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The effect of corrosion defects on burst pressure of pipelines

The predictions of pipeline burst pressure in the early stage are very importance in order to provide assessment for future inspection, repair and replacement activities. The failure of oil and gas pipelines contribute to economic implications and also constitute a serious hazards to the environment...

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Main Author: Khairul Anwar, Ibrahim
Format: Undergraduates Project Papers
Language:English
Published: 2012
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/4601/1/cd6633_106.pdf
http://umpir.ump.edu.my/id/eprint/4601/
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spelling my.ump.umpir.46012021-07-19T04:10:01Z http://umpir.ump.edu.my/id/eprint/4601/ The effect of corrosion defects on burst pressure of pipelines Khairul Anwar, Ibrahim TA Engineering (General). Civil engineering (General) The predictions of pipeline burst pressure in the early stage are very importance in order to provide assessment for future inspection, repair and replacement activities. The failure of oil and gas pipelines contribute to economic implications and also constitute a serious hazards to the environment due to leakage. This thesis deals with the study on the effect of corrosion defect on the burst pressure of pipelines for API 5L X42 steel. The objectives for this project are to determine the burst pressure of corroded pipelines using Finite Element Analysis (FEA) and to compare the results with the available pipelines design code. This project implicates analysis of the API X42 steel by using MSC Patran 2008 r1 software as pre-processor and MSC Marc 2008 r1 software as a solver. A quarter of pipe was simulated by fully applying the symmetrical condition. The pipe is modeled in 3-D with outer diameter of 60 mm, wall thickness of 6 mm and different defect parameters. In this analysis, stress modified critical strain used as failure criterion to predict the failure of defective pipe. Result shows that the burst pressure decreases when both defect depth and length increases. The defect depth appear as a most influence parameter that affect the burst pressure. The circumferential extent has a less influence on the burst pressure. The results have been compared to available design codes for corroded pipelines such as ASME B31G, Modified ASME B31G and DNV RP F101. Comparison with available design codes have shown that FEA burst pressure gives higher values compare to codes. From the results, ASME B31G gives the lowest values than other codes. 2012-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4601/1/cd6633_106.pdf Khairul Anwar, Ibrahim (2012) The effect of corrosion defects on burst pressure of pipelines. Faculty of Mechanical Engineering, Universiti Malaysia Pahang.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Khairul Anwar, Ibrahim
The effect of corrosion defects on burst pressure of pipelines
description The predictions of pipeline burst pressure in the early stage are very importance in order to provide assessment for future inspection, repair and replacement activities. The failure of oil and gas pipelines contribute to economic implications and also constitute a serious hazards to the environment due to leakage. This thesis deals with the study on the effect of corrosion defect on the burst pressure of pipelines for API 5L X42 steel. The objectives for this project are to determine the burst pressure of corroded pipelines using Finite Element Analysis (FEA) and to compare the results with the available pipelines design code. This project implicates analysis of the API X42 steel by using MSC Patran 2008 r1 software as pre-processor and MSC Marc 2008 r1 software as a solver. A quarter of pipe was simulated by fully applying the symmetrical condition. The pipe is modeled in 3-D with outer diameter of 60 mm, wall thickness of 6 mm and different defect parameters. In this analysis, stress modified critical strain used as failure criterion to predict the failure of defective pipe. Result shows that the burst pressure decreases when both defect depth and length increases. The defect depth appear as a most influence parameter that affect the burst pressure. The circumferential extent has a less influence on the burst pressure. The results have been compared to available design codes for corroded pipelines such as ASME B31G, Modified ASME B31G and DNV RP F101. Comparison with available design codes have shown that FEA burst pressure gives higher values compare to codes. From the results, ASME B31G gives the lowest values than other codes.
format Undergraduates Project Papers
author Khairul Anwar, Ibrahim
author_facet Khairul Anwar, Ibrahim
author_sort Khairul Anwar, Ibrahim
title The effect of corrosion defects on burst pressure of pipelines
title_short The effect of corrosion defects on burst pressure of pipelines
title_full The effect of corrosion defects on burst pressure of pipelines
title_fullStr The effect of corrosion defects on burst pressure of pipelines
title_full_unstemmed The effect of corrosion defects on burst pressure of pipelines
title_sort effect of corrosion defects on burst pressure of pipelines
publishDate 2012
url http://umpir.ump.edu.my/id/eprint/4601/1/cd6633_106.pdf
http://umpir.ump.edu.my/id/eprint/4601/
_version_ 1706957161873014784
score 13.211869

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