Simulation Analysis of the Pressure Carrying Capacity of X80 Pipe with Plain Dents

Abstract:

In order to study the pressure carrying capacity of X80 pipe with plain dents, the formation process and the hydraulic test were analyzed by finite element simulation. Based on this, the sensitivity analysis of the factors affecting the pressure carrying capacity of the pipeline, such as the internal pressure, the confinement state and the material performance, is carried out. Research results show that springback amount of the pipeline decreases due to the initial internal pressure, and constraint state has little effect on the pressure carrying capacity while increases with the increasing of the material tensile properties. When the depth of the dent is less than 6% pipe diameter or the strain of the dent is less than 6%, the dent has little impact to the pressure carrying capacity of the pipe.

• Periodical: Materials Science Forum (Volume 944)
• Pages: 835-840
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.944.835
• Online since: January 2019
• Authors: Peng Song, Zheng Long Li*, Yu Ran Fan, Lei Guo, Xi Xi Zhang, You Cai Wei
• Keywords: Burst Pressure, Constraint, Finite Element Simulation, X80 Pipeline

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