Implementation of in situ corrosion measurements in structural analysis
Implementation of in situ corrosion measurements in structural analysis
It has been well recognised that stress and strain may have significant influences on corrosion. Increasing effort has been made into understanding this so called mechano-electrochemical phenomenon through theoretical, experimental and numerical studies. However, current practice of marine structural analysis often adopts empirically based corrosion models. The majority of these models are derived from historical data and do not explicitly reflect the influence of the actual service conditions such as the mechanical loading. As a result, it is difficult to incorporate realistic corrosion features, often localised and non-uniform, in structural models. This study implemented in situ corrosion experiments into structural strength assessment to incorporate the corrosion-stress interactions over time. This enables the model to capture the dynamic change in thickness reduction spatially and temporally. Bench-shaped features are obtained, closely resembling the corrosion patterns observed in reality. A failure mode change is observed compared to models with uniform thickness reduction.
Wang, Yikun
2729f2f1-36d7-4daa-8589-b61fcc99a313
Ilman, Eko Charnius
b0bf0c91-81e4-4314-9de0-f1efe5a92c9d
Sohan Roy, Niya
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Sobey, Adam
e850606f-aa79-4c99-8682-2cfffda3cd28
Wharton, Julian
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Shenoi, Ramanand
a37b4e0a-06f1-425f-966d-71e6fa299960
May 2019
Wang, Yikun
2729f2f1-36d7-4daa-8589-b61fcc99a313
Ilman, Eko Charnius
b0bf0c91-81e4-4314-9de0-f1efe5a92c9d
Sohan Roy, Niya
9f0798e5-973b-4da7-a241-459d2ae75d4c
Sobey, Adam
e850606f-aa79-4c99-8682-2cfffda3cd28
Wharton, Julian
965a38fd-d2bc-4a19-a08c-2d4e036aa96b
Shenoi, Ramanand
a37b4e0a-06f1-425f-966d-71e6fa299960
Wang, Yikun, Ilman, Eko Charnius, Sohan Roy, Niya, Sobey, Adam, Wharton, Julian and Shenoi, Ramanand
(2019)
Implementation of in situ corrosion measurements in structural analysis.
Guedes Soares, Carlos and Parunov, Joško
(eds.)
In Trends in the Analysis and Design of Marine Structures: Proceedings of the 7th International Conference on Marine Structures (MARSTRUCT 2019, Dubrovnik, Croatia, 6-8 May 2019).
CRC Press.
10 pp
.
(doi:10.1201/9780429298875-48).
Record type:
Conference or Workshop Item
(Paper)
Abstract
It has been well recognised that stress and strain may have significant influences on corrosion. Increasing effort has been made into understanding this so called mechano-electrochemical phenomenon through theoretical, experimental and numerical studies. However, current practice of marine structural analysis often adopts empirically based corrosion models. The majority of these models are derived from historical data and do not explicitly reflect the influence of the actual service conditions such as the mechanical loading. As a result, it is difficult to incorporate realistic corrosion features, often localised and non-uniform, in structural models. This study implemented in situ corrosion experiments into structural strength assessment to incorporate the corrosion-stress interactions over time. This enables the model to capture the dynamic change in thickness reduction spatially and temporally. Bench-shaped features are obtained, closely resembling the corrosion patterns observed in reality. A failure mode change is observed compared to models with uniform thickness reduction.
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More information
Accepted/In Press date: 30 January 2019
Published date: May 2019
Venue - Dates:
7th International Conference on Marine Structures, , Dubrovnik, Croatia, 2019-05-06 - 2019-05-08
Identifiers
Local EPrints ID: 427789
URI: http://eprints.soton.ac.uk/id/eprint/427789
PURE UUID: 12d4491d-3259-46c6-a3c3-9b9a19917c2b
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Date deposited: 29 Jan 2019 17:30
Last modified: 16 Mar 2024 04:16
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Contributors
Author:
Yikun Wang
Author:
Niya Sohan Roy
Editor:
Carlos Guedes Soares
Editor:
Joško Parunov
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