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A hybrid corrosion-structural model for simulating realistic corrosion topography of maritime structures
https://orcid.org/0000-0002-9011-7733
Abstract A multiscale multiphysics model has been developed coupling nonlinear structural behaviour and the corrosion kinetics. This study develops a hybrid mechano-electrochemical corrosion model using finite element method to evaluate long-term topography evolution on carbon steel stiffened plates for marine applications. A parametric study is performed on a stiffened plate (1.5 m 0.95 m) with different localised corrosion locations (0.75 m 0.045 m) at different load levels. Stress-based anodic and cathodic surfaces are defined using a level-set function to solve the transport equation, facilitated by the moving boundary technique. Key model insights show broad-pitted corrosion features with benching, closely resembling those found in actual ship inspections and/or surveys.
Highlights New approach for realistic corrosion topography simulations for marine structures. Numerically coupling solid mechanics and electrochemistry. Quantify interactions between stress concentrations and corrosion. Insights gained in predicted failure modes of stiffened plates.
A hybrid corrosion-structural model for simulating realistic corrosion topography of maritime structures
https://orcid.org/0000-0002-9011-7733
Abstract A multiscale multiphysics model has been developed coupling nonlinear structural behaviour and the corrosion kinetics. This study develops a hybrid mechano-electrochemical corrosion model using finite element method to evaluate long-term topography evolution on carbon steel stiffened plates for marine applications. A parametric study is performed on a stiffened plate (1.5 m 0.95 m) with different localised corrosion locations (0.75 m 0.045 m) at different load levels. Stress-based anodic and cathodic surfaces are defined using a level-set function to solve the transport equation, facilitated by the moving boundary technique. Key model insights show broad-pitted corrosion features with benching, closely resembling those found in actual ship inspections and/or surveys.
Highlights New approach for realistic corrosion topography simulations for marine structures. Numerically coupling solid mechanics and electrochemistry. Quantify interactions between stress concentrations and corrosion. Insights gained in predicted failure modes of stiffened plates.
A hybrid corrosion-structural model for simulating realistic corrosion topography of maritime structures
https://orcid.org/0000-0002-9011-7733
Abstract A multiscale multiphysics model has been developed coupling nonlinear structural behaviour and the corrosion kinetics. This study develops a hybrid mechano-electrochemical corrosion model using finite element method to evaluate long-term topography evolution on carbon steel stiffened plates for marine applications. A parametric study is performed on a stiffened plate (1.5 m 0.95 m) with different localised corrosion locations (0.75 m 0.045 m) at different load levels. Stress-based anodic and cathodic surfaces are defined using a level-set function to solve the transport equation, facilitated by the moving boundary technique. Key model insights show broad-pitted corrosion features with benching, closely resembling those found in actual ship inspections and/or surveys.
Highlights New approach for realistic corrosion topography simulations for marine structures. Numerically coupling solid mechanics and electrochemistry. Quantify interactions between stress concentrations and corrosion. Insights gained in predicted failure modes of stiffened plates.
A hybrid corrosion-structural model for simulating realistic corrosion topography of maritime structures
Ilman, Eko C. (author) / Wang, Yikun (author) / Wharton, Julian A. (author) / Sobey, Adam J. (author)
Thin-Walled Structures ; 169
2021-09-20
Article (Journal)
Electronic Resource
English
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