Deformation Behavior of Corroded Steel Bar Based on Viscoelastic Theory

Abstract:

This paper shows the corrosion of steel bar from a new perspective with viscoelasticity theory. The strain of steel bar is decomposed as initial elastic strain and creep strain, and the creep strain is caused by corrosion. In order to analysis creep strain, corrosion factor and corrosion strain function were introduced to reflect the deformation behavior. Then integral constitutive relation of corroded bar was deduced according to the above assumption. As a special case of this approach, the corrosion factor of steel bar in atmospheric environment is introduced. The results indicate that the corrosion factor increase with diameter deducing, and the deformation of the steel bar possess the acceleration creep behavior during the corrosion process.

• Periodical: Applied Mechanics and Materials (Volumes 578-579)
• Pages: 1595-1600
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.578-579.1595
• Online since: July 2014
• Authors: Wei Hong Guo, Tong Ning Wang, Guo Bin Tang
• Keywords: Corrosion, Deformation, Steel Bar, Viscoelasticity

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