ABSTRACT
This chapter presents the results from the dynamic response of pitted steel plates with conical, cylindrical and spherical shape pits by Finite Element Method (FEM). It focuses on assessing the effects of localized pitting corrosion on free vibration and dynamic strength of plates subjected to blast loading. Corrosion is one of the main reasons for loss of old steel structures. Local corrosion and general corrosion are two types of corrosion which frequently occur in old structures. Using shell elements for analyzing and modeling plates under nonlinear phenomena is common practice in FEM, since this approach is fast and has quite correct response in the most cases. As FEM is widely used approaches in many engineering problems, to do a bench mark study in order to determine the accuracy and applicability of different modeling technique is necessary. Different approaches for modeling of corroded plates including, shape of pits and shell/solid finite elements are used to model corroded plates.
