Wire ropes, due to their construction, combine two very interesting properties: high axial strength and flexibility in bending. However, the assemblage of wires to form flexible ropes results in the sliding of contacting wires and the creation of wear scars, which can act as stress risers and reduce the fatigue life of ropes. Therefore, in order to understand the fatigue behavior of wire ropes, the degradation that occurs between the wires and the strands has to be studied first. In this study, after identifying the main wear patterns for a polymer-covered stranded rope, the wear evolution along the number of cycles and the effect of the sheave diameter in the preferential wear sites were analyzed. The tests were carried out in a custom-made Bending over Sheave (BoS) fatigue test bench and short segments of the rope were analyzed by Scanning Electron Microscope (SEM) and confocal imaging profilometry in order to characterize the wear scars. The worn volume and the wear scar depth were selected as the most suitable parameters to characterize the wear behavior of wires. In addition, the importance of the polymeric cover and sheave diameter was proved: a reduction of the sheave diameter results in a bigger wear rate (μm3/cycle).
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References
Wire Rope Users Manual, Committee of Wire Rope Producers, American Iron and Steel Institute, Washington, D.C., 1979
R.B. Waterhouse, Fretting Corrosion, Pergamon Press, Oxford, 1972
R.B. Waterhouse, Fretting Fatigue, Applied Science Publishers LTD, London, 1981
B.R. Pearson, P.A. Brook, R.B. Waterhouse, Fretting in Aqueous Media Particularly of Roping Steels in Seawater, Wear, 106(1–3), 1985, p 225–260
R. Smallwood and R.B. Waterhouse, Residual Stress Patterns in Cold Drawn Steel Wires and Their Effect on Fretting-Corrosion-Fatigue Behaviour in Seawater, in Applied Stress Analysis, T.H. Hyde and E. Ollerton, Eds., Elsevier Applied Science, 1990, p 82–90
S.J. Harris, R.B. Waterhouse, I.R. McColl, Fretting Damage in Locked Oil Steel Ropes, Wear, 170(1), 1993, p 63–70
R.E. Hobbs, M. Raoof, Mechanism of Fretting Fatigue in Steel Cables, Int. J. Fatigue 16(4), 1994, p 273–280
R.B. Waterhouse, Fretting in Steel Ropes and Cable—A Review, ASTM Spec. Tech. Publ., 1425, 2002; p 3–14
C.R. Chaplin and A. Potts, Wire Rope Offshore—A Critical Review of Wire Rope Endurance Research Affecting Offshore Applications, UK Health & Safety Executive (HSE), Offshore Technology Report OTH 91 341, 1991
I.M.L. Ridge, J. Zheng, C.R. Chaplin, Measurement of Cyclic Bending Strains in Steel Wire Rope, J. Strain Anal. Eng. Des., 35(6), 2000, p 545–558
I.M.L. Ridge, C.R. Chaplin, J. Zheng, Effect of Degradation and Impaired Quality on Wire Rope Bending over Sheave Fatigue Endurance, Eng. Fail. Anal., 8(2), 2001, p 173–187
K. Feyrer, Statistical Evaluation of the Results of Wire Rope Bending Tests—1, Wire, 31(3), 1981, p 118–121
K. Feyrer, Statistical Evaluation of the Results of Wire Rope Bending Tests—2, Wire, 31(4), 1981, p 158–162
K. Feyrer, Calculation of Rope Drives, Wire, 33(2), 1983, p 35–37
K. Feyrer, The Number of Bending Cycles to Breakage of Parallel Lay Wire Ropes, Wire, 35(5), 1985, p 198–202
K. Feyrer, Endurance Calculation of Wire Ropes Running over Sheaves, Wire, 45(2), 1995, p 99–103
K.K. Schrems, Wear Related Fatigue in a Wire Rope Failure, J. Test. Eval., 22(5), 1994, p 490–499
K.K. Schrems, D. Maclaren, Failure Analysis of a Mine Hoist Rope, Eng. Fail. Anal., 4(1), 1997, p 25–38
M. Torkar, B. Arzensek, Failure of Crane Wire Rope, Eng. Fail. Anal., 9(2), 2002, p 227–233
P. Parameswaran, V.S. Raghunathan, S.C. Hiremath, K.R. Paknikar, Failure of Locked Coil Wire Rope of Coal Handling System, Eng. Fail. Anal., 10(4), 2003, p 395–404
K.K. Schrems, C.P. Dogan, J.A. Hawk, Wear Mechanisms in a Nonrotating Wire Rope, J. Mater. Eng. Perform., 4(2), 1995, p 136–144
“Safety rules for the construction and installation of lifts—Part 1: Electric lifts,” UNE EN 81–1 2001, p 12–176
Sensofar Corporation Website. http://www.sensofar.com/ [accessed 11 April 2007]
M.A. Urchegui, W. Tato, and X. Gómez, A Method for Evaluating Fretting Wear Scars in Thin Steel Roping Wires Based On Confocal Imaging Profilometry, J. Test. Eval., 35(4), 2007, p 357–363
T. Liskiewicz, S. Fouvry, Development of a Friction Energy Capacity Approach to Predict the Surface Coating Endurance Under Complex Oscillating Sliding Conditions, Tribol. Int., 38(1), 2005, p 69–79
C. Paulin, S. Fouvry, S. Deyber, Wear Kinetics of Ti-6Al-4V Under Constant and Variable Fretting Sliding Conditions, Wear, 259(1–6), 2005, p 292–299
A. Ramalho, J.C. Miranda, The Relationship Between Wear and Dissipated Energy in Sliding Systems, Wear, 260(4–5), 2006, p 361–367
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This research is sponsored by the Basque Government under the Universidad Empresa programme (Ref. UE2004-6). The authors gratefully acknowledge the support of Orona S. Coop. Also the technical assistance of Mr. J. Salegui (from Mondragon Goi Eskola Politeknikoa) is gratefully acknowledged.
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Urchegui, M.A., Tato, W. & Gómez, X. Wear Evolution in a Stranded Rope Subjected to Cyclic Bending. J. of Materi Eng and Perform 17, 550–560 (2008). https://doi.org/10.1007/s11665-007-9165-5
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DOI: https://doi.org/10.1007/s11665-007-9165-5