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http://dx.doi.org/10.5389/KSAE.2015.57.5.043

Development of Three Dimensional Chloride Ion Penetration Model Based on Finite Element Method  

Choi, Won (Department of Landscape Architecture and Rural Systems Engineering, Seoul National University)
Kim, Hanjoong (Hankyong National University)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.57, no.5, 2015 , pp. 43-49 More about this Journal
Abstract
Most of agricultural structures located in seashore could not avoid rapid deterioration of concrete because chloride-ion and $CO_2$ gradually penetrate into concrete. However, since most of models can be able to describe the phenomenon of penetration by using one or two dimensional models based on finite difference method (FDM), those modes can not simulate the real geometry and it takes a lot of computational time to complete even the calculation. To overcome those weaknesses, three dimensional numerical model considering time dependent variables such as surface concentration of chloride and diffusion coefficient of domain based on finite element method (FEM) was suggested. This model also included the neutralization occurred by the penetration of $CO_2$. Because the model used various sizes of tetrahedral mesh instead of equivalent rectangular mesh, it reduced the computational time to compare with FDM. As this model is based on FEM, it will be easily extended to execute multi-physics simulation including water evaporation and temperature change of concrete.
Keywords
concrete; chloride; finite element method; three dimensional analysis; multiphysics;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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