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FE modelling of bond interaction of FRP bars to concrete

Achillides, Z. and Pilakoutas, K. (2006) FE modelling of bond interaction of FRP bars to concrete. Structural Concrete, 7 (1). pp. 7-16. ISSN 1464-4177

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Abstract

In this paper a computational modelling approach is used to investigate the bond behaviour of fibre-reinforced plastic (FRP) bars in concrete. Two finite element packages (ANSYS and ABAQUS) are used to model the bond interaction of FRP reinforcing bars in cubes and beams. The main purpose of this work is to develop additional understanding of how FRP bars ‘cooperate’ with concrete to sustain the pullout load. Two modelling approaches are presented. In the first approach, a spring describing the behaviour of short embedment lengths in pullout tests was used for predicting the behaviour of longer embedment lengths. In the second approach, spring characteristics obtained from an experimentally determined bond stress against anchorage length envelope are used in FE modelling of beams. Both approaches showed good agreement between analytical and experimental results. However, further development on the analytical modelling of the bond interaction is required, in order to consider the effect of all parameters that influence bond.

Item Type: Article
Copyright, Publisher and Additional Information: © 2006 Thomas Telford. This is an author produced version of a paper subsequently published in Structural Concrete.
Institution: The University of Sheffield
Academic Units: The University of Sheffield > University of Sheffield Research Centres and Institutes > Centre for Cement and Concrete (Sheffield)
The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield)
Depositing User: Prof Kypros Pilakoutas
Date Deposited: 14 Feb 2011 16:25
Last Modified: 08 Feb 2013 17:30
Published Version: http://dx.doi.org/10.1680/stco.2006.7.1.7
Status: Published
Publisher: Thomas Telford
Refereed: Yes
Identification Number: 10.1680/stco.2006.7.1.7
URI: http://eprints.whiterose.ac.uk/id/eprint/42819

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