- Title
- Statistical analysis of the surfaces of corroded mild steel plates
- Creator
- Melchers, R. E.; Ahammed, M.; Jeffrey, R.; Simundic, G.
- Relation
- 11th International Conference on Applications of Statistics and Probability in Civil Engineering. Proceedings of the 11th International Conference on Applications of Statistics and Probability in Civil Engineering (Zurich, Switzerland 1-4 August, 2011) p. 2328-2334
- Relation
- http://www.ibk.ethz.ch/emeritus/fa/icasp11
- Publisher
- CRC Press
- Resource Type
- conference paper
- Date
- 2011
- Description
- Assessment of the longer-term structural safety and integrity of infrastructure exposed to marine environments requires prediction of the corrosion, including loss of thickness, maximum pit depth and their spatial variation. Whether spatial variation is dependent on plate size is considered using experimental observations for mild steel plates 1.2 m x 0.6 m exposed for up to 2.5 years in immersion, tidal and splash zone conditions in temperate climate and seawater conditions. The plates were scanned and the results analyzed numerically to estimate the correlation structure of the surface topography. For any one segment the surface topography was found to be highly statistically dependent, implying that smaller coupon sizes can provide adequate estimates of corrosion loss. From this it may be inferred that the deepest pits are not statistically independent as commonly assumed in extreme value statistical representations.
- Subject
- corrosion; statistical analysis; marine environments
- Identifier
- http://hdl.handle.net/1959.13/1055942
- Identifier
- uon:15959
- Identifier
- ISBN:9780415669863
- Language
- eng
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