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- Title
A numerical study on predicting bond-slip relationship of reinforced concrete using surface based cohesive behavior.
- Authors
Prince, Minhajul Bari; Sen, Debasish
- Abstract
This article discusses a numerical study on predicting the bond-slip relationship of reinforced concrete using surface-based cohesive behavior. The study aims to develop a finite element modeling strategy to accurately predict the bond-slip behavior in reinforced concrete. The article provides a comprehensive review of previous research on bond-slip behavior and includes a table of maximum bond stress equations from different literature sources. The document discusses the testing procedure and finite element modeling strategy for studying the bond behavior between concrete and reinforcement in pullout tests. The document also explains the loading and boundary conditions applied in the finite element model and the interaction between reinforcement and concrete. The text discusses the different contact models available in ABAQUS for simulating contact between surfaces. It concludes by discussing the finite element mesh size and solution procedure used in the study. The text discusses the results of finite element analysis (FEM) conducted on reference specimens to predict their failure modes and bond stress-slip behavior. The analysis used different mesh sizes and analytical models to simulate the behavior of the specimens. The results showed that a finer mesh size of 10 mm provided more accurate predictions of failure patterns, while a mesh size of 10 mm or larger could be used to estimate specimen strength. The FEM developed using the analytical model by Strum and Visintin showed the most accurate prediction of maximum bond stress. The failure modes observed in the analysis included pullout failure, splitting followed by pullout failure, and splitting or splitting-pullout failure. The FEM models generally performed
- Subjects
REINFORCED concrete; COHESIVE strength (Mechanics); HIGH strength concrete; STRESS-strain curves; POISSON'S ratio; HIGH strength steel; REINFORCED concrete testing
- Publication
Fracture & Structural Integrity / Frattura ed Integrità Strutturale, 2024, Vol 18, Issue 69, p154
- ISSN
1971-8993
- Publication type
Article
- DOI
10.3221/IGF-ESIS.69.12