Numerical Simulation for Stress Field Due to Corrosion of Rebar in Concrete Structure

Abstract:

Due to the volume expansion of corroded rebar products, the cracking of the concrete cover would occur, and has a serious impact on the durability of the concrete structure. In this paper, a numerical model was established for the simulation of the corrosion of rebar in concrete structures with the aid of finite element analysis software. The distribution of stress in concrete around rebar, that due to the expansion of these corroded rebar products, was obtained. The theory of elasticity method is used to validate the distribution of stress in concrete around rebar. The location of cracks would be predicted by the distribution of stress in concrete around the rebar.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 137-141
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.137
• Online since: May 2011
• Authors: Zhen Xiao, Jin Wu
• Keywords: Crack, Numerical Simulation, Rebar Corrosion, Stress

References

[1] E.J. Hansen and V.E. Saouma: submitted to ACI Materials Journal (1999)

[2] F.J. Molina, C.Alonso and C.Andrade: submitted to Materials and Structures (1993)

[3] Walter H.Gerstle and Member: submitted to ASCE (1992)

[4] H.J. Dagher and S.Kulendran: submitted to ACI Structural (1992)

[5] Wu Jin and Wu Shengxing: submitted to Concrete (2002)

[6] Yuan Yingshu, Ji Yongsheng and Mou Yanjun: submitted to China Civil Engineering Journal (2007)

[7] Jin Weiliang, Zhao Yuxi and Yan Fei: submitted to Journal of Hydraulic Engineering (2001)

[8] Xu Zhilun, in: A Concise Course in Elasticity (Higher Education Press, China 2002)