Fatigue behaviour of BS 2L65 aluminium alloy pin - aerade

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(%1 E Z ¢I £,. ¢,. m o ¢.} o -J 700 - 600 - 500 - 400 - 300 200 I00 0 P C> C) a Bushed I 1 Before After Before peak in P X X e x ~ X X ~ x ~ d .-....x b ~x × × E Z ~r f,,#=l l,=. e- E u o ,.=i 400 - 300 - 200 I00- m X x- T- Unbushed Bushed Unbushed I I I I 1 I Before After Before After Before After or after Before or after sequence peak in sequence Fig 30 Effect <strong>of</strong> peak stress on local stress histories during subsequent smaller net stress cycles Simulated NBR loading at: rms stress =45.9(28.5)MN/m 2 Mean stress = 153 (95) MN/m z ~E a/N bushed = 3.6 Hn bearing MN/m z 121-185 a 8g--217 b 56- 250 c 24 -- 282 d 0-314 e O-- 355 p ( pea k ] stress range "11 m, gO C~
E z IE _ 200- ¢- [.. ¢¢1 {-- o o _J 700 -- 600 - 500 - 400 - 300 - I00 - 0 Bushed Unbushed P Q Q cp._ a..__..Q I I I Before After Before Before or after peak in sequence X X x P b a X --X , X z E u~ 400 300 t-- " 200 c- a E o -J I00 Bushed Unbushed ,J I I I I After Before After Before After Before or after peak in sequence Fig 31 Effect <strong>of</strong> peak stress on local stress histories during subsequent smaller net stress ranges Simulated N B R loading at: rms stress =16.1 (10) MN/m z Mean stress=Z25.4 (140) MN/m z ]rn/M bushed = 3.2 Pin bearing stress range HN/m z 193- 258 a 161 -290 b 14 - 309 p ( peak } "11 ~o (A1
Page 1 and 2:
tg3 ee3 OO ee3 6 Z PROCUREMENT EXEC
Page 3 and 4:
2 4 5 LIST OF CONTENTS INTR0 DUCTIO
Page 5 and 6:
4 would be tested under narrow band
Page 7 and 8:
6 (d) Constant amplitude loading ov
Page 9 and 10:
8 the fatigue life of a lug. Theore
Page 11 and 12: 10 4 DISCUSSION 4.1 ~ s i v a t i n
Page 13 and 14: 12 diagram of Fig 35. The local str
Page 15 and 16: 14 increase in endurance of 160%. A
Page 17 and 18: 16 used in the calculations, allowi
Page 19 and 20: 18 (i) Under constant amplitude loa
Page 21 and 22: 20 FATIGUE TESTING FACILITY AND LOA
Page 23 and 24: 22 ~ETHOD OF LIFE ESTIMATION ALLOWI
Page 25 and 26: 24 CONSTANT AMPLITUDE LOADING Table
Page 27 and 28: 26 CONSTANT AMPLITUDE LOADING Table
Page 29 and 30: 28 NARROW BAND RANDOM LOADING Table
Page 31 and 32: 3O No 4 6 7 8 Author WoA.P. Fisher
Page 33 and 34: _3 Scale 4 Nominal dimensions in mm
Page 35 and 36: I t -t- Scale 2:1 Material $80 stee
Page 37 and 38: ?0-~ -- 60-~ E = ol Z ~ 120 E zl00
Page 39 and 40: 70- E 120 - ~100 - ~-" 60 - ~ E Z m
Page 41 and 42: A E ?0- 6O Z :E 50 --Z w E u~ ul t~
Page 43 and 44: E Z I J1 L.. e- E L.- .m e'- m (--
Page 45 and 46: ?0 6O E z 50 U3 u3 E t.. I- 40 30 N
Page 47 and 48: E Z I[ ¢- (Jl E L_ .E e- 70 120 -
Page 49 and 50: E Z 30 - E Z :E ul Ltl ,ol (,'1 =20
Page 51 and 52: Bush is split olong-~ this line so
Page 53 and 54: 2values of prestress applied in con
Page 55 and 56: 500 - 400 300 ZOO !00 0 - I00 I - Z
Page 57 and 58: N E z I/I f~ ¢1 0 ..I 500 r- 400 3
Page 59 and 60: ¢W E 500 z,00 300 z 200 I/1 I/I w
Page 61: E 700 600 500 z x 400 c c~ L- 300 -
Page 65 and 66: E 700- 600 - 500- Z z400 - (P e,- 0
Page 67 and 68: Z E ol ¢- r~ L. ul I/I U o .J 600-
Page 69 and 70: A I/I 70 60 50 40 f.. u~ 30 E ¢...
Page 71 and 72: A Tensile stre ss-~ ~ _ ~ spring Lu
Page 73 and 74: IJ. 141 .E u x 0 , m 0 ~ m o a~ IO_
Page 75 and 76: E 800 700 600 Z ~E 500 c- m ul ~00
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Fatigue behaviour of BS 2L65 aluminium alloy pin - aerade

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