Numerical simulation on flexural crack induced debonding failure in FRP strengthened concrete beams

DOI

10.2991/imst-16.2016.72How to use a DOI?

Keywords

fiber reinforced polymer (FRP), concrete, interface debonding, FEM, elastic-plastic model.

Abstract

Intermediate crack debonding failure is one of the most common failure modes in the FRP reinforced concrete structures. In order to simulate the formation of debonding failure accurately, this paper adopts an elastic-plastic damage constitutive law to model concrete and take into account the interface of three directions simultaneously, namely the normal direction and the two shear direction of the interface to establish a precise mixture of bilinear cohesive model. The model is used for finite element analysis of debonding failure during loading process in the FRP-concrete interface. Comparisons with experimental results of CFRP concrete joints, the finite element model in this paper can well simulate the damage evolution and debonding process of the FRP reinforced concrete beam in the mid span, which provides a theoretical basis for its wider applications in practical engineering.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Binyu Zheng
AU  - Jianhe Xie
AU  - Gongfa Chen
PY  - 2016/11
DA  - 2016/11
TI  - Numerical simulation on flexural crack induced debonding failure in FRP strengthened concrete beams
BT  - Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016)
PB  - Atlantis Press
SP  - 484
EP  - 490
SN  - 1951-6851
UR  - https://doi.org/10.2991/imst-16.2016.72
DO  - 10.2991/imst-16.2016.72
ID  - Zheng2016/11
ER  -