Wire Strand with Complex Shaped Elliptic Outer Wires

Abstract

The main advantage of wire ropes is their ability to operate under high tensile load and in this way to resist large axial loads. Different types of wire ropes are produced according to increase their strength over the traditional ones. For example compacted wire ropes are low stretch wire rigging which increase the breaking strength and stretch of the wire ropes compared to the traditional wire ropes. Outer wires are formed using a special process called compacting. In this article, a three-dimensional model of different external wire cross-section is examined. For this purpose, a (1+6) wire strand model designed by using elliptical cross-sectional outer wires are designed. Then finite element analysis results for stress, displacement and contact pressure are presented.

Keywords

• Wire strand,elliptical wire strand,modeling wire rope,elliptical outer wire composition,wire strand finite element analysis,complex wire structures

References

1. [1] Costello, G.A. (1990). Theory of Wire Rope, Berl: Springer.
2. [2] Velinsky, S.A., Anderson, G.L., and Costello, G.A. (1984). "Wire Rope With Complex Cross Sections", Journal of Engineering Mechanics, vol. 110, no. 3, pp.380-391.
3. [3] Nawrocki, A. and Labrosse M. (2000). "A Finite Element Model for Simple Straight Wire Rope Strands", Computers and Structures, 77, 345-359.
4. [4] Jiang, W.G., Yao, M.S., and Walton, J.M. (1999). "A Concise Finite Element Model for Simple Straight Wire Rope Strand", International Journal of Mechanical Sciences, vol.41, pp.143-61.
5. [5] Elata, D., Eshkenazy, R., and Weiss, M.P. (2004). "The Mechanical Behavior of a Wire Rope with an Independent Wire Rope Core", International Journal of Solids and Structures, 41, 1157–1172.
6. [6] Erdönmez, C., and İmrak, C.E. (2011). "A Finite Element Model for Independent Wire Rope Core with Double Helical Geometry Subjected to Axial Loads", SADHANA-Academy Proceedings in Engineering Sciences, vol.36, pp.995-1008. DOI: 10.1007/s12046-011-0053-1.
7. [7] Erdönmez, C., and İmrak, C.E. (2011). "Modeling Techniques of Nested Helical Structure Based Geometry for Numerical Analysis", Strojniški vestnik - Journal of Mechanical Engineering, vol. 57,no.4, pp.283-292. DOI:10.5545/sv-jme.2009.006.
8. [8] Eva, S., Gabriel, F., Stanislav, K., Molnar, V., and Micheal, F. (2015). "Finite Element Analysis of Spiral Strands with Different Shapes Subjected to Axial Loads", Advances in Engineering Software, vol.83, pp.45-58. DOI:10.1016/j.advengsoft.2015.01.004.