar fracture toughness can be established. The fracture surfaces of cross-ply compact tension specimens tested under three different temperatures have been scanned through X-ray computed tomography to quantify the extent of fibre pull-out on the fracture surfaces; the distribution of pull-out lengths showed alarger average and larger variability with an increase in temperature, which also lead to an increase in translaminar fracture toughness. A similar trend has been captured by the proposed analytical model, which predicts the pull-out length distribution based on the analysis of quasi-fractal idealizations of the fracture surface, yielding an overall accuracy of more than 85%. This article is part of the theme issue 'Ageing and durability of composite materials'.
Issue Date: 9-Jan-2023
Date of Acceptance: 11-Sep-2022
URI: http://hdl.handle.net/10044/1/100555
DOI: 10.1098/rsta.2021.0220
ISSN: 1364-503X
Publisher: The Royal Society
Journal / Book Title: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume: 381
Issue: 2240
Copyright Statement: © 2022 The Author(s). Published by the Royal Society. All rights reserved. This accepted version is available under a CC-BY Attribution License (https://creativecommons.org/licenses/by/4.0/)
Sponsor/Funder: Innovate UK
Funder's Grant Number: 113190
Keywords: General Science & Technology
Publication Status: Published
Article Number: ARTN 20210220
Online Publication Date: 2022-11-21
Appears in Collections:Mechanical Engineering
Faculty of Engineering

This item is licensed under a Creative Commons License Creative Commons