[2012] Effect of corrosion on the ultimate strength of double hull oil tankers - Part I: stiffened panels > Selected Papers

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Selected Papers

[2012] Effect of corrosion on the ultimate strength of double hull oil…

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Author Admin 작성일12-11-04 14:02 Hit66,197 Count Comments0 Count

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Structural Engineering and Mechanics, Vol.42, No.4, pp.507-530, 2012.

Effect of corrosion on the ultimate strength of double hull oil tankers - Part I: stiffened panels

Author(s): Do Kyun Kim, Dae Kyeom Park, Jeong Hwan Kim, Sang Jin Kim, Bong Ju Kim*, Jung Kwan Seo and Jeom Kee Paik

Abstract:

Age-related problems especially corrosion and fatigue are normally suffered by weatherworn
ships and aging offshore structures. The effect of corrosion is one of the important factors in the Common
Structural Rule (CSR) guideline of the ship design based on a 20 or 25 years design life. The aim of this
research is the clarification of the corrosion effect on ultimate strength of stiffened panels on various types
of double hull oil tankers. In the case of ships, corrosion is a phenomenon caused by the ambient
environment and it has different characteristics depending on the parts involved. Extensive research
considering these characteristic have already done by previous researchers. Based on this data, the
ultimate strength behavior of stiffened panels for four double hull oil tankers such as VLCC, Suezmax,
Aframax, and Panamax classes are compared and analyzed. By considering hogging and sagging bending
moments, the stiffened panels of the deck, inner bottom and outer bottom located far away from neutral
axis of ship are assessed. The results of this paper will be useful in evaluating the ultimate strength of an
oil tanker subjected to corrosion. These results will be an informative example to check the effect of
ultimate strength of a stiffened panel according to corrosion addition from CSR for a given type of ship.

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