Abstract
The tensile fracture behaviour of short-fibre—brittle-matrix composites is investigated with a stastistical fracture mechanics theory. Provided the fibre-matrix bond is frictional in nature, the tensile strength of brittle matrices containing pre existing defects can be enhanced by short fibres which pull out rather than break. The Young's moduli of fibres and matrix do not enter into the analysis so that even fibres with Young's moduli lesss than those of the matrices can still increase the tensile strength of the composite. It is also observed that the Weibull modulus of fibre-reinforced materials is increased due to the fibres bridging the matrix defects. Computer simulation studies have confirmed these observations derived from the statistical fracture analysis.
| Original language | English |
|---|---|
| Pages (from-to) | 1265-1279 |
| Number of pages | 15 |
| Journal | Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties |
| Volume | 64 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Dec 1991 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- General Materials Science
- Condensed Matter Physics
- Physics and Astronomy (miscellaneous)
- Metals and Alloys