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Table 6 SR model fitting parameters for various materials

From: Crack Growth Rate Model Derived from Domain Knowledge-Guided Symbolic Regression

Materials

lnC

m

α

q

Ti-10V-2Fe-3Al

− 23.08

3.29

− 2.40

0.47

Ti-6Al-4V

− 24.90

3.61

− 2.07

0.38

Cr-Mo-V steel

− 24.55

3.16

− 2.76

0.26

LC9cs

− 20.28

3.23

− 2.29

0.49

Al-2324-T3

− 22.85

4.78

− 4.85

0.55

Al-6013-T651

− 22.93

3.76

− 2.63

0.36