Experimental and numerical study of mooring chain residual stresses and implications for fatigue life
| Autor: | Bjørn Skallerud, Ershad P. Zarandi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Cyclic plasticity business.industry Mechanical Engineering Drilling Service load Fatigue testing 02 engineering and technology Structural engineering 021001 nanoscience & nanotechnology Mooring Industrial and Manufacturing Engineering Corrosion Finite element simulation 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Residual stress Modeling and Simulation General Materials Science 0210 nano-technology business |
| Zdroj: | International Journal of Fatigue |
| Popis: | Residual stresses in large mooring chains were measured for the first time in this study. Two measurement techniques were employed (neutron diffraction and hole drilling). Elastic-plastic finite element simulation of the proof loading was conducted, and the computed residual stresses were compared to the experimental measurements. Further, the cyclic plasticity of the material was taken into account to investigate residual stress redistribution caused by introduction of corrosion pits and cyclic service loads. A critical damage parameter was employed to estimate fatigue crack initiation life of corroded mooring chains subjected to various service load levels considering the effect of residual stresses. This is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Databáze: | OpenAIRE |
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