Strain-based fatigue life analysis of pipelines with external defects under cyclic internal pressure

Gouge and dent are common mechanical defects in oil and gas pipelines. These defects with plastic strain cause stress concentration in the pipelines. Plastic strain is dependent on initial deformation and spring-back behavior of materials. Therefore, they reduce the fatigue life of pipelines. In thi...

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Veröffentlicht in:	Journal of strain analysis for engineering design 2021-07, Vol.56 (5), p.313-326
Hauptverfasser:	Gholami, Hojjat, Shahrooi, Shahram, shishehsaz, Mohammad
Format:	Artikel
Sprache:	eng
Schlagworte:	Defects External pressure Fatigue life Fatigue tests Finite element method Gas pipelines Geometry Internal pressure Natural gas Petroleum pipelines Pipelines Plastic deformation Residual stress Strain analysis Stress concentration
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