point

$2c/\left(mm\right)$

Residual stress (Figure 12 & Figure 13)

Residual stress + Mechanical load 40 MPa

${\sigma }_{res}/\left(MPa\right)$

$K_{res}/\left(MPa\cdot m^{1/2}\right)$

${\sigma }_{res}/{\sigma }_0$

${\sigma }_{tot}/\left(MPa\right)$

$K_{tot}/\left(MPa\cdot m^{1/2}\right)$

${\sigma }_{tot}/{\sigma }_0$

A

4

175

13.87

0.51

215

17.25

0.62

B

8

160

19.12

0.46

200

23.75

0.58

C

12

131

21.41

0.38

171

26.93

0.50

D

16

102

22.07

0.30

142

28.31

0.41

E

20

73

21.57

0.21

113

28.46

0.33

F

24

44

20.16

0.13

84

27.68

0.24

G

28

15

18.00

0.04

55

26.11

0.16