Authors: Teixeira, A.P.; Soares, C. Guedes

Source: Journal of Ship Production, Volume 24, Number 3, August 2008 , pp. 168-175(8)

Publisher: Society of Naval Architects and Marine Engineers (SNAME)

Abstract:

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 purpose, the corrosion patterns are represented by random fields, which are then discretized using the Expansion Optimal Linear Estimation method. 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 nonuniform 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.

Keywords: BUCKLING; CORROSION; MAINTENANCE

Document Type: Research article

Publication date: 2008-08-01

More about this publication?

• The Journal of Ship Production publishes original and timely technical papers addressing problems of shipyard techniques and production of merchant and naval ships appear in this quarterly publication. Since its inception, the Journal has been a forum for peer-reviewed, professionally edited papers from academic and industry sources. As such, it has influenced the worldwide development of ship production engineering as a fully qualified professional discipline. Each issue contains a well-rounded selection of technical papers relevant to ship professionals, including written discussions and author's closures.
  
  From Volume 26 onwards this journal is published as Journal of Ship Production and Design
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