Civil Engineering Reference
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Fig. 3.65 Diameter
reduction of a wire rope with
fibre core during bending
fatigue tests
1,0
0,95
0,90
S/d
2
N/mm
2
N
0,85
29
4760 000
884 000
142 000
34 400
58
117
234
Warr.8
19-FC-sZ
lubricated
D/d = 25
0,80
0
0,2
0,4
0,6
0,8
1,0
rel. number of bending cycles N
Fig. 3.66 Diameter
reduction of a wire rope with
steel core during bending
fatigue tests
1,0
0,95
0,90
S/d
2
N/mm
2
N
29
3120 000
852 000
168 000
45 000
17 000
0,85
58
117
234
352
Warr.8
19-IWRC-sZ
lubricated
D/d = 25
0,80
0
0,2
0,4
0,6
0,8
1,0
rel. number of bending cycles N
Fig. 3.67 Rope elongation
during bending fatigue tests,
Woernle (
1929
)
2
cross lay 6
19
−
FC
%
d = 16 mm
R
o
= 1280 N/mm
2
˃
z
= 300 N/mm
2
1,5
D/d = 25
1
0,5
0
10
3
0
10
20
30
40
50
−
60
number of bending cycles N
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