Strength of Synthetic Fiber Ropes Degraded by Repetitive Bending

Abstract

A synthetic fiber rope which has lightweight, high tensile strength and flexibility is receiving a lot of attention as the replacement for a stainless steel wire rope. This paper takes note of durability of repetitive bending. We performed an experiment with two synthetic fiber ropes and one stainless steel wire rope in conformity with Japanese Industrial Standards. As a result, the stainless steel wire rope and one synthetic fiber rope which has high resistance to frictional wear didn't get loss of tensile strength. However, repeated bending causes the tensile strength deterioration of the other synthetic fiber rope which is weak in frictional wear.