Table 1.
Macroscopic
| |||
---|---|---|---|
Fung constants | |||
c | A1 | A2 | A3 |
1.18E+06 | 6.92E− 01 | 3.46E−02 | 4.53E−02 |
| |||
Circumferential maximum tangential modulus | |||
0.29 ± 0.043 MPa | |||
Microscopic | |||
| |||
Fiber histogram mode (fiber orientation)a | |||
| |||
Collagen | |||
Unloaded | Loaded | ||
−30 to −40° bin | 20 to 30° bin | ||
Elastin | |||
−40 to −50° bin | −30 to −40°, 40 to 50° bins | ||
| |||
Full-width half-maximum (spread of orientation) | |||
Collagen | |||
Unloaded | Loaded | ||
22.7 | 59.8 | ||
Elastin | |||
18.8 | 58.6, 32.9 |
−45 deg corresponds to the axial direction, +45 deg corresponds to the circumferential direction.