THE OPTIMAL USE OF BENDING FATIGUE TESTING MACHINES FOR ROPES: A COMPARATIVE STUDY
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Summary
This study investigates the use of different bending-fatigue testing machines for wire ropes and evaluates their comparability under harmonized test conditions. Therefore, three exemplary machine types were examined using identical rope construction, load, and geometric parameters to isolate the influence of the test setup itself.
Although the test conditions were harmonized, variations in fatigue life were observed, indicating that additional factors affect the rope performance. Possible influencing mechanisms were identified and discussed based on experimental observations and theoretical considerations.
The study highlights the importance of controlling mechanical and operational parameters to ensure the reliability of test results obtained from different bending-fatigue machines. The findings shall contribute to a better understanding of machine-dependent effects in rope fatigue testing and support future efforts toward improved standardization and reproducibility of experimental method.
Author(s): M. Elig, M. Fuhrmann and M. Anders
Keywords: bending fatigue, wire ropes, OIPEEC recommendations, fatigue testing machines, service life, test standardization, reproducibility, single
