Universiti Teknologi Malaysia Institutional Repository

Statistical analysis of seawater ballast tank corrosion data

Md. Noor, Norhazilan and Yahaya, Nordin (2006) Statistical analysis of seawater ballast tank corrosion data. In: 6th Asia-Pacific Structural Engineering and Construction Conference, 5-6 September 2006, Kuala Lumpur, Malaysia.


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High variability of corrosion wastage has been acknowledged as a factor that contributes to the uncertainties in corrosion assessment. Hence, statistical analysis on a collection of corrosion measurements seems to be one of the best options to express corrosion rates appropriately. This paper demonstrates an alternative approach to analysing corrosion data randomly collected from seawater ballast tank structure. A statistical time-dependent corrosion depth model is proposed in this paper to improve corrosion interpretation. The new statistical model can be used to predict the likely variation of corrosion depth at any point of time/ age of the vessel. The proposed model intends to simplify the modelling process so the available data can be fully utilised for prediction purposes.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Corrosion; assessment; statistic; ballast tank; vessel
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Civil Engineering
ID Code:586
Deposited By: Norazila Safri
Deposited On:16 Feb 2007 08:28
Last Modified:23 Aug 2017 00:19

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