Effects of Elevated Temperature Curing on Glass Transition Temperature of Steel/CFRP Joint and Pure Epoxy Adhesive

Glass transition temperature (Tg) of the steel/epoxy/CFRP composite bond can affect the service and fire performance of the system. Two test series were conducted to evaluate the Tg of the pure epoxy adhesive and the steel/epoxy/CFRP bond. A total of twenty-six double strap joints and pure epoxy ad...

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Main Authors: E.R.K. Chandrathilaka, J.C.P.H. Gamage, S. Fawzia
Format: Article
Language:English
Published: Electronic Journals for Science and Engineering - International 2018-06-01
Series:Electronic Journal of Structural Engineering
Subjects:
Online Access:https://ejsei.com/EJSE/article/view/258
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author E.R.K. Chandrathilaka
J.C.P.H. Gamage
S. Fawzia
author_facet E.R.K. Chandrathilaka
J.C.P.H. Gamage
S. Fawzia
author_sort E.R.K. Chandrathilaka
collection DOAJ
description Glass transition temperature (Tg) of the steel/epoxy/CFRP composite bond can affect the service and fire performance of the system. Two test series were conducted to evaluate the Tg of the pure epoxy adhesive and the steel/epoxy/CFRP bond. A total of twenty-six double strap joints and pure epoxy adhesive samples were prepared under different curing conditions to check the Tg of bond. Six different curing conditions were used. The test results revealed that the elevated temperature curing has a significant affect on the Tg of steel/epoxy/CFRP bond and pure epoxy adhesive. A considerable improvement of Tg was noted in the joint with elevated temperature curing when compare with the epoxy adhesive samples cured under the same condition. The strength degradation of the bond for a certain temperature exposure is also reduced with increased Tg of the joint.
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spelling doaj.art-f9532dc36a42471e8809bc267f679b082023-08-29T10:25:32ZengElectronic Journals for Science and Engineering - InternationalElectronic Journal of Structural Engineering1443-92552018-06-0118210.56748/ejse.182582Effects of Elevated Temperature Curing on Glass Transition Temperature of Steel/CFRP Joint and Pure Epoxy AdhesiveE.R.K. Chandrathilaka0J.C.P.H. Gamage1S. Fawzia2University of MoratuwaUniversity of Moratuwa Queensland University of Technology Glass transition temperature (Tg) of the steel/epoxy/CFRP composite bond can affect the service and fire performance of the system. Two test series were conducted to evaluate the Tg of the pure epoxy adhesive and the steel/epoxy/CFRP bond. A total of twenty-six double strap joints and pure epoxy adhesive samples were prepared under different curing conditions to check the Tg of bond. Six different curing conditions were used. The test results revealed that the elevated temperature curing has a significant affect on the Tg of steel/epoxy/CFRP bond and pure epoxy adhesive. A considerable improvement of Tg was noted in the joint with elevated temperature curing when compare with the epoxy adhesive samples cured under the same condition. The strength degradation of the bond for a certain temperature exposure is also reduced with increased Tg of the joint. https://ejsei.com/EJSE/article/view/258Elevated temperature curingGlass transition temperatureCFRP/steel jointsEpoxy adhesiveService performance
spellingShingle E.R.K. Chandrathilaka
J.C.P.H. Gamage
S. Fawzia
Effects of Elevated Temperature Curing on Glass Transition Temperature of Steel/CFRP Joint and Pure Epoxy Adhesive
Electronic Journal of Structural Engineering
Elevated temperature curing
Glass transition temperature
CFRP/steel joints
Epoxy adhesive
Service performance
title Effects of Elevated Temperature Curing on Glass Transition Temperature of Steel/CFRP Joint and Pure Epoxy Adhesive
title_full Effects of Elevated Temperature Curing on Glass Transition Temperature of Steel/CFRP Joint and Pure Epoxy Adhesive
title_fullStr Effects of Elevated Temperature Curing on Glass Transition Temperature of Steel/CFRP Joint and Pure Epoxy Adhesive
title_full_unstemmed Effects of Elevated Temperature Curing on Glass Transition Temperature of Steel/CFRP Joint and Pure Epoxy Adhesive
title_short Effects of Elevated Temperature Curing on Glass Transition Temperature of Steel/CFRP Joint and Pure Epoxy Adhesive
title_sort effects of elevated temperature curing on glass transition temperature of steel cfrp joint and pure epoxy adhesive
topic Elevated temperature curing
Glass transition temperature
CFRP/steel joints
Epoxy adhesive
Service performance
url https://ejsei.com/EJSE/article/view/258
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