Rhett Dotson is a Registered Professional Engineer with over 10 years of experience in analysis and testing for structural components and pipeline systems. His work with offshore systems has included strength and fatigue analysis performed on topsides and subsea components, and his work with pipelines systems has included assessment and engineering support for anomalies accident investigations. Rhett holds both a Bachelor of Science and a Master of Engineering from Texas A&M University.
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May/June 2015 Inspectioneering Journal
By Rhett Dotson, P.E. at Stress Engineering Services
Historically, regulations regarding dent severity have been governed by one of two metrics: dent depth or strain. In the case of the former, plain dents with a depth up to 6% of the nominal diameter are permitted in both gas and liquid pipelines. However, many operators typically set stricter limits on dent depth targeting those above a depth of 2% for evaluation.