Abstract

Methods for calculating the fatigue life of cables with an infinite number of parallel wires are presented. The methods account for the effects of cable legnth and the increase in stress range that occurs as cable wires break. Comparisons are made with fatigue lives of cables with finite numbers of wires calculated by Monte Carlo simulation. A previously published model is extended and applied to the case where the fatigue lives of short pieces (test specimens) of the cable wire have a log-normal distribution. Also, an approximate solution for the life of long cables is presented.

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