Abstract
This paper presents the development of a test rig for the characterisation of fretting in the nub-groove contacts of pressure armour layers in flexible marine risers and an analytical design tool called EASY-FRET (Engineering Analysis SYstem for FRETting) for fretting wear, fatigue and stress analysis of fretting contacts. The test rig characterisation includes both partial and gross slip fretting regimes under representative three-dimensional crossed-cylinder contact pressure and slip fretting loading conditions, identified from finite element global-local modelling of the complex geometrical-loading configuration. The analytical design tool simulates wear and associated fretting fatigue indicator parameters. The ability to predict the fretting wear and fretting fatigue in flexible marine risers will allow for less conservative design.
Original language | English |
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Article number | 103515 |
Journal | Theoretical and Applied Fracture Mechanics |
Volume | 121 |
DOIs | |
Publication status | Published - 01 Oct 2022 |
Keywords
- Fretting fatigue
- Fretting wear
- Nub-groove contact