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Burst pressure estimation of corroded pipeline with interacting defects using FEA

Aminudin, Ahmad Shakir (2011) Burst pressure estimation of corroded pipeline with interacting defects using FEA. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

Failure due to corrosion defects has been the major problem in maintaining pipeline's integrity. The loss ofmetal due to corrosion usually results in localized pits with various depth and irregular shapes which occur on its external and internal surfaces. An interacting defect is one that is located sufficiently close and able to interact with neighboring defects in an axial or circumferential direction. The maximum allowable pressure that can be sustained in a pipeline with interacting. defects is lower than it is in single defects due to interaction of neighboring defects. There are several methods available to assess the corrosion metal loss defects in order to evaluate Fitness-forServices (FFS) of the corroded pipeline. In this study, finite element simulations will be carried out to determine the maximum allowable burst strength of corroded pipeline with interacting defects. The finite element analysis (FEA) results show that failure pressure of corroded pipeline with interaeting defects are higher than empirical values gained from DNV-RP-F!Ol Code, IV

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Metals alloys - Phase transformation
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 08 Nov 2013 09:42
Last Modified: 25 Jan 2017 09:41
URI: http://utpedia.utp.edu.my/id/eprint/10311

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