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Modeling the effect of reinforcement discontinuity on the tensile strength of UD flax fiber composites
Institute of Polymer Mechanics, University of Latvia.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-5210-4341
Institute of Polymer Mechanics, University of Latvia.
Institute of General Mechanics, RWTH-Aachen University.
2011 (English)In: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 46, no 15, p. 5104-5110Article in journal (Refereed) Published
Abstract [en]

To exploit the potential of natural fibers as reinforcement of polymer matrix composites, aligned bast fiber composite materials are being produced and studied. Bast fiber reinforcement is discontinuous due to the limited length of natural fibers, which needs to be reflected in predictive models of mechanical properties of composites. The strength in tension in the fiber direction of an aligned flax fiber-reinforced composite is modeled assuming that a cluster of adjacent fiber discontinuities is the origin of fracture. A probabilistic model of tensile strength, developed for UD composites containing a microdefect, is applied. It follows from the theoretical analysis that the experimental tensile strength as a function the fiber volume fraction can be described with acceptable accuracy assuming the presence of a cluster of ca. 4 × 4 elementary fiber discontinuities

Place, publisher, year, edition, pages
2011. Vol. 46, no 15, p. 5104-5110
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-10348DOI: 10.1007/s10853-011-5440-9ISI: 000290453900012Scopus ID: 2-s2.0-79956149576Local ID: 924bd811-7014-45c5-ab25-c636d13a0133OAI: oai:DiVA.org:ltu-10348DiVA, id: diva2:983290
Note
Validerad; 2011; 20110325 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Joffe, RobertsSparnins, Edgars

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