Accurate prediction of burst pressure in line pipes is critical for their safety design and operation. Different equations for predicting burst pressure of line pipes have been proposed over the years, but broad agreements between the prediction equations did not exist. To this end, the present authors recently developed a new multi-axial plastic yield theory that is referred to as Average Shear Stress Yield (ASSY) theory [6]. Based on this theory, a theoretical closed-form solution for predicting burst pressure was proposed as a function of the pipe diameter, thickness, ultimate tensile stress and strain hardening exponent. The results showed that the ASSY-based burst pressure solution predicts generally the average of experimental data, and gives the best prediction among different models in a comparison of over 100 full-size burst tests for different line pipe geometries and grades. This conclusion is consistent with the observation by Zimmerman et al. [7]. On the other hand, Law at al. [1–3] recently proposed a so-called CIS (cylindrical instability stress) model that can implicitly predict the burst pressure of line pipes, and claimed that the CIS model is the best one for predicting burst pressure. To clarify the argument and to determine a truly accurate prediction equation, this paper will reevaluate the available models of burst pressure using various experimental data used by Law et al. and others. Detailed comparisons and discussions on the predictions of burst pressure with the experimental results are performed.
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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:
978-0-7918-4420-5
PROCEEDINGS PAPER
Prediction and Comparison of Burst Pressure for Line Pipes Available to Purchase
Xian-Kui Zhu,
Xian-Kui Zhu
Battelle Memorial Institute, Columbus, OH
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Brian N. Leis
Brian N. Leis
Battelle Memorial Institute, Columbus, OH
Search for other works by this author on:
Xian-Kui Zhu
Battelle Memorial Institute, Columbus, OH
Brian N. Leis
Battelle Memorial Institute, Columbus, OH
Paper No:
IPC2010-31581, pp. 873-880; 8 pages
Published Online:
April 4, 2011
Citation
Zhu, X, & Leis, BN. "Prediction and Comparison of Burst Pressure for Line Pipes." Proceedings of the 2010 8th International Pipeline Conference. 2010 8th International Pipeline Conference, Volume 1. Calgary, Alberta, Canada. September 27–October 1, 2010. pp. 873-880. ASME. https://doi.org/10.1115/IPC2010-31581
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