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Title |
Modeling of Concrete Splitting Tensile Test Using a Surface-to-Surface Contact Model
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Authors |
이상민(Sangmin Lee) ; 석승욱(Seungwook Seok) ; 최창식(Chang-Sik Choi) |
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DOI |
https://doi.org/10.4334/JKCI.2023.35.3.327 |
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Keywords |
유한요소해석; surface-to-surface 접촉 모델; 쪼갬인장강도 finite element analysis; surface-to-surface contact model; splitting tensile strength |
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Abstract |
A numerical study was conducted to assess the suitability of a surface-to-surface contact model for modeling a concrete material test. Three splitting tensile strength tests were simulated using the commercial finite element analysis program ABAQUS, where its surface-to-surface model was applied to the interaction between the loading plate and the concrete cylinder. Initially, flat-flat and flat-circle contact tests were performed in a 3D environment to confirm the functionality of the surface-to-surface contact model. Then, a 3D finite element analysis of a splitting tensile strength test was performed using 2 mm-sized elements. However, reducing the element size led to a significant increase in analysis time. Consequently, subsequent analyses were conducted using a 0.5 mm element size with a 2D finite element model. With this approach, as the element size decreased, the numerical results closely aligned with the experimental splitting strengths, confirming the effectiveness of the proposed modeling approach.
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