Influence of the scattering of flax fibres properties on flax/epoxy woven ply stiffness
| Autor: | Christophe Baley, Daniel Scida, Alain Bourmaud |
|---|---|
| Přispěvatelé: | Laboratoire d'Ingéniérie et Science des Matériaux - EA 4695 (LISM), Université de Reims Champagne-Ardenne (URCA)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche Dupuy de Lôme (IRDL), Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Bretagne Sud (UBS) |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Composite number Modulus 02 engineering and technology 010402 general chemistry Poisson distribution Analytical model 01 natural sciences Woven composite [SPI]Engineering Sciences [physics] symbols.namesake lcsh:TA401-492 medicine General Materials Science Composite material Scattered properties Waviness Scattering Mechanical Engineering Elastic properties Stiffness Epoxy Yarn 021001 nanoscience & nanotechnology Flax fibre 0104 chemical sciences Mechanics of Materials visual_art visual_art.visual_art_medium symbols lcsh:Materials of engineering and construction. Mechanics of materials medicine.symptom 0210 nano-technology |
| Zdroj: | Materials & Design, Vol 122, Iss, Pp 136-145 (2017) Materials and Design Materials and Design, Elsevier, 2017, 122, pp.136-145. ⟨10.1016/j.matdes.2017.02.094⟩ |
| ISSN: | 0264-1275 |
| DOI: | 10.1016/j.matdes.2017.02.094 |
| Popis: | The natural character of plant fibres was often cited as a disadvantage which results in the scattering of their properties. This work aims at studying the influence of this scattering on the stiffness of an epoxy-flax fibres twill fabric ply. Elastic coefficients were estimated using an analytical model in an elliptical configuration based on the use of the classical laminate theory. Most of flax fibre elastic coefficients were obtained in the literature; in addition, a flax fibre Poisson's ratio of 0.498 was estimated from an experimentally inverse approach. Then, the use of the analytical model evidenced that the Young's moduli of woven composite were strongly correlated to longitudinal and transversal fibre ones; moreover, the fibre transversal modulus had a significant impact on the Poisson's ratios of the composite. As regards to the yarn configuration and architecture, we showed that the mean twisting angle significantly affected stiffness and Poisson's ratio of the composite; in the same way, the importance of waviness described by its waviness ratio was underlined whereas the scattering into yarn morphology had low influence on composite performances when the waviness ratio was high. Keywords: Flax fibre, Scattered properties, Woven composite, Elastic properties, Analytical model |
| Databáze: | OpenAIRE |
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