Table of Contents
Journal of Structures
Volume 2013 (2013), Article ID 138617, 8 pages
http://dx.doi.org/10.1155/2013/138617
Research Article

Finite Element Modeling of Mode I Failure of the Single Contoured Cantilever CFRP-Reinforced Concrete Beam

1University of North Carolina at Charlotte, Charlotte, NC 28223, USA
2Indiana Wesleyan University, Upland, IN 46989, USA

Received 20 February 2013; Revised 13 October 2013; Accepted 12 November 2013

Academic Editor: Domenico Bruno

Copyright © 2013 T. Nicholas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The single contour cantilever beam (SCCB) test method has been developed with the intent to capture Mode I opening failures of CFRP-reinforced concrete beams. Recent development in the method explores possible shifting damage into the concrete substrate by using the International Concrete Repair Institute (ICRI) Surface Profile Level Three (SP3) as the desired CFRP bonded interface to concrete. To validate and explain the interface fracture behavior, finite element analysis using special cohesive elements has been performed. The cohesive element allows separation of the concrete substrate from the CFRP. This paper presents the simulation of laboratory test results, where failure in the substrates has been successfully reproduced. The simulation results indicate that finite element method using cohesive elements can successfully replicate Mode I critical strain energy release rate and the peak capacity of the laboratory tests and may have the potential to simulate actual applications.