Abstract
A study related to the fatigue behaviour of natural fibre-reinforced composites was conducted to expand their range of product applications. A uni-directional flax-epoxy composite was fabricated and several conditions of tension-tension fatigue tests were performed. During fatigue testing, the composite showed an increase of stiffness, a typical observation for natural fibre-reinforced composites, and this was found to be accompanied by accumulation of residual strain. A clear linear relationship was found between the stiffening effect and the residual strain. In addition, it was revealed that the fatigue behaviour was clearly influenced by the frequency of cyclic loading. Lower frequencies induced more significant stiffening and shorter fatigue life. These results suggest that fatigue damaging is progressing simultaneously with the stiffening effect in natural fibre-reinforced composites, and it is therefore important to involve creep damaging to the failure criteria for these composites.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 20th International Conference on Composite Materials |
| Number of pages | 8 |
| Publisher | ICCM20 Secretariat |
| Publication date | 2015 |
| Publication status | Published - 2015 |
| Event | 20th International Conference on Composite Materials - Copenhagen, Denmark Duration: 19 Jul 2015 → 24 Jul 2015 Conference number: 20 http://iccm20.org/ |
Conference
| Conference | 20th International Conference on Composite Materials |
|---|---|
| Number | 20 |
| Country/Territory | Denmark |
| City | Copenhagen |
| Period | 19/07/2015 → 24/07/2015 |
| Internet address |
Keywords
- Natural fibres
- Flax
- Fatigue
- Creep