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A procedure for numerically model surface of the corroded specimen.
- Source :
- Ships & Offshore Structures; Apr2023, Vol. 18 Issue 4, p469-484, 16p
- Publication Year :
- 2023
-
Abstract
- The paper presents a procedure for numerically modelling the surface of corroded specimens. A 3D laser scan is utilised to derive surface morphology and corrosion pit depth distribution. This corrosion depth is analyzed with a probability model to assess the morphology difference and the characteristic of the corrosion pit depth at a particular volumetric change. Furthermore, the goodness fit test statistic is carried out to observe the propensity of corrosion depth to a specific distribution, i.e. the Gaussian and non-Gaussian. The corroded specimens that conform to Gaussian distribution are numerically modelled with ANSYS APDL to generate a Gaussian surface. Furthermore, the non-Gaussian surface model is simplified as a single corrosion pit with various geometrical shapes. The mesh convergence is carried out to provide accurate stress distribution. The procedure is adjustable and applicable to the other surface morphology. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17445302
- Volume :
- 18
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Ships & Offshore Structures
- Publication Type :
- Academic Journal
- Accession number :
- 163091075
- Full Text :
- https://doi.org/10.1080/17445302.2021.2021608