Abstract
The effect of flow-induced fibre orientation on the fatigue performance of short fibre reinforced thermoplastics is investigated. Relative contributions of creep (static, time-dependent) and fatigue (cycle dependent) components are studied extensively by performing tests at different frequencies and load ratios for different fibre orientations and fibre weight fractions. An anisotropic, phenomenological model of crack growth controlled failure is proposed that relates creep/fatigue contributions to the lifetime in the crack growth controlled failure region for different fibre orientations and allows to extrapolate and estimate time-to-failure under a static load using short-term cyclic tests.
| Original language | English |
|---|---|
| Article number | 105982 |
| Number of pages | 13 |
| Journal | International Journal of Fatigue |
| Volume | 143 |
| DOIs | |
| Publication status | Published - Feb 2021 |
Funding
This work is part of the Research Program of the Dutch Polymer Institute DPI, Eindhoven, the Netherlands, project number #786t. Special thanks to Tim van Erp from SABIC, Bergen op Zoom, the Netherlands for supplying a unique set of fibre-reinforced tapes (PC/sGF) and tensile specimen (iPP/LGF); Pascal Lakeman from Trinseo, Terneuzen, the Netherlands, for providing ABS/LGF samples. Tom Engels and Marc Kanters from DSM Materials Science Center are gratefully acknowledged for helpful discussions.
| Funders | Funder number |
|---|---|
| DSM Science & Innovation | |
| Dutch Polymer Institute (DPI) | 786t |
| Saudi Basic Industries Corporation |
Keywords
- Anisotropy
- Creep
- Fatigue
- Long-term performance
- Polymer
- Short fibre