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Publicações
Teixeira, A.P. e Guedes Soares, C. (2007), “Simulation of Inspections on Ship Plates with Random Corrosion Patterns”, Proceeding of the 10th International Symposium on Practical Design of Ships and Other Floating Structures (PRADS´07), Houston, Texas, United States of America
This paper investigates how the number of thickness measurements and the location of each measurement influence, both the correct representation of the level of corrosion, and indirectly the correct assessment of the collapse strength of the corroded plates. For this propose, the corrosion patterns are represented by random fields, as recently suggested by Teixeira and Guedes Soares, (2006b), which are then discretized using the Expansion Optimal Linear Estimation method proposed by Li and Der Kiureghian, (1993). This approach is used to simulate the present practice on thickness measurement patterns and to identify what would be the effect of other strategies of measurement patterns for representing the corrosion in terms of prediction of the average reduction of plate thickness. Finally, the collapse strength of the plates with non-uniform corrosion is calculated by nonlinear finite element analysis and its correlation with the average reduction of plate thickness obtained from the different measurement patterns is assessed.
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