Modeling of time-varying stress in concrete under axial loading and sulfate attack

Guang-Ji Yin; Xiao-Bao Zuo; Yu-Juan Tang; Olawale Ayinde; Dong-Nan Ding

추천

검색

자료유형: 학술저널

저자정보: Guang-Ji Yin (Nanjing University of Science & Technology) Xiao-Bao Zuo (Nanjing University of Science & Technology) Yu-Juan Tang (Nanjing University of Science & Technology) Olawale Ayinde (Nanjing University of Science & Technology) Dong-Nan Ding (Nanjing University of Science & Technology)

저널정보: 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.19 No.2

발행연도: 2017.1

수록면: 143 - 152 (10page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

This paper has numerically investigated the changes of loading-induced stress in concrete with the corrosion time in the sulfate-containing environment. Firstly, based on Fick’s law and reaction kinetics, a diffusion-reaction equation of sulfate ion in concrete is proposed, and it is numerically solved to obtain the spatial and temporal distribution of sulfate ion concentration in concrete by the finite difference method. Secondly, by fitting the existed experimental data of concrete in sodium sulfate solutions, the chemical damage of concrete associated with sulfate ion concentration and corrosion time is quantitatively presented. Thirdly, depending on the plastic-damage mechanics, while considering the influence of sulfate attack on concrete properties, a simplified chemo-mechanical damage model, with stress-based plasticity and strain-driven damage, for concrete under axial loading and sulfate attack is determined by introducing the chemical damage degree. Finally, an axially compressed concrete prism immersed into the sodium sulfate solution is regarded as an object to investigate the time-varying stress in concrete subjected to the couplings of axial loading and sulfate attack.

참고문헌 (44)

참고문헌 신청

Bassuoni, M. T. / 2009 / Durability of self-consolidating concrete to sulfate attack under combined cyclic environments and flexural loading / Cement Concrete Res. 39(3):206~226

Cao, S. / 1991 / Mechanical properties of corroded concrete / J. Southeast Univ. 21(4):89~95

Etse, G. / 1999 / Failure analysis of elastoviscoplastic material models / J. Eng. Mech. 125(1):60~69

Faria, R. / 1998 / A strain-based plastic viscous-damage model for massive concrete structures / J. Solids Struct. 35(14):1533~1558

Gao, J. / 2013 / Durability of concrete exposed to sulfate attack under flexural loading and drying-wetting cycles / Constr. Build. Mater. 39:33~38

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!