Effect of glass fiber sheet in adhesive on the bond and galvanic corrosion behaviours of CFRP-Steel bonded system
File(s)
Accepted version
Author(s)
Wu, Chao
Yu, Yang-Zhe
Tam, Lik-ho
Orr, John
He, Li
Type
Journal Article
Abstract
Steel structures strengthened with CFRP composite may have potential galvanic corrosion issue. It was recommended that a layer of glass fiber sheet (GFS) be embedded in the adhesive layer to protect the CFRP-steel bonded system against galvanic corrosion. But the inclusion of GFS in the adhesive may negatively affect the bond behaviour between steel and CFRP. This paper investigated the effects of GFS on the corrosion behaviour and bond characteristics between steel and CFRP. Three types of experimental testing on CFRP-steel double strap joints with/without GFS were conducted, including accelerated corrosion testing, static and fatigue testing. Accelerated corrosion testing was carried out to justify the effectiveness of GFS in preventing galvanic corrosion of CFRP-steel bonded system. Static tension testing and fatigue testing were carried out to quantify the effect of GFS on the static and fatigue bond behaviour between steel and CFRP. The effects of GFS on the corrosion rate, failure mode, joint capacity and fatigue life were reported. Experimental results suggested that GFS may reduce the fatigue performance of the bond between steel and CFRP, although GFS may slightly improve the static bond behaviour. It is recommended that GFS can be included in the adhesive layer as an additional protection against the galvanic corrosion hazard in the CFRP-steel bonded system, provided that the system has no concern of fatigue loading.
Date Issued
2021-03-01
Date Acceptance
2020-10-27
Citation
Composite Structures, 2021, 259
ISSN
0263-8223
Publisher
Elsevier
Journal / Book Title
Composite Structures
Volume
259
Copyright Statement
Copyright © Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000609384900018&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
Bond
CFRP
Double strap joint
DURABILITY
Galvanic corrosion
Glass fiber sheet
JOINTS
Materials Science
Materials Science, Composites
Mechanics
PLATES
Science & Technology
Technology
Publication Status
Published
Article Number
113218
Date Publish Online
2020-10-29