A hybrid corrosion-structural model for simulating realistic corrosion topography of maritime structures
| Autor: | Adam Sobey, Julian A. Wharton, Eko Charnius Ilman, Yikun Wang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Carbon steel business.industry Mechanical Engineering Multiphysics Building and Construction Structural engineering engineering.material Finite element method Cathodic protection Corrosion Stress (mechanics) engineering Coupling (piping) business Convection–diffusion equation Civil and Structural Engineering |
| Zdroj: | Thin-Walled Structures. 169:108481 |
| ISSN: | 0263-8231 |
| DOI: | 10.1016/j.tws.2021.108481 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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