Fatigue behaviour of BS 2L65 aluminium alloy pin - aerade

E
700
600
500
z
x 400
c
c~
L-
300
-- 200
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P
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- E?_~ c
_ b
o ®
1
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1 I I
After Before
Before or after
peak in sequence
Unbushed
P
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x d x
O
X X
b
G
X
X
1
After
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L.
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E
o
u
o
400 -
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200
100
0
Bushed Unbushed
X
X
c b
X ×
P
I I I I
Before AFter Before After
Before or after
peak in sequence
Fig 29 Effect of peak stress on local stress histories during subsequent
smaller net stress cycles
Simulated NBR loading
at:
rms stress =32.2 (20) MN/m z
Mean stress = 153 (95) HN/m 2
Xn/N bushed=l.8
Pin bearing stress
121 -- 185 a
89- 217 b
56 - 250 c
24-- 282 d
ii - 295 p
( peak )
range
"n
w,
¢0