Page 315 - Biaxial Multiaxial Fatigue and Fracture

The Background of Fatigue Limit Ratio of Torsional Fatigue to Rotating Bending Fatigue in ... 299

500 500
s20c s45c
2 400- 2 400-
I z
Bending
300- w: 300- MPa
b " -
Q
0 U
- -
.- 2 200-
.- 2 200-
Q Q
5
m re135
m
P E
tj iij
100 I I I 100 I I I
E I Bending

2 400 s45cDAI

': 300

-
.z 200
E
v) v) v) Torsion
2
Q 65 100 0"
1
100 ~
10" 10" 10' io7 io8 io5 10' io7 lo8
Number of cycles N Number of cycles N
(c) SC450 (d) S45C-DA

2 400
H

U
.r3 - 200-
Q
5
VI
v)
E S45C-H
tj
100' I I I