Quantifying the residual creep life of polyester mooring ropes
Bradon, J.E. and Chaplin, C.R. (2005) Quantifying the residual creep life of polyester mooring ropes. International Journal of Offshore and Polar Engineering, 15 (3). pp. 223-228. ISSN 1053-5381
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This paper assesses the ARELIS (Assured Residual Life Span) method for estimating residual creep life of polyester rope used in deepwater mooring lines. A statistical model has been developed to quantify the uncertainties in the method, such as the scatter in creep rupture test data and load sharing between sub-ropes. This model can be used to determine the required test load, duration and number of ARELIS tests, in order to guarantee a minimum creep life for a mooring line at its service load. Creep rupture tests have been performed to provide input for the statistical model.