Comparison of Wire Rope Life Using Nylon and Steel Sheaves - Part II: New Concept to Improved Predictability of Wire Rope Remaining Strength After Cycling

An analysis has been made of the modes of failure of cycled wire rope. It has been found that there is a linear relation between the remaining strength and a newly introduced fatigue factor. The linear relation, and deviations from it, can be used to evaluate reliability of wire rope/sheave systems. This relationship can also be used to predict the remaining strength of a wire rope after failure criteria is reached.