Remaining life evaluation has been attracting much attention to secure the safety of aged power generating plants. A crack on the outer surface of pipe is a typical kind of damage observed in aged plants. Accurate information of crack largely helps the remaining life evaluation based on fracture mechanics. The direct-current potential difference method (DC-PDM) is known as one of the suitable non-destructive techniques to monitor the initiation and growth of crack in the pipes. Usually, numerical analyses are necessary to evaluate the geometry of crack from the potential difference because no analytical solution was given in most cases. In this study, a solution of the potential difference around a semi-elliptical crack on the outer surface of pipe is presented and the result is compared with that obtained by finite element analysis.
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ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference
July 18–22, 2010
Bellevue, Washington, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4924-8
PROCEEDINGS PAPER
Potential Difference Around Semi-Elliptical Crack on the Outer Surface of Pipe for Non-Destructive Evaluation of Crack by DC-PDM
Makoto Uchida,
Makoto Uchida
Okayama University, Okayama, Japan
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Hiroki Maeda
Hiroki Maeda
Okayama University, Okayama, Japan
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Naoya Tada
Okayama University, Okayama, Japan
Makoto Uchida
Okayama University, Okayama, Japan
Hiroki Maeda
Okayama University, Okayama, Japan
Paper No:
PVP2010-25286, pp. 215-222; 8 pages
Published Online:
January 10, 2011
Citation
Tada, N, Uchida, M, & Maeda, H. "Potential Difference Around Semi-Elliptical Crack on the Outer Surface of Pipe for Non-Destructive Evaluation of Crack by DC-PDM." Proceedings of the ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASME 2010 Pressure Vessels and Piping Conference: Volume 5. Bellevue, Washington, USA. July 18–22, 2010. pp. 215-222. ASME. https://doi.org/10.1115/PVP2010-25286
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