Numerical simulation of the bond behavior of mineral-impregnated carbon-fiber reinforcement

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

The bond behavior between reinforcement and concrete has a significant influence on the load-bearing behavior and serviceability of the composite material. This paper focuses on the characterization of the bond behavior between fine-grained concrete and mineral-impregnated carbon-fiber reinforcement. In this study, the influence of different bond lengths on local bond behavior was experimentally investigated. To predict the bond stress along the bond length, an analytical bond stress-slip model was specified, and its model parameters were determined based on the experimental tests using an iterative approximation approach. Based on the defined bond stress-slip model, a numerical bond model was developed and adjusted for the first time. A three-dimensional (3D) finite element analysis (FEA) allows the simulation of the local bond stress along the bond length. Finally, the results of the 3D FEA were compared with the results of the experimental investigations to validate the developed numerical model.

Details

Original languageEnglish
Number of pages19
JournalStructural concrete
Volume25
Issue number4
Publication statusPublished - 2024
Peer-reviewedYes

External IDs

Mendeley e46b1d40-07e4-39e8-b35b-4cb2792a334b
ORCID /0000-0002-1596-7164/work/159172291

Keywords

Keywords

  • bond, carbon-fiber, damage mechanics, mineral impregnation, simulation