Publicações

Jiang, X. e Guedes Soares, C. (2009), “Nonlinear FEM analysis of pitted mild steel square plates subjected to In-plane compression”, Journal of Ship Mechanics, Vol. 13, Issue 3, pp. 399-405

Pitting corrosion of the steel plates forming the hull and other major structural components of both commercial and naval ships can have a considerable deteriorating effect on ship structural strength and safety. In the paper, a series of nonlinear FEM analysis is carried out to investigate the effects of pits on the ultimate compressive strength of plates, where the main influential factors of both plates and pits are studied in detail. It is found that the intensity of pits denoted by DOP (the ratio percentage of the corroded surface area to the original plate surface area) has significant and direct impact on the degradation of the ultimate capacity of plates among other factors, such as, size, depth of pits, slenderness of plate, etc. Moreover, in severely corrosive environment, thicker plates (smaller slenderness) may not bring about longer durability as expected.

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