6533b82efe1ef96bd12925fa

RESEARCH PRODUCT

The effect of mechanical defects on the strength distribution of elementary flax fibres

E. SpārniņšJanis AndersonsE. Poriķe

subject

Flax fiberA fibresDistribution functionMaterials scienceOptical microscopelawUltimate tensile strengthGeneral EngineeringCeramics and CompositesNatural variabilityComposite materialNatural fiberlaw.invention

description

Flax fibres are finding non-traditional applications as reinforcement of composite materials. The mechanical properties of fibres are affected by the natural variability in plant as well as the damage accumulated during processing, and thus have considerable variability that necessitates statistical treatment of fibre characteristics. The strength distribution of elementary flax fibres has been determined at several fibre lengths by standard tensile tests, and the amount of kink bands in the fibres evaluated by optical microscopy. Strength distribution function, based on the assumption that the presence of kink bands limits fibre strength, is derived and found to provide reasonable agreement with test results.

https://doi.org/10.1016/j.compscitech.2009.05.010