Creep behaviour of a parallel-lay aramid rope

A series of dead load tests on a parallel-lay aramid rope has been conducted with the purpose of studying its creep behaviour. The main variable considered in the tests was the applied stress which varied from 24.5%–81.6% ultimate tensile strength. It was found that creep and recovery are adequately described by a logarithmic time law and that the creep coefficient for the material can be considered stress independent. An empirical expression for prediction of long-term creep at ambient temperature is presented.