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Article Dans Une Revue Frattura ed Integrità Strutturale / Fracture and Structural Integrity Année : 2020

Prediction of the burst pressure for defective pipelines using different semi-empirical models

Résumé

The main aim of this work is to predict the theoretical burst pressure of defective pipelines using different semi-empirical models and compare them with the hydrostatic test results. A new methodology was formulated with accounting for a minimum thickness (weakest section of the pipe) over the length of the pipe to predict the most conservative burst pressure. With a simple analytical expression, a reasonable accuracy and more conservative burst pressure can be obtained for any arbitrary defect shapes. A variation of burst pressure was found between theoretical prediction and hydrostatic burst test results with respect to the different semi-empirical models even for the same corroded defects. Different defect geometry shape and pipe material conditions are the possible causes for variation in the burst pressure between the semi-empirical models, so a careful selection of these parameters is necessary. The proposed methodology predicted a more conservative burst pressure for all arbitrary defects shapes and can predict reasonably accurate values if it accounts for the axial stress.
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Dates et versions

hal-04256996 , version 1 (24-10-2023)

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Paternité

Identifiants

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Silvio DE BARROS, Sandip Budhe, M D Banea. Prediction of the burst pressure for defective pipelines using different semi-empirical models. Frattura ed Integrità Strutturale / Fracture and Structural Integrity, 2020, 14 (52), pp.137-147. ⟨10.3221/IGF-ESIS.52.12⟩. ⟨hal-04256996⟩
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