Experimental and numerical study of hooked-end steel fiber-reinforced concrete based on the meso- and macro-models

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F23%3A00570620" target="_blank" >RIV/68378297:_____/23:00570620 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.compstruct.2023.116750" target="_blank" >https://doi.org/10.1016/j.compstruct.2023.116750</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compstruct.2023.116750" target="_blank" >10.1016/j.compstruct.2023.116750</a>

Result language
angličtina
Original language name
Experimental and numerical study of hooked-end steel fiber-reinforced concrete based on the meso- and macro-models
Original language description
In this study, several three-point-bending (TPB) experiments were conducted to investigate the influence of fiber content on the fracture behavior of hooked-end steel fiber-reinforced concrete (SFRC). Subsequently, a numerical meso-model was proposed based on the application of the cohesive/volumetric finite element method, which allows the pervasive fracture along non-prescribed trajectories to be captured accurately. The bond-slip relation and traction-separation relation of the fiber–concrete interface were both considered. Consequently, the accuracy of the meso-model was validated through the experiments conducted in this study. The influence of the separation angle of the SFRC fracture interface on the bridging effect of the fibers was investigated using the proposed model. Finally, based on the conclusions obtained from the experiments and meso-model, a macro-model of SFRC was proposed to improve the computational efficiency, which was validated considering two different experimental cases.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20101 - Civil engineering

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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