Simulation of degradation of bond stress and slip relationship with corrosion induced crack

Hikaru Nakamura*, Yizhou Yang, Yoshihito Yamamoto, Taito Miura

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The bond degradation and the degradation mechanism induced by corrosion-induced crack were investigated numerically using 3D RBSM. The numerical method that considered both corrosion expansion and shear stress transfer behavior from rebar by interface elements was developed. Validation of the proposed model showed the reasonable results of the bond performance of non-corroded specimen and the bond degradation due to rebar corrosion. Moreover, the bond degradation mechanism was investigated through the crack development and stress distribution for different rebar positions. It was found that the bond degradation is related to reduction of surrounding concrete constraint of rebar due to corrosion-induced crack and the degraded bond strength can be evaluated by the surface crack width of corrosion-induced crack.

Original languageEnglish
Title of host publicationProceedings of the fib Symposium 2019
Subtitle of host publicationConcrete - Innovations in Materials, Design and Structures
EditorsWit Derkowski, Piotr Krajewski, Piotr Gwozdziewicz, Marek Pantak, Lukasz Hojdys
PublisherInternational Federation for Structural Concrete
Pages706-713
Number of pages8
ISBN (Electronic)9782940643004
Publication statusPublished - 2019
Externally publishedYes
Eventfib Symposium 2019: Concrete - Innovations in Materials, Design and Structures - Krakow, Poland
Duration: 2019 May 272019 May 29

Publication series

NameProceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures

Conference

Conferencefib Symposium 2019: Concrete - Innovations in Materials, Design and Structures
Country/TerritoryPoland
CityKrakow
Period19/5/2719/5/29

Keywords

  • 3D RBSM
  • Bond degradation mechanism
  • Bond-slip relationship
  • Corrosion-induced crack
  • Surface crack width

ASJC Scopus subject areas

  • Building and Construction
  • Architecture
  • Civil and Structural Engineering

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