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Article
FE modeling of FRP-repaired planar concrete elements subjected to monotonic and cyclic loading
Journal of Composites for Construction
  • Nantawat Khomwan, Kasetsart University
  • Stephen J Foster, University of New South Wales
  • Scott T Smith, University of Hong Kong
Document Type
Article
Publication Date
1-1-2010
Peer Reviewed
Peer-Reviewed
Abstract

n this paper, a nonlinear finite-element model is developed for the analysis of plane stress members, such as RC beams and walls, strengthened either unidirectionally or bidirectionally with fiber-reinforced polymer (FRP) composites and subjected to either monotonic or cyclic loading. The model takes into account the effects of the bonded interface between the FRP and concrete while allowing slippage in each direction. A two-dimensional membrane contact element is developed to model the effects of local bond-slip with debonding failure between the FRP and concrete capable of being captured. The model has been incorporated into a finite-element program for the analysis of RC members subject to plane stress with verification against test data of FRP-strengthened RC joints, beams, and walls. The numerical results show good agreement with the experimental data for both load-displacement responses and for the overall failure mechanisms.

Citation Information

Khomwan, N, Foster, SJ & Smith, ST 2010, 'FE modeling of FRP-repaired planar concrete elements subjected to monotonic and cyclic loading', Journal of Composites for Construction, vol. 14, no. 6, pp. 720-729.

Published version available from:

http://dx.doi.org/10.1061/(ASCE)CC.1943-5614.0000126