Fatigue behaviour of BS 2L65 aluminium alloy pin - aerade

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700[ Bushed Unbushed Bushed Unbushed 300 600 / ~ ! constant amplitude load ing at ~E S00]-- ~E rms stress = 64.4 (40) HN/m z ~: / -~ =" Heart stress = 153 (95) HN/m z 4001- ~ 200 x x---.---x E ,oo[ 1 OI I I i I I I I I I J J 0 403 483 0 403 483 0 403 483 0 403 483 (?SO) (300) (ZSO) (300) (2SO) (300) (ZSO) (300) Prestress NN/m 2 Prestress HN/m z Fig 28 Effect <strong>of</strong> prestress on local stress histories during constant amplitude loading "11 0O
E 700 600 500 z x 400 c c~ L- 300 -- 200 o O ..J !00 0 - Bushed P o ® - E?_~ c _ b o ® 1 Before I I I I I I I I I I I I I I I I I I x I I I I i I 1 I I After Before Before or after peak in sequence Unbushed P X X x d x O X X b G X X 1 After E L. e.- o E o u o 400 - 30O 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 <strong>of</strong> 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
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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: ¢W E 500 z,00 300 z 200 I/1 I/I w
Page 63 and 64: E z IE _ 200- ¢- [.. ¢¢1 {-- o o
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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