Table 1.
Material constants of Fung's passive strain energy function (Eq. 1)
| Animal Heart No. | C1, kPa | a1 | a2 | a4 | R2 for Tθθpassive | R2 for Tzz passive |
|---|---|---|---|---|---|---|
| 1 | 4.16 | 4.20 | 3.02 | 0.60 | 0.99 | 0.99 |
| 2 | 6.09 | 1.72 | 2.93 | 0.43 | 0.91 | 0.98 |
| 3 | 7.94 | 3.26 | 2.19 | 0.45 | 0.99 | 0.99 |
| 4 | 4.07 | 3.96 | 1.64 | 1.61 | 0.94 | 0.93 |
| 5 | 5.13 | 3.18 | 2.14 | 0.70 | 0.98 | 0.99 |
| 6 | 5.30 | 2.44 | 1.42 | 1.21 | 0.97 | 0.95 |
| Fit of all experimental data of hearts 1–6 | 4.55 | 3.05 | 2.32 | 1.15 | 0.98 | 0.99 |
| Mean ± SE for hearts 1–6 | 5.45 ± 0.59 | 3.13 ± 0.38 | 2.22 ± 0.27 | 0.83 ± 0.19 |
Material constants, C1, a1, a2, and a4, are obtained from experimental measurements of intima-media layer of right coronary artery (RCA). R2, correlation coefficient; Tθθpassive, passive circumferential first Piola-Kirchhoff stresses; Tzz passive, passive axial first Piola-Kirchhoff stresses.