A Study on the Degradation of Coating and Corrosion of Ship’s Hull Based on the Probabilistic Approach

[+] Author and Article Information
N. Yamamoto, K. Ikegami

Research Center, Nippon Kaiji Kyokai, 1-8-3 Ohnodai, Midori-ku, Chiba 267, Japan

J. Offshore Mech. Arct. Eng 120(3), 121-128 (Aug 01, 1998) (8 pages) doi:10.1115/1.2829532 History: Received October 03, 1997; Revised January 28, 1998; Online December 17, 2007


In this paper, phenomena of general corrosion are assumed to be the results of three sequential processes: degradation of paint coatings, generation of pitting point, and progress of pitting point. A consistent corrosion model is proposed which can evaluate the generation and progress of corrosion quantitatively by introducing appropriate simple probabilistic models for each process. This probabilistic corrosion model can be identified by analyzing existing data collected from plate thickness measurements. Applicability of this model is verified by comparing the estimated behavior of corrosion progress and dispersion with those from actual data.

Copyright © 1998 by The American Society of Mechanical Engineers
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