Study of the viscoelastic behaviour of the Raffia vinifera fibres
| Autor: | W. Huisken, D. Nkemaja, Didier Fokwa, Jean-Yves Drean, Gilbert Tchemou, E. Njeugna, D. Ndapeu, Médard Fogue, N. R. Sikame Tagne, Omar Harzallah |
|---|---|
| Přispěvatelé: | Laboratoire de Physique et Mécanique Textiles - LPMT - UR4365 (LPMT), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2018 |
| Předmět: |
Polynomial (hyperelastic model)
Materials science Creep-recovery Modeling Uniaxial tension 02 engineering and technology [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] 021001 nanoscience & nanotechnology Viscoelasticity Stress (mechanics) 020303 mechanical engineering & transports 0203 mechanical engineering Ultimate tensile strength Multiple step loading Cyclic loading Composite material 0210 nano-technology Agronomy and Crop Science Raffia vinifera |
| Zdroj: | Industrial Crops and Products Industrial Crops and Products, Elsevier, 2018, 124, pp.572-581. ⟨10.1016/j.indcrop.2018.07.077⟩ |
| ISSN: | 0926-6690 |
| Popis: | International audience; In this paper, the study was focused on the viscoelastic behaviour of Raffia vinifera fibres in the optimization of bio-composites. We designed and constructed a device that was used to carry out the uniaxial tensile creep-recovery test which was validated by the comparative tests carried out on the tensile machine MTS 20/M. Among several models tested, the 8-elements Burger model described better the experimental points and the obtained parameters vary according to the stress. In addition, the creep-recovery behaviour was studied through the Schapery model and its parameters were evaluated. Generally, it appears that these parameters can be modelled by a 3-order polynomial. Then the multiple step loading behaviour was carried out and allowed the 8-elements Burger model to be consolidated with the duration of a load being taken into account to describe it. Finally, from the study of cyclic loading, it showed that the energy dissipated during the first cycle is very important compared to that of the other cycles and it becomes negligible from the 10th cycle. This shows that the Raffia vinifera fibre loses less energy during cyclic stresses. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect