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.
ABAQUS Analysis User’s Manual, 2010.
Choi, K.-K., Taha, M.M.R.: Rheological modeling and finite element simulation of epoxy adhesive creep in FRP-strengthened RC beams, Journal of Adhesion Science and Technology, 27 (2013), 1-13.
Hashin, Z.: Failure criteria for unidirectional composites, Journal for Applied Mechanics, 47(1980), 329–334.
Jankowiak, I.: Analysis of RC beams strengthenedby CFRP strips-Experimental and FEA study, Archives of Civil and Mech. Engng, 12 (2012), 376-388.
Kotynia, R.: Bond between FRP and concrete in reinforced concrete beams strengthened with near surface mounted and externally bonded reinforcement, Construction and Building Materials, 32(2012), 41-54.
Kula, K., Schlebusch, R., Kuczma, M.: and Zastrau, B., On the delamination problem in fiber reinforced, Advances in the mechanics of inhomogeneous media, ed. by Cz. Woźniak, M. Kuczma, R. Świtka, K. Wilmański.-Zielona Góra 2010, 311—321.
Mazzoti, C., Savoia, M. and Ferracuti, B:, An experimental study on delamination of FRP plates bonded to concrete, Construction and Building Materials, 22(2008), 1409-1421.
Schlebusch R.: Theorie und Numerik einer oberflaechenorientierten Schalen-formulierung (PhD thesis), Technische Universitaet Dresden, Dresden, 2005.
Socha T.: Ocena wpływu obciążeń długotrwałych na naprężenia i odkształcenia w drewnianych belkach z wklejonym zbrojeniem kompozytowym, Maszynopis rozprawy doktorskiej, Uniwersytet Zielonogórski 2005.
Turon, A.: Camanho, P. P., Costa, J. and Davila, C.G.: An interface damage model for the simulation of delamination under variablemode ratio in composite materials, NASA/TM-2004-213277, 2004.
Yao, J. and Teng, J.G., Plate end debonding in FRP-plated RC beams-I: Experiments, Engineering Structures, 29, pp. 2457-2471, 2007.