Abstract
The theoretical predictions of Young's moduli of a discontinuous fiber reinforced metal matrix composite are compared with experimentally measured moduli to examine the appropriateness of different models. To account for possible changes due to composite fabrication, the modulus of globular inclusions of the fibrous material (shot) was measured in situ using an acoustic microscope on fully processed composite samples. Assuming that the shot and fiber possess the same modulus, micromechanical models are used to predict the Young's modulus of the composite. On comparing theoretical predictions with experimental values measured by dynamic resonance and tensile tests, it is found that the models consistently underestimate the Young's modulus of the composite. These results suggest that the Young's modulus of the fiber may in fact be different than that measured for shot.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 67-75 |
| Number of pages | 9 |
| Journal | American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP |
| Volume | 276 |
| State | Published - Dec 1 1994 |
| Event | Proceedings of the 1994 Pressure Vessels and Piping Conference. Part 2 (of 19) - Minneapolis, MN, USA Duration: Jun 19 1994 → Jun 23 1994 |
All Science Journal Classification (ASJC) codes
- Mechanical Engineering