Modelling steel-concrete interaction using the extended finite element method

Authors

  • Rodrigo Gutiérrez Institute of Reinforced Concrete Structures and Building Materials, Karlsruhe Institute of Technology, Germany
  • Lothar Stempniewsk Institute of Reinforced Concrete Structures and Building Materials, Karlsruhe Institute of Technology, Germany https://orcid.org/0000-0002-7789-0027
  • Wagner Fleming Departamento de Ingeniería Civil, Universidad Católica del Norte, Chile https://orcid.org/0000-0002-6772-7971

DOI:

https://doi.org/10.4067/s0718-28132018000200006

Keywords:

reinforcement, finite element method, bond laws, bond elements, X-FEM, pull-out test

Abstract

The extended finite element method (X-FEM) is used as an alternative for the modelling of the bond behaviour  between reinforcement and the surrounding concrete in reinforced concrete structures, through either reinforcing bars, fibres or others. The interface of composite materials introduces a discontinuity and, therefore, can be  umerically modelled using X-FEM.This method is capable to model discontinuities without modifying the discretization by the addition of new degrees of freedom to the standard finite element approximation. Bond elements (or cohesive elements) are presented in order to be compared with the proposed alternative. The results obtained are also compared to reference solutions, showing a good agreement.

Author Biographies

  • Rodrigo Gutiérrez, Institute of Reinforced Concrete Structures and Building Materials, Karlsruhe Institute of Technology, Germany

    Institute of Reinforced Concrete Structures and Building Materials, Karlsruhe Institute of Technology, Kaiserstrasse 12, 76128 Karlsruhe, Germany, rodrigo.gutierrez@partner.kit.edu.

  • Lothar Stempniewsk, Institute of Reinforced Concrete Structures and Building Materials, Karlsruhe Institute of Technology, Germany

    Institute of Reinforced Concrete Structures and Building Materials, Karlsruhe Institute of Technology, Kaiserstrasse 12, 76128 Karlsruhe, Germany, lothar.stempniewski@kit.edu.

  • Wagner Fleming, Departamento de Ingeniería Civil, Universidad Católica del Norte, Chile

    Departamento de Ingeniería Civil, Universidad Católica del Norte, Av. Angamos 0610, Antofagasta, Chile, wfleming@ucn.cl.

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Published

2018-12-01 — Updated on 2018-12-01

Issue

No. 24 (2018)

Section

Articles

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Copyright (c) 2018 Obras y Proyectos

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How to Cite

Modelling steel-concrete interaction using the extended finite element method. (2018). Obras Y Proyectos, 24, 6-12. https://doi.org/10.4067/s0718-28132018000200006