Issue 77

V. Antonchenko et alii, Fracture and Structural Integrity, 77 (2026) 247-264; DOI: 10.3221/IGF-ESIS.77.15

Figure 5: Boundary conditions for polynomial calculations of SIF values

଴ ଵ ଶ ଷ ௥଴ ௥ଵ 0.5538 0.4067 0.3225 0.2094

Size, %

5

0.9136 0.9165 0.9145 0.9113 0.9104 0.9445 0.9399 0.9328 0.9265 0.9235

0.0414 0.0283 0.0216 0.0179 0.0156 0.0439 0.0296 0.0223 0.0183 0.0160

ଵ ଶ ൗ ൌ 1 ଵ ଶ ൗ ൌ 0.7 ଵ ଶ ൗ ൌ 1 ଵ ଶ ൗ ൌ 0.7

7.5

0.5593 0.5686 0.5630 0.5658 0.5660 0.5676 0.5705 0.5684 0.5708

0.4108 0.4226 0.4146 0.4177 0.4137 0.4149 0.4259 0.4173 0.4204

0.3257 0.3388 0.3291 0.3321 0.3276 0.3282 0.3407 0.3307 0.3338

0.1611 0.1283 0.1094 0.0950 0.2247 0.1706 0.1345 0.1139 0.0983

10

12.5

15

5

7.5

10

12.5

15

Table 2: Shape factors for TCC with axis ratios of 0.3. ଴ ଵ ଶ ଷ ௥଴ ௥ଵ 0.6720 0.4435 0.3419 0.2795 0.1083 0.7028 0.4578 0.3506 0.2857 0.0900

Size, %

5

0.0189 0.0125 0.0092 0.0074 0.0064 0.0209 0.0136 0.0098 0.0078 0.0066

7.5 10

0.7176 0.7264 0.7343 0.6954 0.7210 0.7325 0.7403 0.7450

0.4652 0.4695 0.4739 0.4515 0.4639 0.4702 0.4744 0.4776

0.3552 0.3576 0.3604 0.3458 0.3535 0.3575 0.3600 0.3621

0.2891 0.2907 0.2927 0.2817 0.2874 0.2904 0.2920 0.2937

0.0759 0.0661 0.0589 0.1204 0.0977 0.0813 0.0701 0.0618

12.5

15

5

7.5 10

12.5

15

Table 3: Shape factors for TCC with axis ratios of 0.7

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