Modeling and analysis of a free spaning pipeline with randomly distributed corrosion

Some corrosion defects will appear outside the aged submarine pipelines due to the corrosive sea environment. These defects can depress the strength and integration of the pipeline systems. This paper establishes a novel model using finite element method to describe the corroded pipelines with rando...

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Bibliographic Details
Published in:29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B
Main Authors: 李磊, 林缅, Lin, M.
Format: Other/Unknown Material
Language:English
Published: 2010
Subjects:
Characteristic Parameter
Corroded Pipelines
Corrosion Defect
Distributed Parameter
Fluid Forces
Free Spaning Pipelines
Free Spanning Pipelines
Modeling And Analysis
Operation Status
Pipe-line Systems
Probability Functions
Randomly Distributed
Arctic
Online Access:http://dspace.imech.ac.cn/handle/311007/60352
https://doi.org/10.1115/OMAE2010-20781
Description
Summary:Some corrosion defects will appear outside the aged submarine pipelines due to the corrosive sea environment. These defects can depress the strength and integration of the pipeline systems. This paper establishes a novel model using finite element method to describe the corroded pipelines with randomly distributed corrosion defects according to the probability function. Several free spanning pipelines models with random corrosion of different distributed parameters (averaged value and variance) are presented. Then the displacement and stress distribution of the pipelines are calculated subject to external fluid forces. The wet modes are calculated subsequently. At last the effects of the characteristic parameters of corrosion defects are discussed by analyzing the present results. Some conclusion may be useful for perceiving the randomly distributed corrosion how to affect the pipelines operation status. © 2010 by ASME.

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