COMPARISON BETWEEN API 579-1/ASME FFS-1 AND ASME VIII DIVISION 3 STRESS INTENSITY FACTOR SOLUTIONS USED FOR FRACTURE MECHANICS AND FATIGUE OF THICK WALLED CYLINDERS

摘要

The paper discusses the differences between API 579-1/ASME FFS-1-1/ASME FFS-1 [1] and ASME Section VIII Division 3 [2] stress intensity factor solutions. In addition to this, the use of the Failure Assessment Diagram (FAD) in leak before burst analysis is compared to the present Division 3 approach. The paper contains the background of both approaches and a worked example demonstrating the effect of both methods. Finally, a simplified fatigue crack growth based life time study is presented.