Effect of different concrete material parameters on the accuracy of FEM model of diffusion

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27120%2F19%3A10242631" target="_blank" >RIV/61989100:27120/19:10242631 - isvavai.cz</a>
Result on the web
<a href="https://aip.scitation.org/doi/abs/10.1063/1.5114117" target="_blank" >https://aip.scitation.org/doi/abs/10.1063/1.5114117</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.5114117" target="_blank" >10.1063/1.5114117</a>

Result language
angličtina
Original language name
Effect of different concrete material parameters on the accuracy of FEM model of diffusion
Original language description
The article focuses on the optimization of the numerical 2D chloride diffusion model applicable in the analysis of the initiation of corrosion on the reinforcement in the concrete. The article deals with optimizing the mesh of finite elements in terms of their size and also considers the effect of length of the time step the non-linear calculation. It takes into account the change of the diffusion coefficient over the time, i.e. the effect of aging. Results are compared with the 1D and also 2D analytical model. The work includes a study of selected concrete mixtures from classical and high performance concrete. The effect of the diffusion coefficient on the accuracy of the chloride ion concentration results is observed with respect to the topology of the mesh size and time step size. (C) 2019 Author(s).
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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