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Transverse single-fibre test for interfacial debonding in composites: 1. Experimental observations
Luleå University of Technology.
Luleå University of Technology.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0001-9649-8621
Luleå University of Technology.
1997 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 28, no 4, p. 309-315Article in journal (Refereed) Published
Abstract [en]

Micromechanical methods for studies of interfacial debonding in fibre composites provide the possibility of comparing different materials. Since most previous composite studies focus on shear loading of the fibre matrix interface, the debonding process in single-fibre glass fibre/epoxy composites was studied in situ by optical microscopy during transverse tensile loading. Specimens had cylindrical debond cracks of known dimensions created in fragmentation tests. Mechanisms for debond growth were described for two materials where the difference was in glass fibre surface treatment. As the debonds reached a critical size in the arc (circumferential) direction, unstable debond growth occurred in the fibre direction. The debond angle at instability was fairly similar for both materials, although the material based on glass fibre treated with a coupling agent reached twice as high stress before instability.

Place, publisher, year, edition, pages
1997. Vol. 28, no 4, p. 309-315
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-3451DOI: 10.1016/S1359-835X(96)00123-6ISI: A1997WP64200002Scopus ID: 2-s2.0-0030715482Local ID: 145f87b0-fe2d-11db-b19d-000ea68e967bOAI: oai:DiVA.org:ltu-3451DiVA, id: diva2:976309
Note

Godkänd; 1997; 20070509 (cira)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2022-01-11Bibliographically approved

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Varna, Janis

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