Abstract:
Corrosion causes strength deterioration of aged steel infrastructures and hence careful evaluation of their remaining
load-carrying capacities are of high importance in maintenance engineering. To develop a more reliable strength
estimation technique, only experimental approach is not enough as actual corroded surfaces are different from each
other. However in modern practices, numerical simulation is being used to replace the time-consuming and expensive
experimental work and to comprehend on the lack of knowledge of mechanical behavior, stress distribution, ultimate
behavior and so on. Therefore, using of numerical analysis method will give important knowledge not only for strength
estimation but also for subsequent repair and retrofitting plan. The results of non-linear FEM analysis of many actual
corroded plates with different corrosion conditions and comparison of them with the respective tensile coupon tests
results are presented in this paper. Further, the feasibility of establishing of an analytical methodology to predict the
residual strength capacities of a corroded steel member with fewer number of measuring points are also discussed.
