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 journalArticlepeer-review

14 Citations (Scopus)
11 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 languageEnglish
Article number42
Pages (from-to)1-9
Number of pages9
JournalFibers
Volume8
Issue number6
Early online date24 Jun 2020
DOIs
Publication statusPublished - Jun 2020

Keywords

  • ALE
  • CZM
  • Debonding
  • FRP
  • Moving mesh

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