Bond-slip parameter estimation in fiber reinforced concrete at failure using inverse stochastic model

Kožar, Ivica; Malić, Neira Torić; Simonetti, Danijel; Smolčić, Željko

doi:10.1016/j.engfailanal.2019.05.019

Cited by 23 publications

(2 citation statements)

References 12 publications

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“…Many of the results presented here confirm the conclusions of other similar studies [15,16], but none of these studies emphasise the need for an intermediate step between the experiment and the numerical model-a detailed and in-depth analysis of the measured data. The results confirm that the residual strength values are dependent on the properties and type of fibres, and their distribution in the sample.…”

Section: Introductionsupporting

confidence: 72%

Statistical and Practical Evaluation of the Mechanical and Fracture Properties of Steel Fibre Reinforced Concrete

2022

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The sustainability of the construction industry requires new perspectives on existing techniques. For example, fibre concrete has been an integral part of the construction industry for many years and its contribution to enhancing the properties and use of concrete is undeniable, but there are still some questions that need to be answered. The present paper showed the possibilities of statistical evaluation of crack mouth displacement (CMOD) tests performed on 24 fibre concrete specimens. The aim was to point out possible pitfalls and to propose measures based on statistics. The geometrical properties of all samples were determined and correlated with the results of the CMOD test. In this paper, a procedure was considered to compare two different concretes with different fibres at CMOD level. Correlations between geometry and CMOD test results were also demonstrated.

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Section: Introductionsupporting

confidence: 72%

Statistical and Practical Evaluation of the Mechanical and Fracture Properties of Steel Fibre Reinforced Concrete

2022

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“…Inference of parameters of a viscoelastic model is tackled in Reference 39 by employing the experimental data from long‐term creep tests on salt concrete. In Reference 40, authors estimate the bond parameters in fiber‐reinforced concrete using a stochastic inverse model relying on the non‐linear least squares approach with the help of the experimental fiber pull‐out curves. Another practical application of Bayesian inference exploits the structural health monitoring data, as in Reference 41, where the in‐situ measurements on an existing concrete dam are utilized to identify the elastic properties of concrete.…”

Section: Introductionmentioning

confidence: 99%

Considerations on the identifiability of fracture and bond properties of reinforced concrete

Dobrilla

Matthies

Ibrahimbegović

2023

Numerical Meth Engineering

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This work tackles the issue of identifiability of fracture and bond properties in reinforced concrete. The basis for modeling of fracture is a computational model capable of describing damage and failure mechanisms in concrete, as well as bond‐slip which is a result of degradation of the concrete‐steel interface. The discrete approximation combines ED‐FEM for concrete crack representation in each element and X‐FEM representation of bond‐slip along a particular reinforcement bar. The uncertain model parameters are modeled as random variables and identified via Bayesian inference with the help of observations from tensile tests on concrete tie beams with a single embedded reinforcement bar. We discuss how the choice of observation type affects the parameter identifiability and propose combinations which improve the estimation capabilities and reduce the discrepancy between the computed and observed quantities of interest.

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Correlation between the mechanical properties and the fiber breaking morphology of fiber reinforced shotcrete (FRS)

Zhao

Meng

Chen

et al. 2021

Composite Structures

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Bond-slip parameter estimation in fiber reinforced concrete at failure using inverse stochastic model

Cited by 23 publications

References 12 publications

Statistical and Practical Evaluation of the Mechanical and Fracture Properties of Steel Fibre Reinforced Concrete

Statistical and Practical Evaluation of the Mechanical and Fracture Properties of Steel Fibre Reinforced Concrete

Considerations on the identifiability of fracture and bond properties of reinforced concrete

Correlation between the mechanical properties and the fiber breaking morphology of fiber reinforced shotcrete (FRS)

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