Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline

Oil and gas pipelines are subjected to various types of deterioration and damage over long service years. These damaged pipes often experience loss of strength and structural integrity. Repair mechanisms have been developed in restoring the loading capacity of damaged pipelines, and composite repair...

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Main Authors:	Lim, Kar Sing, Nordin, Yahaya, Valipour, Alireza, Zardasti, Libriati, Siti Nur Afifah, Azraai, Norhazilan, Md Noor
Format:	Article
Language:	English
Published:	ASME 2018
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/23185/ http://umpir.ump.edu.my/id/eprint/23185/ http://umpir.ump.edu.my/id/eprint/23185/ http://umpir.ump.edu.my/id/eprint/23185/1/Mechanical%20Properties%20Characterization%20and%20Finite1.pdf

id	ump-23185
recordtype	eprints
spelling	ump-231852019-01-09T01:43:31Z http://umpir.ump.edu.my/id/eprint/23185/ Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline Lim, Kar Sing Nordin, Yahaya Valipour, Alireza Zardasti, Libriati Siti Nur Afifah, Azraai Norhazilan, Md Noor TA Engineering (General). Civil engineering (General) Oil and gas pipelines are subjected to various types of deterioration and damage over long service years. These damaged pipes often experience loss of strength and structural integrity. Repair mechanisms have been developed in restoring the loading capacity of damaged pipelines, and composite repair systems have become popular over the past few years. The mechanical properties of the putty/grout are critical to their potential application as infill materials in structural repair. In this paper, the compression, tensile, and flexural behavior of four epoxy grouts was investigated through laboratory tests. The stiffness of the grouts for compression, tensile, and flexural was found to be 6 GPa to 18 GPa, 4 GPa to 15 GPa, and 4 GPa to 12 GPa, respectively. The ultimate strength for all grouts was found from 62 MPa to 87 MPa, 18 MPa to 38 MPa, and 34 MPa to 62 MPa under compression, tensile, and flexural tests, respectively. The behavior of all the tested grouts is discussed. A finite element (FE) model simulating a composite-repaired pipe was developed and compared with past studies. The FE results show a good correlation with experimental test with margin of error less than 10%. By replacing the infill properties in FE model to mimic the used of different infill material for the repair, it was found that about 4–8% increment in burst pressure can be achieved. This signifies that the role of infill material is not only limited to transferring the load, but it also has the potential to increase overall performance of composite-repaired pipe. ASME 2018-12 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23185/1/Mechanical%20Properties%20Characterization%20and%20Finite1.pdf Lim, Kar Sing and Nordin, Yahaya and Valipour, Alireza and Zardasti, Libriati and Siti Nur Afifah, Azraai and Norhazilan, Md Noor (2018) Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline. Journal of Pressure Vessel Technology, 140 (6). 061701-1. ISSN 0094-9930 (print); 1528-8978 (online) http://pressurevesseltech.asmedigitalcollection.asme.org/article.aspx?articleid=2709790 https://doi.org/10.1115/1.4041792
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Lim, Kar Sing Nordin, Yahaya Valipour, Alireza Zardasti, Libriati Siti Nur Afifah, Azraai Norhazilan, Md Noor Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline
description	Oil and gas pipelines are subjected to various types of deterioration and damage over long service years. These damaged pipes often experience loss of strength and structural integrity. Repair mechanisms have been developed in restoring the loading capacity of damaged pipelines, and composite repair systems have become popular over the past few years. The mechanical properties of the putty/grout are critical to their potential application as infill materials in structural repair. In this paper, the compression, tensile, and flexural behavior of four epoxy grouts was investigated through laboratory tests. The stiffness of the grouts for compression, tensile, and flexural was found to be 6 GPa to 18 GPa, 4 GPa to 15 GPa, and 4 GPa to 12 GPa, respectively. The ultimate strength for all grouts was found from 62 MPa to 87 MPa, 18 MPa to 38 MPa, and 34 MPa to 62 MPa under compression, tensile, and flexural tests, respectively. The behavior of all the tested grouts is discussed. A finite element (FE) model simulating a composite-repaired pipe was developed and compared with past studies. The FE results show a good correlation with experimental test with margin of error less than 10%. By replacing the infill properties in FE model to mimic the used of different infill material for the repair, it was found that about 4–8% increment in burst pressure can be achieved. This signifies that the role of infill material is not only limited to transferring the load, but it also has the potential to increase overall performance of composite-repaired pipe.
format	Article
author	Lim, Kar Sing Nordin, Yahaya Valipour, Alireza Zardasti, Libriati Siti Nur Afifah, Azraai Norhazilan, Md Noor
author_facet	Lim, Kar Sing Nordin, Yahaya Valipour, Alireza Zardasti, Libriati Siti Nur Afifah, Azraai Norhazilan, Md Noor
author_sort	Lim, Kar Sing
title	Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline
title_short	Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline
title_full	Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline
title_fullStr	Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline
title_full_unstemmed	Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline
title_sort	mechanical properties characterization and finite element analysis of epoxy grouts in repairing damaged pipeline
publisher	ASME
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/23185/ http://umpir.ump.edu.my/id/eprint/23185/ http://umpir.ump.edu.my/id/eprint/23185/ http://umpir.ump.edu.my/id/eprint/23185/1/Mechanical%20Properties%20Characterization%20and%20Finite1.pdf
first_indexed	2023-09-18T22:34:38Z
last_indexed	2023-09-18T22:34:38Z
_version_	1777416513176731648

Mechanical Properties Characterization and Finite Element Analysis of Epoxy Grouts in Repairing Damaged Pipeline

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