Displays the ratio to major or minor axis or, alternatively, the effective length to diameter of the inclusion.
The range of aspect ratio for various types of reinforcements is summarized as follows:
| Aspect Ratio | Reinforcement Type |
|---|---|
| 0< AR < 1 | Oblate or disk-like shapes (such as mica, flakes) |
| AR >1 | Prolate or cylindrical shape (such as fiber) |
| AR = 1 | Spherical or cubic shaped fillers |