Please use this identifier to cite or link to this item:
Publisher DOI: 10.3390/ma15030890
Title: Fragmentation of beaded fibres in a composite
Language: English
Authors: Rodricks, Carol Winnifred 
Greenfeld, Israel 
Fiedler, Bodo  
Wagner, Hanoch Daniel 
Keywords: interface; beaded fibre composite; structural modification; mechanical interlocking; fragmentation test
Issue Date: 24-Jan-2022
Publisher: Multidisciplinary Digital Publishing Institute
Source: Materials 15 (3): 890 (2022)
Abstract (english): 
The fibre-matrix interface plays an important role in the overall mechanical behaviour of a fibre-reinforced composite, but the classical approach to improving the interface through chemical sizing is bounded by the materials’ properties. By contrast, structural and/or geometrical modification of the interface may provide mechanical interlocking and have wider possibilities and benefits. Here we investigate the introduction of polymer beads along the interface of a fibre and validate their contribution by a single fibre fragmentation test. Using glass fibres and the same epoxy system for both matrix and beads, an increase of 17.5% is observed in the interfacial shear strength of the beaded fibres compared to fibres with no polymer beads. This increase should lead to a similar improvement in the strength and toughness of a beaded fibre composite when short fibres are used. The beads were also seen to stabilise the fragmentation process of a fibre by reducing the scatter in fragment density at a given strain. A case could also be made for a critical beads number—4 beads in our experimental system—to describe interfacial shear strength, analogous to a critical length used in fibre composites.
DOI: 10.15480/882.4151
ISSN: 1996-1944
Journal: Materials 
Other Identifiers: doi: 10.3390/ma15030890
Institute: Kunststoffe und Verbundwerkstoffe M-11 
Document Type: Article
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
Appears in Collections:Publications with fulltext

Files in This Item:
File Description SizeFormat
materials-15-00890-v4.pdf5,49 MBAdobe PDFView/Open
Show full item record

Page view(s)

Last Week
Last month
checked on Jun 9, 2023


checked on Jun 9, 2023

Google ScholarTM


Note about this record

Cite this record


This item is licensed under a Creative Commons License Creative Commons