How to model the 3D FRP-to-concrete bond behaviour in 2D

Feng Chen An, Jian Fei Chen*, Yi Tao, Xin Yan Guo, Pankaj Pankaj

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract / Description of output

The FRP-to-concrete interface plays a crucial role in the performance of concrete structures strengthened with externally bonding with FRP, attracting a large number of numerical studies on the topic. However, many existing meso-scale 2D FE models of FRP-to-concrete bond behaviour are probably over-simplified, leading to potentially inaccurate conclusions because the actual FRP bonding system is three dimensional as the FRP plate usually has different width from the concrete substrate and their material properties are different. Although an actual 3D model is required to capture this 3D behaviour, it is often impractical because of the highly computational cost, especially when a large specimen is modelled. A novel modelling strategy is proposed in this study for simulating the FRP-to-concrete bond behaviour using an improved 2D model, which retains the advantage of computational efficiency of 2D model but improves the accuracy compared with previous studies.

Conference

ConferenceJoint Conference of the 12th International Symposium on Fiber Reinforced Polymers for Reinforced Concrete Structures, FRPRCS 2015 and the 5th Asia-Pacific Conference on Fiber Reinforced Polymers in Structures, APFIS 2015
Country/TerritoryChina
CityNanjing
Period14/12/1516/12/15

Keywords / Materials (for Non-textual outputs)

  • 2D modelling
  • 3D behaviour
  • Finite element
  • FRP-to-concrete interface
  • Mesoscale model

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