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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

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

Popis výsledku anglicky

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).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

AIP Conference Proceedings. Volume 2116

ISBN

978-0-7354-1854-7

ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

4

Strana od-do

4

Název nakladatele

American Institute of Physics

Místo vydání

Melville

Místo konání akce

Rhodos

Datum konání akce

13. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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