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Fibre fragment distribution in a single-fibre composite tension test
University of Latvia.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-5210-4341
Kyoto University.
2001 (English)In: Composites Part B: Engineering, ISSN 1359-8368, E-ISSN 1879-1069, Vol. 32, no 4, p. 323-332Article in journal (Refereed) Published
Abstract [en]

Single fibre fragmentation tests are performed for brittle fibres with Weibull strength distribution and different surface treatments. The fragmentation process is modelled and closed-form expressions for break spacing distribution are obtained. The model accounts for the effect of finite fibre length on the initial fragmentation as well as for break interaction on the advanced fragmentation stage. It is assumed that the exclusion zone due to fibre-matrix interface failure and stress recovery in the fibre is linearly dependent on the applied load. This assumption is validated experimentally. The derived theoretical average fragment length dependence on applied load is used to determine the fibre strength distribution parameters and the effective interfacial shear stress for carbon/epoxy single fibre composites with different fibre surface treatment and for glass/vinylester single fibre composite. Fragment length distribution is predicted for several load levels. Predictions are in good agreement with experimental data

Place, publisher, year, edition, pages
2001. Vol. 32, no 4, p. 323-332
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-6085DOI: 10.1016/S1359-8368(01)00003-8ISI: 000168883000005Scopus ID: 2-s2.0-0035000513Local ID: 447a1fd0-0ea1-11dc-b9dd-000ea68e967bOAI: oai:DiVA.org:ltu-6085DiVA, id: diva2:978962
Note
Validerad; 2001; 20070530 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Joffe, Roberts

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