The following cases of girth welded region between pipelines having different base strength were considered. The pipeline shows different fracture behavior from girth welded pipeline between similar materials due to strength mismatch and residual stress distribution. Investigation about the residual stress distribution and fracture behavior of pipeline having girth welds of the differnet base metals (X70/X65 and X70/X42) with different material property has performed using finite element analysis. The effect of mismatched material property on girth weld region is negligible when shape of pipeline is similar. The assessment for occurance of crack on girth weld region with pipes with material property mismatched can be replaced by that of the similar pipes with low strength on the point view of conservation.
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2010 8th International Pipeline Conference
September 27–October 1, 2010
Calgary, Alberta, Canada
Conference Sponsors:
- International Petroleum Technology Institute and the Pipeline Division
ISBN:
978-0-7918-4421-2
PROCEEDINGS PAPER
A Study on the Residual Stress and Fracture Behavior of Pipeline Girth Welds Joining Pipes of Different Strength
Jong-hyun Baek,
Jong-hyun Baek
KOGAS, Ansan, Kyunggi, Korea
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Young-pyo Kim
Young-pyo Kim
KOGAS, Ansan, Kyunggi, Korea
Search for other works by this author on:
Woo-sik Kim
KOGAS, Ansan, Kyunggi, Korea
Jong-hyun Baek
KOGAS, Ansan, Kyunggi, Korea
Choel-man Kim
KOGAS, Ansan, Kyunggi, Korea
Young-pyo Kim
KOGAS, Ansan, Kyunggi, Korea
Paper No:
IPC2010-31219, pp. 383-389; 7 pages
Published Online:
April 4, 2011
Citation
Kim, W, Baek, J, Kim, C, & Kim, Y. "A Study on the Residual Stress and Fracture Behavior of Pipeline Girth Welds Joining Pipes of Different Strength." Proceedings of the 2010 8th International Pipeline Conference. 2010 8th International Pipeline Conference, Volume 2. Calgary, Alberta, Canada. September 27–October 1, 2010. pp. 383-389. ASME. https://doi.org/10.1115/IPC2010-31219
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