Fatigue behaviour of BS 2L65 aluminium alloy pin - aerade
Fatigue behaviour of BS 2L65 aluminium alloy pin - aerade
Fatigue behaviour of BS 2L65 aluminium alloy pin - aerade
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26<br />
CONSTANT AMPLITUDE LOADING<br />
Table 4<br />
FATIGUE TEST RESULTS<br />
Mean <strong>pin</strong> bearing stress = 225 MN/m 2<br />
(Mean net stress* = 140 MN/m 2)<br />
Bushes unpassivated<br />
Specimen No.<br />
746<br />
457<br />
743<br />
450<br />
653<br />
472<br />
838<br />
745<br />
499<br />
686<br />
451<br />
654<br />
489<br />
835<br />
75o<br />
5o3<br />
488<br />
685<br />
482<br />
761<br />
495<br />
Rms <strong>pin</strong><br />
bearing stress<br />
( lvJN/m 2 )<br />
8.05<br />
8.O5<br />
8.05<br />
8.O5<br />
16.1<br />
16.1<br />
16.1<br />
16.1<br />
24 • 2<br />
32.2<br />
32.2<br />
32.2<br />
32.2<br />
48.3<br />
48.3<br />
48.3 L<br />
48.3<br />
64.4<br />
64.4<br />
64.4<br />
64.4<br />
*Rms net<br />
stress<br />
(MN/m 2 )<br />
10<br />
10<br />
10<br />
10<br />
15<br />
20<br />
20<br />
20<br />
20<br />
3O<br />
3O<br />
3O<br />
3O<br />
4O<br />
40<br />
40<br />
40<br />
Life<br />
(t04 cycles)<br />
441.0<br />
578.0<br />
389.0<br />
657.o<br />
113.0<br />
81.6<br />
38.2<br />
101.0<br />
5o.I<br />
26.7<br />
39.1<br />
72.8<br />
14.8<br />
8.6<br />
19.8<br />
18.1<br />
IO.3<br />
6.4<br />
8.0<br />
7.8<br />
6.6<br />
* Based on net section area including bush wall<br />
i<br />
j ,,i<br />
Log4meau life<br />
(IO cycles)<br />
5o5<br />
77. I<br />
32.5<br />
13.3<br />
7.2
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