Numerical analysis on bonding stress of carbon fibre reinforced epoxy

The application of fibre reinforced polymer (FRP) composites in pipelines repairing and rehabilitation process revolutionizes the whole oil and gas industry especially in a condition which repair technique is hard to be implemented. The bond strength between FRP and the pipeline metal is the major e...

Full description

Saved in:

Bibliographic Details
Main Author:	Md. Dani, Mohamad Airul Amin
Format:	Thesis
Language:	English
Published:	2022
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/102568/1/MohamadAirulAminMSKM2022.pdf.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-utm-ep.102568
record_format	uketd_dc
spelling	my-utm-ep.1025682023-09-09T01:30:40Z Numerical analysis on bonding stress of carbon fibre reinforced epoxy 2022 Md. Dani, Mohamad Airul Amin TJ Mechanical engineering and machinery The application of fibre reinforced polymer (FRP) composites in pipelines repairing and rehabilitation process revolutionizes the whole oil and gas industry especially in a condition which repair technique is hard to be implemented. The bond strength between FRP and the pipeline metal is the major element in determining the system strength. Numerous researchers studied the adhesion failure between FRP and metal using both experimental work and finite element (FE) simulation. However, the evaluation of bond strength has been specifically constraint within the bonding system and materials used only. This study aimed to simulate the pipeline repair system and investigate the adhesion shear stress acting at the joint using FE analysis. Double strap joint (DSJ) samples consisted of carbon fibre reinforced epoxy (CFRE) and ASTM A36 steel as the adherend were prepared to model the repairing system using SIKADUR 330 epoxy as the adhesive. A number of parametric tests was performed to obtain material data input for FE simulation. FE model of the DSJ samples was developed using ABAQUS software and a linear cohesive zone model was applied to model the behaviour of the cohesive layer. Laboratory tensile test was also conducted to validate the FE simulation results. The maximum load value in simulation result showed 9.8% higher than the result from experimental work while deeper analysis in stress distribution data provided an estimation of 69.1% effective length of the bonded area. A parametric study was conducted to evaluate the effect on the bond strength by varying adherend’s thickness and elastic modulus. For CFRE cases, the maximum applied load increased non-linearly with average increments of 2.08% and 1.25 % respectively, while adhesive horizontal displacement non-linearly decreased with average decrements of 6.16% and 5.62%, respectively as its thickness and modulus increased. Meanwhile, for ASTM A36 steel cases, a slight decrement was observed for maximum applied load with average decrements of 0.33% and 0.16%, while adhesive horizontal displacement non-linearly decreased with average decrements of 2.21% and 2.37 % respectively as its thickness and modulus increased. In conclusion, the stiffness of the bonded structure was influenced by both parameters, which beneficial in structural design. 2022 Thesis http://eprints.utm.my/102568/ http://eprints.utm.my/102568/1/MohamadAirulAminMSKM2022.pdf.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:149302 masters Universiti Teknologi Malaysia Faculty of Engineering - School of Mechanical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Md. Dani, Mohamad Airul Amin Numerical analysis on bonding stress of carbon fibre reinforced epoxy
description	The application of fibre reinforced polymer (FRP) composites in pipelines repairing and rehabilitation process revolutionizes the whole oil and gas industry especially in a condition which repair technique is hard to be implemented. The bond strength between FRP and the pipeline metal is the major element in determining the system strength. Numerous researchers studied the adhesion failure between FRP and metal using both experimental work and finite element (FE) simulation. However, the evaluation of bond strength has been specifically constraint within the bonding system and materials used only. This study aimed to simulate the pipeline repair system and investigate the adhesion shear stress acting at the joint using FE analysis. Double strap joint (DSJ) samples consisted of carbon fibre reinforced epoxy (CFRE) and ASTM A36 steel as the adherend were prepared to model the repairing system using SIKADUR 330 epoxy as the adhesive. A number of parametric tests was performed to obtain material data input for FE simulation. FE model of the DSJ samples was developed using ABAQUS software and a linear cohesive zone model was applied to model the behaviour of the cohesive layer. Laboratory tensile test was also conducted to validate the FE simulation results. The maximum load value in simulation result showed 9.8% higher than the result from experimental work while deeper analysis in stress distribution data provided an estimation of 69.1% effective length of the bonded area. A parametric study was conducted to evaluate the effect on the bond strength by varying adherend’s thickness and elastic modulus. For CFRE cases, the maximum applied load increased non-linearly with average increments of 2.08% and 1.25 % respectively, while adhesive horizontal displacement non-linearly decreased with average decrements of 6.16% and 5.62%, respectively as its thickness and modulus increased. Meanwhile, for ASTM A36 steel cases, a slight decrement was observed for maximum applied load with average decrements of 0.33% and 0.16%, while adhesive horizontal displacement non-linearly decreased with average decrements of 2.21% and 2.37 % respectively as its thickness and modulus increased. In conclusion, the stiffness of the bonded structure was influenced by both parameters, which beneficial in structural design.
format	Thesis
qualification_level	Master's degree
author	Md. Dani, Mohamad Airul Amin
author_facet	Md. Dani, Mohamad Airul Amin
author_sort	Md. Dani, Mohamad Airul Amin
title	Numerical analysis on bonding stress of carbon fibre reinforced epoxy
title_short	Numerical analysis on bonding stress of carbon fibre reinforced epoxy
title_full	Numerical analysis on bonding stress of carbon fibre reinforced epoxy
title_fullStr	Numerical analysis on bonding stress of carbon fibre reinforced epoxy
title_full_unstemmed	Numerical analysis on bonding stress of carbon fibre reinforced epoxy
title_sort	numerical analysis on bonding stress of carbon fibre reinforced epoxy
granting_institution	Universiti Teknologi Malaysia
granting_department	Faculty of Engineering - School of Mechanical Engineering
publishDate	2022
url	http://eprints.utm.my/102568/1/MohamadAirulAminMSKM2022.pdf.pdf
_version_	1783729182586437632

Numerical analysis on bonding stress of carbon fibre reinforced epoxy

Similar Items