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Lookup NU author(s): Dr Enrong Chang
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).
© 2020 Elsevier Ltd. Accurate prediction of the burst pressure of a pipeline is critical for pipeline design and safe operation. It is usually achieved by using analytical and empirical formulae derived from theoretical, numerical and experimental methods. This study was carried out to develop a new methodology to predict the burst pressure for API 5L X grade flawless pipelines. The newly proposed methodology has been developed using finite element analysis, employing a bilinear material model using the tangent modulus approach. In this approach, the strain at ultimate tensile strength has been derived from analysis of API 5L X grade material coupon test data. A comprehensive nonlinear finite element parametric study was conducted with this bilinear material model. The results were used to derive an empirical formula for estimating the burst pressure of API 5L X grade flawless pipelines. It was found that the best agreement was achieved between the burst pressure calculated by the proposed formula and the burst test results. Therefore, it can be concluded that the burst pressure prediction empirical formula derived by following the proposed methodology can calculate an accurate burst pressure for the API 5L X grade flawless pipelines.
Author(s): Oh DH, Race J, Oterkus S, Chang E
Publication type: Article
Publication status: Published
Journal: Ocean Engineering
Year: 2020
Volume: 212
Print publication date: 15/09/2020
Online publication date: 24/06/2020
Acceptance date: 30/05/2020
Date deposited: 10/11/2021
ISSN (print): 0029-8018
ISSN (electronic): 1873-5258
Publisher: Elsevier Ltd
URL: https://doi.org/10.1016/j.oceaneng.2020.107602
DOI: 10.1016/j.oceaneng.2020.107602
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