Standards › Mooring
Synthetic rope mooring
Synthetic (polyester) fibre-rope mooring service life
This page describes synthetic (polyester) fibre-rope mooring service life and the associated engineering assessment topics. Project use requires qualified inputs and engineering review.
Assessment topics
- Screen a polyester fibre-rope mooring for fatigue, creep and minimum-tension limits.
- Estimate service life and flag the governing failure mode.
- Apply the fibre-rope stiffness behaviour (upper/lower bound) to the check.
Related standards
API RP 2SM
DNV-OS-E301
Polyester rope
Creep
Minimum tension
Questions
Why are fibre-rope moorings checked differently?
Polyester rope has non-linear, time-dependent stiffness and creep, so service life is governed by fatigue, creep and minimum-tension limits rather than a single break-load check. Guidance such as API RP 2SM applies.
What assessment outputs are described?
A service-life screen with the governing mode — fatigue, creep or minimum tension — and the assumptions on rope stiffness bounds.
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