  A lattice approach is used to describe the mechanical interaction of a
corroding reinforcement bar, the surrounding concrete and the interface between
steel reinforcement and concrete. The cross-section of the ribbed reinforcement
bar is taken to be circular, assuming that the interaction of the ribs of the
deformed reinforcement bar and the surrounding concrete can be captured by a
cap-plasticity interface model. The expansive corrosion process is represented
by an Eigenstrain in the lattice elements forming the interface between
concrete and reinforcement. Several pull-out tests with varying degree of
corrosion are analysed. The numerical results are compared with experiments
reported in the literature. The influence of the properties of concrete are
studied. The proposed lattice approach offers insight into corrosion induced
cracking and its influence on bond strength.
