... Abstract Determination of fracture toughness for weld has always been a difficult problem because of the existence of defects and material discontinuity in weld. In this paper, the fracture toughness distribution and ductile-brittle transition characteristic of X70 pipeline steel girth weld...

... Abstract For the study of the pipeline girth weld, the key to ensure the accuracy of the finite element analysis result is to obtain the accurate constitutive relationships. However, due to the complex material composition of the girth weld, it is difficult to obtain the accurate stress-strain...

... Abstract For long-distance oil and gas pipelines, pipeline construction is actually a vast project which involves longdistance welding process. Because of technology and artificial factors, there are various types of welding defects in pipeline girth welds, such as cracks, porosity, slag...

...Proceedings of the ASME 2022 Pressure Vessels & Piping Conference PVP2022 July 17-22, 2022, Las Vegas, Nevada, USA PVP2022-84636 Research on the Influence of Girth Weld Joint Matching Degree on the Safety Performance of High Steel Grade Pipeline Based on ASME Local Strain Limit Criterion Xin Liu 1...

... Abstract The traditional manual welding in pipeline construction is being gradually replaced by semi-automatic and automatic welding in China. Semi-automatic welding is especially applied to X80 pipeline girth weld welding widely. Compared with semi-automatic welding, automatic welding has...

... pipelines subjected to tensile displacement in safe. However, the strain capacity does not depend on the pipe body but on the girth weld because the girth weld is always non-homogeneous. The strain concentration may happen where material yields in advance. Therefore, the strength matching of the girth weld...

... weldments. Appropriate examinations, condition assessments, and recommendations for corrective actions are provided as a cost-effective life management process to maintain the piping system integrity. This paper provides examples demonstrating that the girth welds ranked below the top five to six welds...

... of managing aging structures is discussed. Clamshell weld consequence design of experiments duration histogram fractional factorial design girth weld high energy piping high impact low probability events hot reheat piping systems main steam piping systems NERC-GADS probability risk-based...