a (μm) | F Breitznitskii [7] | F Tweede-Rooke [8] | F (FEA) Round void |
0.023 | 3.366 | 3.659 | 28.343 |
0.098 | 2.270 | 3.150 | 6.866 |
0.199 | 2.370 | 2.657 | 3.357 |
0.598 | 1.735 | 1.736 | 1.943 |
1.000 | 1.156 | 1.382 | 2.073 |