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Impact of 3D Laser Data Resolution and Accuracy on Pipeline Dents Strain Analysis

This paper presents a new approach to inspect mechanical damage on pipelines by using a 3D laser scanner, dedicated analysis software, and a rugged field-pack to optimize deployment in the field. This solution is an improvement over traditional nondestructive techniques such as pit gaging and ultrasound. Different plain dents were used in a case study to clearly show the differences between inspection techniques. Depth-based and strain-based analysis of dents are discussed.

References

ASME, ASME B 31.8, Gas Transmission and Distribution Piping Systems, Appendix R, American Society of Mechanical Engineers, New York, New York, 2007. Gao, M., R. McNealy, R. Krishnamurthy, and I. Colquhoun, “Strainbased Models for Strain Assessment: A Review,” 7th International Pipeline, Calgary, AB, Canada, 29 September–3 October 2008.

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