Abstract
The results of testing in three-point bending of aramid fibre-reinforced epoxy composites are described. This loading mode has been chosen in order to increase the variety of failure modes and of fracture mechanisms. The main failure modes observed are tensile and delamination, with a transition at a fibre volume fraction of about 46%. This mode transition is detectable by monitoring various mechanical properties and acoustic emission data against the fibre volume fraction. The tensile mode comprises a fracture mechanism of fibre splitting and pull-out and the delamination comprises fibre bending, tearing off of fibre skin and shearing of individual filaments. Other effects such as the shifting of the neutral axis and the compressive failure at the compression side are also reported.
| Original language | English |
|---|---|
| Pages (from-to) | 377-384 |
| Number of pages | 8 |
| Journal | Journal of Materials Science |
| Volume | 19 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 1984 |