Baseline Surface Z1 FarField “Average” Stresses Ahead of Fasteners Holes (evaluated over 2.3D, symmetrical about fast C/L) And The Bands of Variations

Model

Pin/Hole

Pin/Hole

Pin/Hole

Pin/Hole

Pin/Hole

Pin/Hole

Pin/Hole

Pin/Hole

Panel

P1

1

2

3

4

5

6

7

8

Hole Dia

(in)

0.1895

0.1895

0.1895

0.1895

0.1895

0.1895

0.1895

0.1895

Crack Length @ Current Fastener

(in)

0.000000

0.000000

0.000000

0.000000

0.000000

0.000000

0.000000

0.000000

Stress Fx ('load' type equivalent - #1)

(psi)

946.71

1197.16

1210.24

962.53

219.33

195.63

205.37

229.01

Stress Fy (...#1)

(psi)

3483.94

3520.40

3530.87

3488.06

366.34

363.62

358.34

319.31

Stress Fxy (median value - #2)

(psi)

−211.96

−42.29

39.33

219.10

−129.95

−22.78

25.06

141.40

Stress MaxPrp (median value -#3)

(psi)

3499.86

3525.03

3535.45

3505.11

442.81

369.78

365.99

423.90

Stress MinPrp (...#3)

(psi)

934.98

1192.52

1205.66

951.01

143.39

189.46

196.76

121.89

Stress MaxShear(...#1)

(psi)

1749.93

1762.51

1767.72

1752.56

221.40

184.89

183.00

211.95

#1 using SUMPROD(El_Strs*El_Side)/SUM(El_Side)

#2 MEDIAN(all elems. considered)

#3 prp strs for each element and then used MEDIAN of all elems. considered

Variation between min and max values

Hole No

1

2

3

4

5

6

7

8

delta Fx

(psi)

236.68

159.80

155.66

241.75

81.42

86.39

93.74

80.68

delta Fy

(psi)

61.79

55.45

53.79

63.33

128.47

135.00

137.46

132.92

delta Fxy

(psi)

314.88

281.57

282.40

320.68

22.45

70.21

74.21

34.94

delta MaxPrp

(psi)

97.10

57.59

56.30

100.23

90.77

141.83

145.44

84.13

delta MinPrp

(psi)

276.30

173.30

169.00

283.05

47.68

93.23

101.71

42.40

delta MaxShear

(psi)

48.55

28.80

28.15

50.12

45.39

70.92

72.72

42.06