Figure 4. The mesh of 2D circular section. A: for a/R=0.1 with 403 elements; B: for a/R=0.2 with 918 elements; C: for a/R=0.3 with 721 elements; D: for a/R=0.4 with 332 elements; E: for a/R=0.5 with 776 elements; F: for a/R=0.6 with 443 elements; G: for a/R=0.7 with 742 elements; H: for a/R=0.8 with 254 elements; J: for a/R=0.9 with 272 elements; K: for a/R=1 with 300 elements.

From

Determination of the Stress Intensity Factor with an Empirical Approach for Circular and Elliptical Cracked Sections

Hicham Laribou, Chadia Qotni

American Journal of Mechanical Engineering. 2022, 10(1), 9-16 doi:10.12691/ajme-10-1-2