A moving interface finite element formulation to predict dynamic edge debonding in FRP-strengthened concrete beams in service conditions

Marco Francesco Funari; Saverio Spadea; Francesco Fabbrocino; Raimondo Luciano

doi:10.3390/FIB8060042

A moving interface finite element formulation to predict dynamic edge debonding in FRP-strengthened concrete beams in service conditions

Marco Francesco Funari (Lead / Corresponding author), Saverio Spadea, Francesco Fabbrocino, Raimondo Luciano

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

80 Downloads (Pure)

Abstract

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.

Original language	English
Article number	42
Pages (from-to)	1-9
Number of pages	9
Journal	Fibers
Volume	8
Issue number	6
Early online date	24 Jun 2020
DOIs	https://doi.org/10.3390/FIB8060042
Publication status	Published - Jun 2020

Keywords

ALE
CZM
Debonding
FRP
Moving mesh

ASJC Scopus subject areas

Ceramics and Composites
Civil and Structural Engineering
Biomaterials
Mechanics of Materials

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10.3390/FIB8060042Licence: CC BY

Final Published VersionFinal published version, 2.54 MBLicence: CC BY

Cite this

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title = "A moving interface finite element formulation to predict dynamic edge debonding in FRP-strengthened concrete beams in service conditions",

abstract = "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.",

keywords = "ALE, CZM, Debonding, FRP, Moving mesh",

author = "Funari, {Marco Francesco} and Saverio Spadea and Francesco Fabbrocino and Raimondo Luciano",

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AU - Funari, Marco Francesco

AU - Spadea, Saverio

AU - Fabbrocino, Francesco

AU - Luciano, Raimondo

N1 - no external funding

PY - 2020/6

Y1 - 2020/6

N2 - 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.

AB - 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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A moving interface finite element formulation to predict dynamic edge debonding in FRP-strengthened concrete beams in service conditions

Abstract

Keywords

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