PSI - Issue 41

Chaaben Arroussi et al. / Procedia Structural Integrity 41 (2022) 752–758 Author name / Structural Integrity Procedia 00 (2019) 000–000

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5

(a) (c) Fig5. Reaction of the moment bending versus the angular displacement on the different position on the elbow, (a) 10°, (b) 20° and (c) 45°. (b)

Table3 .Position of defect on the elbow

Position of defect

ɑ

0°

10°

45°

ɑ= 90° (M*)

1.94E+008

1.92 E+008

1.88 E+008

ɑ= 90°+30° (M*)

2.77E+008

3.58 E+008

1.76 E+008

Observations

X





ɑ= 90° (M*)

1.94 E+008

1.92 E+008

1.88 E+008

ɑ= 90°+45° (M*)

2.36 E+008

2.34 E+008

1.68 E+008

Observations

X





ɑ= 90° (M*)

1.94E+008

1.92 E+008

1.88 E+008

ɑ= 90°+55° (M*)

1.73E+008

1.68 E+008

1.71 E+008

Observations

X

X

X

ɑ= 90° (M*)

1.94E+008

1.92 E+008

1.88 E+008

ɑ= 90°+60° (M*)

1.45E+008

1.48 E+008

1.38 E+008

Observations

X

X

X

ɑ= 90° (M*)

1.94E+008

1.92 E+008

1.88 E+008

ɑ= 90°+90° (M*)

3.08 E+008

3.56 E+008

3.68 E+008

Observations







 : Recommended, X : Not recommended. 2.2. Change the elbow pipe radius

The effect of bend moment and ratio radius on an different position of the corrosion default is presented in Figures 5 (a, b and c).Five ratio radius of elbow R/D=1, 1.5, 2, 3 and 5 are chosen with the three different position (0° , 20°