Effect of defect width upon burst capacity of composite repaired pipe

In recent years, FRP composite wrap repair is the most preferable pipeline rehabilitation system used in the pipeline industry. However, some issues concerning this repair method are not fully understood by the industry. Effect of defect geometries toward the efficiency of composite repaired pipe is...

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Main Authors:	K. E., Leong, K. S., Lim, A. S., Sulaiman, S. C., Chin, Nordin, Yahaya
Format:	Conference or Workshop Item
Language:	English
Published:	2019
Subjects:	TF Railroad engineering and operation
Online Access:	http://umpir.ump.edu.my/id/eprint/26543/ http://umpir.ump.edu.my/id/eprint/26543/1/11.%20Effect%20of%20defect%20width%20upon%20burst%20capacity%20of%20composite%20repaired%20pipe.pdf

id	ump-26543
recordtype	eprints
spelling	ump-265432019-11-20T08:35:54Z http://umpir.ump.edu.my/id/eprint/26543/ Effect of defect width upon burst capacity of composite repaired pipe K. E., Leong K. S., Lim A. S., Sulaiman S. C., Chin Nordin, Yahaya TF Railroad engineering and operation In recent years, FRP composite wrap repair is the most preferable pipeline rehabilitation system used in the pipeline industry. However, some issues concerning this repair method are not fully understood by the industry. Effect of defect geometries toward the efficiency of composite repaired pipe is one of the issues that concerned by the industry. Pipeline repair design codes and standards have been developed mainly focus on the defect depth and neglect other defect geometries such as defect length and defect width. Previous studies stated that defect geometries especially defect width should not be ignored in evaluating and designing pipe repair system. Therefore, the burst pressure of the composite repaired pipeline subjected to various defect widths was determined through this study in order to evaluate the effect of defect width upon the burst capacity of composite repaired pipeline. Finite element analysis was used to determine the burst capacity of the composite repaired pipe with rectangular shape of defect. There are three different widths were selected with constant defect length and depth. The base model of composite repaired pipe was developed and validated and then modified with the various defect widths in this study. The result shows that burst pressure for three different models vary with a percentage of 12.51% between the maximum burst pressure and minimum burst pressure. The stress contour plot extracted from the finite element analysis revealed that the area of highest stress (557.7MPa) is located around defect region. As the defect is getting wider and subsequently creating a bigger defect area, stress concentration is also getting larger at the defect region. With this, the composite repaired pipe tends to fail at lower pressure when the defect getting wider. Based on the results, the defect width is proven to affect the burst capacity of composite repaired pipe. 2019 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/26543/1/11.%20Effect%20of%20defect%20width%20upon%20burst%20capacity%20of%20composite%20repaired%20pipe.pdf K. E., Leong and K. S., Lim and A. S., Sulaiman and S. C., Chin and Nordin, Yahaya (2019) Effect of defect width upon burst capacity of composite repaired pipe. In: Proceedings of 3rd National Conference on Wind & Earthquake Engineering and 1st International Seminar On Sustainable Construction Engineering (NCWE & ISSCE 2019), 12-13 July 2019 , Kuala Lumpur, Malaysia. pp. 111-118..
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TF Railroad engineering and operation
spellingShingle	TF Railroad engineering and operation K. E., Leong K. S., Lim A. S., Sulaiman S. C., Chin Nordin, Yahaya Effect of defect width upon burst capacity of composite repaired pipe
description	In recent years, FRP composite wrap repair is the most preferable pipeline rehabilitation system used in the pipeline industry. However, some issues concerning this repair method are not fully understood by the industry. Effect of defect geometries toward the efficiency of composite repaired pipe is one of the issues that concerned by the industry. Pipeline repair design codes and standards have been developed mainly focus on the defect depth and neglect other defect geometries such as defect length and defect width. Previous studies stated that defect geometries especially defect width should not be ignored in evaluating and designing pipe repair system. Therefore, the burst pressure of the composite repaired pipeline subjected to various defect widths was determined through this study in order to evaluate the effect of defect width upon the burst capacity of composite repaired pipeline. Finite element analysis was used to determine the burst capacity of the composite repaired pipe with rectangular shape of defect. There are three different widths were selected with constant defect length and depth. The base model of composite repaired pipe was developed and validated and then modified with the various defect widths in this study. The result shows that burst pressure for three different models vary with a percentage of 12.51% between the maximum burst pressure and minimum burst pressure. The stress contour plot extracted from the finite element analysis revealed that the area of highest stress (557.7MPa) is located around defect region. As the defect is getting wider and subsequently creating a bigger defect area, stress concentration is also getting larger at the defect region. With this, the composite repaired pipe tends to fail at lower pressure when the defect getting wider. Based on the results, the defect width is proven to affect the burst capacity of composite repaired pipe.
format	Conference or Workshop Item
author	K. E., Leong K. S., Lim A. S., Sulaiman S. C., Chin Nordin, Yahaya
author_facet	K. E., Leong K. S., Lim A. S., Sulaiman S. C., Chin Nordin, Yahaya
author_sort	K. E., Leong
title	Effect of defect width upon burst capacity of composite repaired pipe
title_short	Effect of defect width upon burst capacity of composite repaired pipe
title_full	Effect of defect width upon burst capacity of composite repaired pipe
title_fullStr	Effect of defect width upon burst capacity of composite repaired pipe
title_full_unstemmed	Effect of defect width upon burst capacity of composite repaired pipe
title_sort	effect of defect width upon burst capacity of composite repaired pipe
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/26543/ http://umpir.ump.edu.my/id/eprint/26543/1/11.%20Effect%20of%20defect%20width%20upon%20burst%20capacity%20of%20composite%20repaired%20pipe.pdf
first_indexed	2023-09-18T22:41:23Z
last_indexed	2023-09-18T22:41:23Z
_version_	1777416938429874176

Effect of defect width upon burst capacity of composite repaired pipe

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