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|Title:||Analysis of FRP-to-concrete interfaces using a displacement driven partial interaction model|
|Citation:||International Journal of Mechanical Sciences, 2016; 117:210-217|
|Huawen Zhang, Scott T. Smith, Rebecca J. Gravina|
|Abstract:||Fibre-reinforced polymer (FRP)-to-concrete bonded interfaces are susceptible to bond failure in the concrete at the interface. This paper presents the details of a partial interaction model that is capable of analysing such bond failure in FRP-to-concrete joints. The model is driven by displacing the slip between the FRP and concrete at the loaded end of the joint and is thus able to capture unloading of the bonded interface. Such unloading is due to a reduction in the available length of the bonded plate on account of progressive plate debonding. A bond stress versus slip model is calibrated from test results and incorporated into the partial interaction model. Predictions of strain, bond stress and slip along the length of the bonded plate are produced and the results are found to correlate with test measurements. Finally, parametric studies on a typical joint enable insights to be gained on the parameters used to define the bond-slip model.|
|Keywords:||Concrete; constitutive laws; debonding FRP partial interaction model|
|Rights:||© 2016 Elsevier Ltd. All rights reserved.|
|Appears in Collections:||Civil and Environmental Engineering publications|
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