Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/43683
Title: Behavior and modeling of CFRP-strengthened rectangular steel tubes subjected to a transverse end bearing load
Authors: Fernando, D
Yu, T
Teng, JG 
Keywords: CFRP
End bearing load
Experiments
Finite element analysis
Steel tube
Strengthening
Web buckling
Issue Date: 2015
Publisher: World Scientific
Source: International journal of structural stability and dynamics, 2015, v. 15, no. 8, 1540031 How to cite?
Journal: International journal of structural stability and dynamics 
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.
URI: http://hdl.handle.net/10397/43683
ISSN: 0219-4554 (print)
1793-6764 (online)
DOI: 10.1142/S0219455415400313
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