Simulation of Crack Growth in FRP Reinforced Concrete
Publication: Journal of Bridge Engineering
Volume 12, Issue 2
Abstract
Experimental results show that the crack growth of fiber-reinforced polymer (FRP) reinforced concrete flexural elements experience a crack development stage followed by crack stabilization. The crack length and elastic crack mouth opening displacement (CMOD) increase during the crack development stage until reaching the crack stabilization stage. A finite-element representation was proposed to predict the initial CMOD. A debonded length was specified to account for the bond-slip between FRP bar and concrete. It was assumed that there was no tangential displacement between the reinforcement and concrete outside of the debonded length. A fatigue model was created using the Paris equation to simulate the growth of elastic CMOD. The model displayed good agreement with the test results. A size effect was also observed for the exponential parameter in the Paris equation.
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Acknowledgments
The research was funded by Saada Family Fellowship at Case Western Reserve Univ. The writers wish to thank Dr. Saada for the support.
References
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 12 • Issue 2 • March 2007
Pages: 237 - 245
Copyright
© 2007 ASCE.
History
Received: Jun 13, 2005
Accepted: Dec 28, 2005
Published online: Mar 1, 2007
Published in print: Mar 2007
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