A Moving Interface Finite Element Formulation to Predict Dynamic Edge Debonding in FRP-Strengthened Concrete Beams in Service Conditions

A new methodology to predict interfacial debonding phenomena in fibre-reinforced polymer (FRP) concrete beams in the serviceability load condition is proposed. The numerical model, formulated in a bi-dimensional context, incorporates moving mesh modelling of cohesive interfaces in order to simulate...

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Main Authors: Marco Francesco Funari, Saverio Spadea, Francesco Fabbrocino, Raimondo Luciano
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Fibers
Subjects:
Online Access:https://www.mdpi.com/2079-6439/8/6/42
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author Marco Francesco Funari
Saverio Spadea
Francesco Fabbrocino
Raimondo Luciano
author_facet Marco Francesco Funari
Saverio Spadea
Francesco Fabbrocino
Raimondo Luciano
author_sort Marco Francesco Funari
collection DOAJ
description A new methodology to predict interfacial debonding phenomena in fibre-reinforced polymer (FRP) concrete beams in the serviceability load condition is proposed. The numerical model, formulated in a bi-dimensional context, incorporates moving mesh modelling of cohesive interfaces in order to simulate crack initiation and propagation between concrete and FRP strengthening. Interface elements are used to predict debonding mechanisms. The concrete beams, as well as the FRP strengthening, follow a one-dimensional model based on Timoshenko beam kinematics theory, whereas the adhesive layer is simulated by using a 2D plane stress formulation. The implementation, which is developed in the framework of a finite element (FE) formulation, as well as the solution scheme and a numerical case study are presented.
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spelling doaj.art-6e933337bc3b458d82ba14faf1cbaff02023-11-20T04:51:34ZengMDPI AGFibers2079-64392020-06-01864210.3390/fib8060042A Moving Interface Finite Element Formulation to Predict Dynamic Edge Debonding in FRP-Strengthened Concrete Beams in Service ConditionsMarco Francesco Funari0Saverio Spadea1Francesco Fabbrocino2Raimondo Luciano3Department of Civil Engineering, University of Calabria, 87036 Rende (CS), ItalySchool of Science and Engineering, University of Dundee, Dundee DD1 4HN, UKDepartment of Civil Engineering, Pegaso University, 80132 Napoli, ItalyDepartment of Engineering, University of Naples Parthenope, 80132 Napoli, ItalyA new methodology to predict interfacial debonding phenomena in fibre-reinforced polymer (FRP) concrete beams in the serviceability load condition is proposed. The numerical model, formulated in a bi-dimensional context, incorporates moving mesh modelling of cohesive interfaces in order to simulate crack initiation and propagation between concrete and FRP strengthening. Interface elements are used to predict debonding mechanisms. The concrete beams, as well as the FRP strengthening, follow a one-dimensional model based on Timoshenko beam kinematics theory, whereas the adhesive layer is simulated by using a 2D plane stress formulation. The implementation, which is developed in the framework of a finite element (FE) formulation, as well as the solution scheme and a numerical case study are presented.https://www.mdpi.com/2079-6439/8/6/42FRPALECZMmoving meshdebonding
spellingShingle Marco Francesco Funari
Saverio Spadea
Francesco Fabbrocino
Raimondo Luciano
A Moving Interface Finite Element Formulation to Predict Dynamic Edge Debonding in FRP-Strengthened Concrete Beams in Service Conditions
Fibers
FRP
ALE
CZM
moving mesh
debonding
title A Moving Interface Finite Element Formulation to Predict Dynamic Edge Debonding in FRP-Strengthened Concrete Beams in Service Conditions
title_full A Moving Interface Finite Element Formulation to Predict Dynamic Edge Debonding in FRP-Strengthened Concrete Beams in Service Conditions
title_fullStr A Moving Interface Finite Element Formulation to Predict Dynamic Edge Debonding in FRP-Strengthened Concrete Beams in Service Conditions
title_full_unstemmed A Moving Interface Finite Element Formulation to Predict Dynamic Edge Debonding in FRP-Strengthened Concrete Beams in Service Conditions
title_short A Moving Interface Finite Element Formulation to Predict Dynamic Edge Debonding in FRP-Strengthened Concrete Beams in Service Conditions
title_sort moving interface finite element formulation to predict dynamic edge debonding in frp strengthened concrete beams in service conditions
topic FRP
ALE
CZM
moving mesh
debonding
url https://www.mdpi.com/2079-6439/8/6/42
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