Fracture Toughness Assessment for Steel Pipes Used in Gas Pipelines
Ahmed Eid Said Khalil;
Abstract
From the current work, the following conclusionscan be reported:
• The specific total work of fracture increases by increasing ligament length and the pipe thickness.
• The specific essential work of fracture of steel X52 is higher than X42.
• The unexpected results obtained in steel X42 are attributed to some microstructural defects.
• The results of essential work of fracture has a qualitative agreement to certain extent with previous works as well as different models.
• GS analytical method is more conservative for using in prediction of pipes failure schedules.
• Finite element method is nearly in good agreement with FC and GS method. However, in some cases (i.e. steel X70) FEM is more conservative than analytical methods.
• Ansys software was a successful tool used to simulate fracture assessment of natural gas pipelines.
• The specific total work of fracture increases by increasing ligament length and the pipe thickness.
• The specific essential work of fracture of steel X52 is higher than X42.
• The unexpected results obtained in steel X42 are attributed to some microstructural defects.
• The results of essential work of fracture has a qualitative agreement to certain extent with previous works as well as different models.
• GS analytical method is more conservative for using in prediction of pipes failure schedules.
• Finite element method is nearly in good agreement with FC and GS method. However, in some cases (i.e. steel X70) FEM is more conservative than analytical methods.
• Ansys software was a successful tool used to simulate fracture assessment of natural gas pipelines.
Other data
| Title | Fracture Toughness Assessment for Steel Pipes Used in Gas Pipelines | Other Titles | تقييم متانة الكسر للمواسير الصلب المستخدمة في خطوط انابيب الغاز الطبيعي | Authors | Ahmed Eid Said Khalil | Issue Date | 2017 |
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