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Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline

Composite pipeline repair systems involving infill material and composite wrapper are a common method of enhancing the integrity of damaged oil and gas pipelines. Composite wrappers can be theoretically optimised by minimising the layers of wrapper whilst reinforcing the infill material; i.e., putty...

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Main Authors:	Arifin, Hanis Hazirah, Zardasti, Libriati, Lim, Kar Sing, Md. Noor, Norhazilan, Yahaya, Nordin, Mazlan, Ain Naadia, Mohd. Sam, Abdul Rahman
Format:	Article
Published:	Elsevier Ltd 2021
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/94490/ http://dx.doi.org/10.1016/j.ijpvp.2021.104537
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id	my.utm.94490
record_format	eprints
spelling	my.utm.944902022-03-31T15:46:36Z http://eprints.utm.my/id/eprint/94490/ Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline Arifin, Hanis Hazirah Zardasti, Libriati Lim, Kar Sing Md. Noor, Norhazilan Yahaya, Nordin Mazlan, Ain Naadia Mohd. Sam, Abdul Rahman TA Engineering (General). Civil engineering (General) Composite pipeline repair systems involving infill material and composite wrapper are a common method of enhancing the integrity of damaged oil and gas pipelines. Composite wrappers can be theoretically optimised by minimising the layers of wrapper whilst reinforcing the infill material; i.e., putty. Integrating nanomaterial into putty to enhance its strength is a novel approach to provide secondary layer protection of damaged pipelines. A finite element model simulating a composite repaired pipe was developed to investigate the influence of reinforced Carbon Nanotubes putty on the system's overall repair performance and behaviour. The result was verified with a previous experimental hydrostatic burst pressure test and industrial standard resulting in less than a 15% error margin. The result shows the damaged artificial pipe segment filled with two different putties, namely Grout A and Grout B, ruptured at 32.22 MPa and 32.93 MPa, respectively. The reinforced putty improved the load-bearing capacity of the repaired pipe by a marginal increment of 2.2%. It demonstrated a better load-transfer and load-sharing mechanism than the common composite repair system. The recorded burst failure of the repaired pipe was less abrupt, thus minimising the sudden rupture of the pipeline by acting as a secondary layer of protection in the event of a composite wrapper failure. Elsevier Ltd 2021-12-01 Article PeerReviewed Arifin, Hanis Hazirah and Zardasti, Libriati and Lim, Kar Sing and Md. Noor, Norhazilan and Yahaya, Nordin and Mazlan, Ain Naadia and Mohd. Sam, Abdul Rahman (2021) Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline. International Journal of Pressure Vessels and Piping, 194 . ISSN 0308-0161 http://dx.doi.org/10.1016/j.ijpvp.2021.104537 DOI:10.1016/j.ijpvp.2021.104537
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Arifin, Hanis Hazirah Zardasti, Libriati Lim, Kar Sing Md. Noor, Norhazilan Yahaya, Nordin Mazlan, Ain Naadia Mohd. Sam, Abdul Rahman Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline
description	Composite pipeline repair systems involving infill material and composite wrapper are a common method of enhancing the integrity of damaged oil and gas pipelines. Composite wrappers can be theoretically optimised by minimising the layers of wrapper whilst reinforcing the infill material; i.e., putty. Integrating nanomaterial into putty to enhance its strength is a novel approach to provide secondary layer protection of damaged pipelines. A finite element model simulating a composite repaired pipe was developed to investigate the influence of reinforced Carbon Nanotubes putty on the system's overall repair performance and behaviour. The result was verified with a previous experimental hydrostatic burst pressure test and industrial standard resulting in less than a 15% error margin. The result shows the damaged artificial pipe segment filled with two different putties, namely Grout A and Grout B, ruptured at 32.22 MPa and 32.93 MPa, respectively. The reinforced putty improved the load-bearing capacity of the repaired pipe by a marginal increment of 2.2%. It demonstrated a better load-transfer and load-sharing mechanism than the common composite repair system. The recorded burst failure of the repaired pipe was less abrupt, thus minimising the sudden rupture of the pipeline by acting as a secondary layer of protection in the event of a composite wrapper failure.
format	Article
author	Arifin, Hanis Hazirah Zardasti, Libriati Lim, Kar Sing Md. Noor, Norhazilan Yahaya, Nordin Mazlan, Ain Naadia Mohd. Sam, Abdul Rahman
author_facet	Arifin, Hanis Hazirah Zardasti, Libriati Lim, Kar Sing Md. Noor, Norhazilan Yahaya, Nordin Mazlan, Ain Naadia Mohd. Sam, Abdul Rahman
author_sort	Arifin, Hanis Hazirah
title	Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline
title_short	Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline
title_full	Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline
title_fullStr	Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline
title_full_unstemmed	Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline
title_sort	stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline
publisher	Elsevier Ltd
publishDate	2021
url	http://eprints.utm.my/id/eprint/94490/ http://dx.doi.org/10.1016/j.ijpvp.2021.104537
_version_	1729703179530010624
score	13.222552

Stress distribution analysis of composite repair with carbon nanotubes reinforced putty for damaged steel pipeline

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