Numerical Analysis of Stress Distribution in Concrete Around Corroding Rebar

Corrosion product formation, in particular swelling, affects the stress distribution around the corroded rebar in reinforced structures. The area around the rebar is dominated by tensile stress, which is the cause of crack formation in the concrete cover. The paper presents mathematical and numerical models to describe the mechanical effects of corrosion product formation. Two types of corrosion uniform and pitting are considered and some examples are presented, which confirm the usability of the presented models.