stress level

S1

S2

S3

S4

4900 Mpa

5500 Mpa

6100 Mpa

6700 Mpa

Fatigue life, 10⁷ cycles for origin and after t_o and t_f adjusting

life id

origin

norm^*

origin

norm^*

origin

norm^*

origin

norm^*

t₁

2.25

0.0628

0.877

0.0645

0.588

0.0916

0.163

0.2114

t₂

3.88

0.1083

1.50

0.1104

0.943

0.1469

0.288

0.2342

t₃

6.42

0.1793

2.48

0.1825

1.460

0.2274

0.372

0.2495

t₄

14.1

0.3937

5.40

0.3974

2.90

0.4517

0.438

0.2615

t₄

17.0

0.4747

6.49

0.4776

3.41

0.5312

0.598

0.2906

t₆

17.0

0.4747

6.52

0.4798

3.42

0.5327

0.799

0.3271

t₇

18.5

0.5166

7.07

0.5202

3.67

0.5717

1.39

0.4346

t₈

21.0

0.5864

8.02

0.5901

4.10

0.6387

1.83

0.5146

t₉

36.1

1.0081

13.70

1.0081

6.57

1.0234

5.07

1.1037

t₁₀

41.6

1.1617

15.80

1.1626

7.42

1.1558

5.73

1.2237

t₁₁

42.1

1.1756

16.00

1.1773

7.51

1.1698

6.61

1.3837

t₁₂

48.6

1.3572

18.40

1.3539

8.50

1.3204

7.07

1.4673

t₁₃

82.9

2.3150

31.20

2.2958

13.50

2.1029

10.3

2.0546

t₁₄

139.0

4.0491

52.00

3.9735

21.10

3.1154

17.9

3.6364