ABSTRACT
Nakai et al. (2006) studied the effect of pitting corrosion on the ultimate strength of steel plates subjected to in-plane compression and bending in bulk carriers hold frames. Corrosion pits were modeled with a circular cone shape and their effect on the local strength of hold frames was studied. A series of nonlinear FE analyses has been conducted with square plates having corrosion pits. They dealt with the case where the shape of the corrosion pits is cylindrical cone; the ratio of the diameter to the depth is in the range between 8:1 and 10:1 and the average pit is 25-30 mm. They studied a 14-years-old bulk carrier, and assumed that the corrosion pits exit on the both sides of the plate.
