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Evaluation of interfacial shear strength by tensile tests of impregnated flax fiber yarns
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0002-5210-4341
Institute of Polymer Mechanics, University of Latvia.
2012 (engelsk)Inngår i: Journal of composite materials, ISSN 0021-9983, E-ISSN 1530-793X, Vol. 46, nr 3, s. 351-357Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Adhesion of flax fibers and polymer matrix as well as mutual bonding of elementary fibers in a technical fiber are among the principal factors governing the mechanical response of flax fiber reinforced polymer-matrix composites. A method for evaluation of adhesion is proposed based on tension tests of impregnated fiber yarns, with subsequent characterization by optical microscopy of length distribution of fibers pulled out of the yarn fracture surfaces. An elementary probabilistic model is derived relating aspect ratio distribution of the pulled out fibers to the fiber tensile strength distribution and the effective interfacial shear strength. The method was applied to flax fiber/vinylester resin yarns and an estimate of interfacial shear strength at 17 MPa was obtained.

sted, utgiver, år, opplag, sider
2012. Vol. 46, nr 3, s. 351-357
HSV kategori
Forskningsprogram
Polymera konstruktionsmaterial
Identifikatorer
URN: urn:nbn:se:ltu:diva-15419DOI: 10.1177/0021998311410505ISI: 000299611600008Scopus ID: 2-s2.0-84856454583Lokal ID: eecdb2d1-ba80-4917-915d-dbb487c349e1OAI: oai:DiVA.org:ltu-15419DiVA, id: diva2:988393
Merknad
Validerad; 2012; 20110830 (joffe)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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