Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel

The detection of an early fatigue phenomenain a gas pipeline is crucial to avoid catastrophic consequences. Therefore,appropriate inspection is needed to assess the fatigue phenomena in a gas pipeline system. The acoustic emission (AE) technology is expected to be suitable in this regards. This pap...

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Main Authors:	Mohd Fadhlan, Mohd Yusof, Ummu Kulthum, Jamaludin, S., Abdullah, Z.H., Hanafi, M.S., M. Zain
Format:	Article
Language:	English
Published:	Faculty Mechanical Engineering, UMP 2012
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/2883/ http://umpir.ump.edu.my/id/eprint/2883/ http://umpir.ump.edu.my/id/eprint/2883/1/MONITORING_AND_ASSESSMENT_OF_ACOUSTIC_EMISSION_SIGNATURES.pdf

id	ump-2883
recordtype	eprints
spelling	ump-28832018-11-30T01:42:31Z http://umpir.ump.edu.my/id/eprint/2883/ Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel Mohd Fadhlan, Mohd Yusof Ummu Kulthum, Jamaludin S., Abdullah Z.H., Hanafi M.S., M. Zain TJ Mechanical engineering and machinery The detection of an early fatigue phenomenain a gas pipeline is crucial to avoid catastrophic consequences. Therefore,appropriate inspection is needed to assess the fatigue phenomena in a gas pipeline system. The acoustic emission (AE) technology is expected to be suitable in this regards. This paper presents the monitoring and assessment of AE signatures during fatigue mechanism of gas pipeline material, API 5L X70 steel. The stress amplitude of 65, 60, 58 and 53% of ultimate tensile strength were done in order to observe the AE activity during the fatigue mechanism. The field measurements were also being done by commencing the AE signatures from the in- operation gas pipeline for comparison purpose. Based on the correlations of AE signatures and fatigue mechanism, it was found that the AE activities generated during fatigue mechanism were divided into three different stages. Analysis of the AE features and statistical parameters have shown that the kurtosis values of the time domain AE signatures from the third stage of the fatigue mechanism were different from the field measurement. This results show that application of the kurtosis was expected to be able to detect the time domain AE signatures from crack stage. Faculty Mechanical Engineering, UMP 2012-06 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/2883/1/MONITORING_AND_ASSESSMENT_OF_ACOUSTIC_EMISSION_SIGNATURES.pdf Mohd Fadhlan, Mohd Yusof and Ummu Kulthum, Jamaludin and S., Abdullah and Z.H., Hanafi and M.S., M. Zain (2012) Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel. Journal of Mechanical Engineering and Sciences (JMES), 2 (June 2). 237 -250. ISSN 2231-8380 http://jmes.ump.edu.my/images/Volume%202%20JUNE%202012/Yusof%20et%20al.pdf
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mohd Fadhlan, Mohd Yusof Ummu Kulthum, Jamaludin S., Abdullah Z.H., Hanafi M.S., M. Zain Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel
description	The detection of an early fatigue phenomenain a gas pipeline is crucial to avoid catastrophic consequences. Therefore,appropriate inspection is needed to assess the fatigue phenomena in a gas pipeline system. The acoustic emission (AE) technology is expected to be suitable in this regards. This paper presents the monitoring and assessment of AE signatures during fatigue mechanism of gas pipeline material, API 5L X70 steel. The stress amplitude of 65, 60, 58 and 53% of ultimate tensile strength were done in order to observe the AE activity during the fatigue mechanism. The field measurements were also being done by commencing the AE signatures from the in- operation gas pipeline for comparison purpose. Based on the correlations of AE signatures and fatigue mechanism, it was found that the AE activities generated during fatigue mechanism were divided into three different stages. Analysis of the AE features and statistical parameters have shown that the kurtosis values of the time domain AE signatures from the third stage of the fatigue mechanism were different from the field measurement. This results show that application of the kurtosis was expected to be able to detect the time domain AE signatures from crack stage.
format	Article
author	Mohd Fadhlan, Mohd Yusof Ummu Kulthum, Jamaludin S., Abdullah Z.H., Hanafi M.S., M. Zain
author_facet	Mohd Fadhlan, Mohd Yusof Ummu Kulthum, Jamaludin S., Abdullah Z.H., Hanafi M.S., M. Zain
author_sort	Mohd Fadhlan, Mohd Yusof
title	Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel
title_short	Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel
title_full	Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel
title_fullStr	Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel
title_full_unstemmed	Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel
title_sort	monitoring and assessment of acoustic emission signatures during fatigue mechanism of api5lx70 gas pipeline steel
publisher	Faculty Mechanical Engineering, UMP
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/2883/ http://umpir.ump.edu.my/id/eprint/2883/ http://umpir.ump.edu.my/id/eprint/2883/1/MONITORING_AND_ASSESSMENT_OF_ACOUSTIC_EMISSION_SIGNATURES.pdf
first_indexed	2023-09-18T21:56:51Z
last_indexed	2023-09-18T21:56:51Z
_version_	1777414136503730176

Monitoring and Assessment of Acoustic Emission Signatures During Fatigue Mechanism of Api5lx70 Gas Pipeline Steel

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