In-situ holotomography to study longitudinal debonding in glass fibre-reinforced composites

 The formation of fibre breaks governs the longitudinal tensile failure of a unidirectional ply. It is widely believed that matrix plasticity, matrix cracking, and fibre-matrix debonding created near these fibre breaks help reduce the resulting stress concentrations. Therefore, to determine if matr...

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Main Authors: Yentl Swolfs, Thanasis Chatziathanasiou, Martin Diehl, Mahoor Mehdikhani, Christian Breite
Format: Article
Language:deu
Published: NDT.net 2025-02-01
Series:e-Journal of Nondestructive Testing
Online Access:https://www.ndt.net/search/docs.php3?id=30765
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author Yentl Swolfs
Thanasis Chatziathanasiou
Martin Diehl
Mahoor Mehdikhani
Christian Breite
author_facet Yentl Swolfs
Thanasis Chatziathanasiou
Martin Diehl
Mahoor Mehdikhani
Christian Breite
author_sort Yentl Swolfs
collection DOAJ
description  The formation of fibre breaks governs the longitudinal tensile failure of a unidirectional ply. It is widely believed that matrix plasticity, matrix cracking, and fibre-matrix debonding created near these fibre breaks help reduce the resulting stress concentrations. Therefore, to determine if matrix cracking and fibre-matrix debonding surrounding fibre breaks occur in a glass fibre-epoxy composite, we performed in-situ tensile tests combined with holotomography at a resolution of 150 nm. Despite their presence in single-fibre composites manufactured with the same constituents, they were absent in regular composites. This suggests that single-fibre composites are not representative of regular composites. The study provides fresh insight into the damage mechanisms in these materials. 
format Article
id doaj-art-26140ffd53c9479db27d2e0b32dd2340
institution Kabale University
issn 1435-4934
language deu
publishDate 2025-02-01
publisher NDT.net
record_format Article
series e-Journal of Nondestructive Testing
spelling doaj-art-26140ffd53c9479db27d2e0b32dd23402025-02-06T10:48:19ZdeuNDT.nete-Journal of Nondestructive Testing1435-49342025-02-0130210.58286/30765In-situ holotomography to study longitudinal debonding in glass fibre-reinforced compositesYentl SwolfsThanasis ChatziathanasiouMartin DiehlMahoor MehdikhaniChristian Breite  The formation of fibre breaks governs the longitudinal tensile failure of a unidirectional ply. It is widely believed that matrix plasticity, matrix cracking, and fibre-matrix debonding created near these fibre breaks help reduce the resulting stress concentrations. Therefore, to determine if matrix cracking and fibre-matrix debonding surrounding fibre breaks occur in a glass fibre-epoxy composite, we performed in-situ tensile tests combined with holotomography at a resolution of 150 nm. Despite their presence in single-fibre composites manufactured with the same constituents, they were absent in regular composites. This suggests that single-fibre composites are not representative of regular composites. The study provides fresh insight into the damage mechanisms in these materials.  https://www.ndt.net/search/docs.php3?id=30765
spellingShingle Yentl Swolfs
Thanasis Chatziathanasiou
Martin Diehl
Mahoor Mehdikhani
Christian Breite
In-situ holotomography to study longitudinal debonding in glass fibre-reinforced composites
e-Journal of Nondestructive Testing
title In-situ holotomography to study longitudinal debonding in glass fibre-reinforced composites
title_full In-situ holotomography to study longitudinal debonding in glass fibre-reinforced composites
title_fullStr In-situ holotomography to study longitudinal debonding in glass fibre-reinforced composites
title_full_unstemmed In-situ holotomography to study longitudinal debonding in glass fibre-reinforced composites
title_short In-situ holotomography to study longitudinal debonding in glass fibre-reinforced composites
title_sort in situ holotomography to study longitudinal debonding in glass fibre reinforced composites
url https://www.ndt.net/search/docs.php3?id=30765
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AT thanasischatziathanasiou insituholotomographytostudylongitudinaldebondinginglassfibrereinforcedcomposites
AT martindiehl insituholotomographytostudylongitudinaldebondinginglassfibrereinforcedcomposites
AT mahoormehdikhani insituholotomographytostudylongitudinaldebondinginglassfibrereinforcedcomposites
AT christianbreite insituholotomographytostudylongitudinaldebondinginglassfibrereinforcedcomposites