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Research on the Critical Buckling Strain Criterion for Pipelines

[+] Author Affiliations
Hua Zhang, Xinwei Zhao, Jinheng Luo, Guangli Zhang, Zhixin Chen

Tubular Goods Research Center of CNPC, Xi’an, China

Paper No. IPC2008-64648, pp. 769-773; 5 pages
doi:10.1115/IPC2008-64648
From:
  • 2008 7th International Pipeline Conference
  • 2008 7th International Pipeline Conference, Volume 3
  • Calgary, Alberta, Canada, September 29–October 3, 2008
  • Conference Sponsors: International Petroleum Technology Institute and the Pipeline Division
  • ISBN: 978-0-7918-4859-3 | eISBN: 798-0-7918-3835-8
  • Copyright © 2008 by ASME

abstract

The local buckling of pipelines is regarded as a kind of failure. The critical buckling strain is an important parameter in strain-based design of pipelines. According to the grey system theory, the factors affecting the critical buckling strain were analyzed and the correlation between these factors and the critical buckling strain was quantitatively measured based on test data. According to the dimension analysis theory, the factors affecting the critical buckling strain were analyzed and the correlation between the factors and a new critical buckling strain equation was proposed based on test data. And some advice was provided for the improvement of critical buckling strain equations. Comparing the results with data from full scale tests, these as-obtained equations could provide a higher precision.

Copyright © 2008 by ASME
Topics: Pipelines , Buckling

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