Behavior and Modeling of CFRP-Strengthened Rectangular Steel Tubes Subjected to a Transverse End Bearing Load

Fernando, Dilum, Yu, Tao and Teng, J.G. (2015) Behavior and Modeling of CFRP-Strengthened Rectangular Steel Tubes Subjected to a Transverse End Bearing Load. International Journal of Structural Stability and Dynamics, 15 8: . doi:10.1142/S0219455415400313


Author Fernando, Dilum
Yu, Tao
Teng, J.G.
Title Behavior and Modeling of CFRP-Strengthened Rectangular Steel Tubes Subjected to a Transverse End Bearing Load
Journal name International Journal of Structural Stability and Dynamics   Check publisher's open access policy
ISSN 0219-4554
1793-6764
Publication date 2015-05-11
Year available 2015
Sub-type Article (original research)
DOI 10.1142/S0219455415400313
Open Access Status DOI
Volume 15
Issue 8
Total pages 24
Place of publication Singapore, Singapore
Publisher World Scientific Publishing
Language eng
Formatted abstract
The end bearing capacity of a rectangular hollow section (RHS) steel tube can be substantially increased through local strengthening using bonded carbon fiber reinforced polymer (CFRP) plates. This paper presents a combined experimental and numerical study into the behavior of such CFRP-strengthened RHS steel tubes with particular attention to debonding failure in such tubes. The results of an experimental study are first presented, which showed that debonding failure occurred in all the CFRP-strengthened steel tubes and the effectiveness of strengthening depended significantly on the slenderness of the webs. A finite element approach for modeling the behavior of such CFRP-strengthened steel tubes is next presented, in which a coupled cohesive zone model is employed to depict the response of FRP-to-steel bonded interfaces with a linear or a nonlinear adhesive. The finite element approach, which is shown to provide close predictions for CFRP-strengthened RHS steel tubes under an end bearing load, offers a valuable tool for understanding the behavior of these CFRP-strengthened steel tubes.
Keyword Steel tubes
End bearing load
CFRP
Strengthening
Web buckling
Experiments
Finite element analysis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2016 Collection
 
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Created: Fri, 11 Sep 2015, 07:45:51 EST by Dilum Fernando on behalf of School of Civil Engineering