Fundamental study on evaluation for time-dependent corrosion behavior of long steel members in marine environment

Shigenobu Kainuma; Naofumi Hosomi; Atsushi Goto; Yoshito Itoh

doi:10.2208/jsceja.65.440

Fundamental study on evaluation for time-dependent corrosion behavior of long steel members in marine environment

Shigenobu Kainuma, Naofumi Hosomi, Atsushi Goto, Yoshito Itoh

Civil design and materials

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

It is necessary to clarify time-dependent corrosion behavior of a steel member in marine environment in order to carry out the appropriate maintenace to corrosion damage. In this study, corroded surface of an angle specimen exposed for 19.5 years in marine enviorment were analyzed using regression tree to investigate the relationship between mean and maximum corrosion depth for corrosion regions with various characterisitics. In addition, variogram analyses were also carried out on the corroded surfaces to extract the spatial autocorrelation structures. Moreover, the corroded surfaces were numerically simulated using the autocorrelation structures. From these results, the evaluation method for the time-dependent corrosion depth of the long steel members was proposed.

Original language	English
Pages (from-to)	440-453
Number of pages	14
Journal	Doboku Gakkai Ronbunshuu A
Volume	65
Issue number	2
DOIs	https://doi.org/10.2208/jsceja.65.440
Publication status	Published - 2009

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Building and Construction
Mechanics of Materials
Mechanical Engineering

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10.2208/jsceja.65.440

Cite this

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abstract = "It is necessary to clarify time-dependent corrosion behavior of a steel member in marine environment in order to carry out the appropriate maintenace to corrosion damage. In this study, corroded surface of an angle specimen exposed for 19.5 years in marine enviorment were analyzed using regression tree to investigate the relationship between mean and maximum corrosion depth for corrosion regions with various characterisitics. In addition, variogram analyses were also carried out on the corroded surfaces to extract the spatial autocorrelation structures. Moreover, the corroded surfaces were numerically simulated using the autocorrelation structures. From these results, the evaluation method for the time-dependent corrosion depth of the long steel members was proposed.",

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AB - It is necessary to clarify time-dependent corrosion behavior of a steel member in marine environment in order to carry out the appropriate maintenace to corrosion damage. In this study, corroded surface of an angle specimen exposed for 19.5 years in marine enviorment were analyzed using regression tree to investigate the relationship between mean and maximum corrosion depth for corrosion regions with various characterisitics. In addition, variogram analyses were also carried out on the corroded surfaces to extract the spatial autocorrelation structures. Moreover, the corroded surfaces were numerically simulated using the autocorrelation structures. From these results, the evaluation method for the time-dependent corrosion depth of the long steel members was proposed.

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Fundamental study on evaluation for time-dependent corrosion behavior of long steel members in marine environment

Abstract

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