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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bonding and metallic patch. This analysis focused to compute the critical moment bearded by the damaged pipe elbow using the finite element method, in order to predict the behavior of pipe elbow and to effect of this methods on the enhanced of critical moment bearded by pipe elbow. The main research results are as follows: ( i ) in the case of change bend angle, one of proposed solution in this study, the elbows with bend angle 120° and 135° was recommended when the defect is located at 0°and 10°, however , when the defect is located at (0°-45°) the straight pipe is recommended and ( ii ) in the case of change bend radius, just the elbows with bend radius R= 2D, 3D is recommended when the defect is located at 45°but the all remaining cases is refused.

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