Journal of Theoretical
and Applied Mechanics
56, 4, pp. 951-960, Warsaw 2018
DOI: 10.15632/jtam-pl.56.4.951

Model construction and experimental verification of the equivalent elastic modulus of a double-helix wire rope

Hong Yue Chen, Kun Zhang, Yang Xi Bai, Ying Ma, Han Zhong Deng
To accurately describe mechanical properties of a complex wire rope, a double-helix wire
rope is used as an example in this study. According to the spatial structure characteristics
of the central helical line of each wire rope, the spatial configuration curve for the double-
-helix wire rope is obtained by using differential geometry theory. On the basis of this curve,
the mathematical model of the equivalent elastic modulus of the wire rope is developed,
and the elastic modulus of a 6×7+IWS wire rope is measured using a universal tensile
testing machine. The experimental results are compared with the predicted results to verify
correctness of the elastic modulus prediction of the double-helix wire rope.
Keywords: mechanical properties, wire rope, double-helix wire rope, spatial configuration curve, equivalent elastic modulus

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