Problem of Delamination in RC Beams Strengthened by FRP with Rheological Model of Adhesive Leyer
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University of Zielona Gora, Zielona Góra, Poland
Online publication date: 2017-02-07
Publication date: 2016-12-01
Civil and Environmental Engineering Reports 2016;23(4):103-110
This paper deals with one of the most dangerous failure modes in layered structures, namely delamination. The strengthening layer is modelled by a solid-shell finite element. The mechanical modelling of delamination onset and propagation is based upon a cohesive zone model implemented into a cohesive element located between adhesive layer and a concrete structure. The long time behavior of epoxy adhesive layer is modelled with the five-parameter rheological model. The numerical simulations are accomplished within the commercial software package Abaqus by the implementation of a user-written finite element and user-written material.
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