Mechanical damage in the form of dents has emerged as a key safety concern for pipelines. In response, ASME B31.8, with assistance from GTI, undertook a detailed review of industry research and operating experience with respect to various forms of mechanical damage. Revised criteria for prioritizing and effectively repairing damage in natural gas pipelines were developed based on the findings. The criteria address plain dents, third-party type damage, dents that affect weldments, dents affected by corrosion, and strain levels associated with deformation of the pipe section. This paper discusses the generalities of the scientific findings and basis for the changes to the Code.
- Pipeline Division
Basis of the New Criteria in ASME B31.8 for Prioritization and Repair of Mechanical Damage
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Rosenfeld, MJ, Pepper, JW, & Leewis, K. "Basis of the New Criteria in ASME B31.8 for Prioritization and Repair of Mechanical Damage." Proceedings of the 2002 4th International Pipeline Conference. 4th International Pipeline Conference, Parts A and B. Calgary, Alberta, Canada. September 29–October 3, 2002. pp. 647-658. ASME. https://doi.org/10.1115/IPC2002-27122
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