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Grupo de Segurança e Logística do Transporte Marítimo > 5.2 Manutenção Estrutural Baseada na Fiabilidade > Publicações
Garbatov, Y. (2020) , “Risk-based corrosion allowance of oil tankers”, Ocean Engineering, Vol. 213, pp. 107753 (11 pages)
The work studies the ship structural corrosion degradation allowance, analysing several sets of corrosion thickness measurements collected from operating tankers. The corrosion degradation process is modelled by a time-dependent exponential function with parameters adjusted to real corrosion thickness measurement data. Corrosion margins of redundant ship structures with severe consequences of failure are derived based on two approaches, probabilistic closed-form solution and risk-based direct approach. The developed closed-form solutions for the corrosion allowance for different corrosion environments can be used in the design, avoiding a complex risk-based assessment.
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