Analysis for Residual Twisting Moment in a Steel Cord during Twisting Wires

와이어의 연선공정시 스틸 코드에서의 잔류 비틀림 모멘트의 해석

  • Published : 2000.02.01


The effects of various factors were studied on the process of a steel cord by twisting wires. To remove residual twisting moment after the steel cord process, the twisting angles of residual elasti c twisting and overtwisting were measured and compared with finite element results. The agreement between experimental data and finite element calculations was good for the angles of residual elastic twisting and over-twisting. The stress distributions in a steel cord under complex loading conditions were also obtained by using the finite element analysis.


Steel Cord;Over-Twisting;Untwisting;Residual Torsional Stress;Hysteresis Modulus


  1. Kanp, F., 1984, 'Effects of Residual Stresses in Wire Drawing,' Wire World Int., Nov./Dec., pp. 253-255
  2. Kanp, F., 1987, 'Effects of Torsion on Residual Stresses in Wire,' Wire World Int., Jan/Feb., pp. 8-9
  3. Knap, F., 1987, 'Twisting Wire and Round Bar to Increase Strength,' Wire World Int., Aug., pp. 94-96
  4. $I-DEAS^{TM}$ Simulation's I and II Manual, 1995, Structural Dynamics Research Corporation
  5. AGAQUS User's I, II, and III Manual, 1997, Hibbitt, Karlsson and Sorrensen
  6. Ugural, A. C., 1991, Mechanics of Materials, McGraw-Hill, pp. 343-346
  7. Utting, W. S. and Jones, N., 1987, 'The Response of Wire Rope Stands to Axial Tensile Loads-Part II. Comparison of Experimental Results and Theoretical Predictions,' Int. J. Mech. Sci., Vol. 29, pp. 621-636
  8. Jiang, W. G., Yao, M. S. and Walton, J. M., 1999, 'A Concise Finite Element Model for Simple Straight Wire Rope Strand,' Int. J. Mech. Sci., Vol. 41, pp. 143-161
  9. Bravin, B., 1984, 'Twisting Machines: Analysis of Mechanics and Properties,' Wire Journal, pp. 48-55
  10. Alexander, D., 1990, 'Double-twist Stranding,' The Wire Industry, Jul. pp. 494-499
  11. Utting, W. S. adn Jones, N., 1987, 'The Response of Wire Rope Strands to Axial Tensile Loads- Part I. Experimental Results and Theoretical Predictions,' Int. J. Mech. Sci., Vol. 29, pp. 605-619
  12. Kunda, B., 1968, 'Plastic Twisting of Steel Wire,' The Wire Industry
  13. Jones, N. and Christodoulides, J. C., 1980, 'Static Plastic Behavior of a Strand,' Int. J. Mech. Sci., Vol. 22, pp. 185-195
  14. Wall, C. A., 1972, 'Wire Twister,' U.S. Patent No. 3685271
  15. Taketomi, K., 1973, 'Twisting Motion and Process for Producing Wrie Cords,' U.S. Patent No.3771304