Acta Mechanica Slovaca 2011, 15(3):68-71 | DOI: 10.21496/ams.2011.030

Mathematical Model of Fatigue for Steel Wire Ropes

Dušan Knežo
Department of Applied Mathematics and Informatics, Faculty of Mechanical Engineering, Letná 9, 042 00 Košice, Slovak Republic

The steel wire rope is stressed during operation by the tensile and bending forces. This loading state has a relevant impact on mechanical characteristics of the rope. A negative influence on the rope properties has a corrosion of the rope wires, especially. The wires are the basic construction components of the rope. It is necessary to know changes of rope mechanical characteristics with regard to a safety and reliability of the rope operation. In a case that the rope properties are not able to fulfil requirements of the safety and reliability, it is unavoidable to put-off such rope. There is presented in this paper a mathematical model describing dependence between prolongation of the rope and the number of loading cycles at various conditions. Such model enables to predict properties of the tested steel wire rope, as well as to estimate the put-off time of the rope.

Keywords: Steel Wire Rope, Rope Fatigue, Mathematical Model

Received: March 28, 2011; Accepted: May 24, 2011; Published: October 31, 2011  Show citation

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Knežo, D. (2011). Mathematical Model of Fatigue for Steel Wire Ropes. Acta Mechanica Slovaca, 15(3), 68-71. doi: 10.21496/ams.2011.030
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