TECHNICAL PAPERS
Jul 1, 1995

Recovery Length in Multilayered Spiral Strands

Publication: Journal of Engineering Mechanics
Volume 121, Issue 7

Abstract

An insight is given into the recovery length phenomenon in axially preloaded multilayered spiral strands. Recovery length is defined as the length measured from the fractured end of the wire, in which the wire will be able to carry its appropriate share of the axial load. Numerical results on realistic spiral strand constructions suggest that the recovery length in various layers is a weak function of the mean axial load on the cable. The lay angle has been found to be the primary parameter determining the magnitude of the recovery length of various layers in multilayered spiral strands and, hence, a straightforward method for determining variations of recovery length with lay angle in any layer of any spiral strand construction aimed at practicing engineers has been proposed. Using such estimates of recovery length, a minimum length of test specimens (for axial fatigue loading) equal to about 10 lay lengths is recommended for spiral strands.

Get full access to this article

View all available purchase options and get full access to this article.

References

1.
Chaplin, C. R., and Tantrum, N. R. H. (1985). “The influence of wire break distribution on strength.”Rep., Organisation Internationale l'Etude de L'Endurance des Cables (OIPEEC), Round Table Conf., National Engineering Laboratories, Glasgow, U.K.
2.
Chaplin, C. R., and Potts, A. C. (1988). “Wire rope in offshore applications.”Publ. 88/100, The Marine Technology Directorate Ltd., London, U.K.
3.
Chaplin, C. R. (1992). “Tensile fatigue of very short samples of stranded wire rope.”Proc., of IABSE Workshop; length effect on fatigue of wires and strands, Rep. 66, IABSE, Zürich, Switzerland, 201–211.
4.
Chien, C. H., and Costello, G. A.(1985). “Effective length of a fractured wire in wire rope.”J. Engrg. Mech., ASCE, 111(7), 952–961.
5.
Costello, G. A., and Phillips, J. W. (1974). “A more exact theory for twisted wire cables.”J. Engrg. Mech. Div., ASCE, Vol. 100, 1096–1099.
6.
Davidsson, W. (1955). “Investigation and calculation of the remaining tensile strength in wire ropes with broken wires.”Mech. Engrg. Ser.; ACTA Polytechnic, 3(part 6).
7.
Hankus, J. (1981). “Safety factor for hoisting rope weakened by fatigue cracks of wires.”Rep., Organisation Internationale l'Etude de l'Endurance des Cables (OIPEEC), Round Table Conf., Krakow, Poland.
8.
Hobbs, R. E., and Ghavami, K. (1982). “The fatigue of structural wire strands.”Int. J. Fatigue, 4(Apr.), 69–72.
9.
Kraincanic, I. (1995). “Influence of interwire/interlayer contact forces on various properties of large diameter steel cables,” PhD thesis, South Bank Univ., London, England.
10.
LeClair, R. A.(1991). “Axial response of multilayered strands with compliant layers.”J. Engrg. Mech., ASCE, 117(12), 2884–2903.
11.
Phillips, J. W., and Costello, G. A.(1973). “Contact stresses in twisted wire cables.”J. Engrg. Mech., ASCE, 99(2), 331–341.
12.
Phillips, J. W., Miller, R. E., and Costello, G. A. (1980). “Contact stresses in a straight cross-lay wire rope.”1st Annu. Wire Rope Conf., Engrg. Extension Service, Washington State Univ., Pullman, Wash.
13.
Raoof, M., and Hobbs, R. E.(1988a). “Analysis of multilayered structural strands.”J. Engrg. Mech., ASCE, 114(7), 1166–1182.
14.
Raoof, M., and Hobbs, R. E.(1988b). “Torsion tests on large spiral strands.”J. Strain Analysis, 23(2), 97–104.
15.
Raoof, M.(1990a). “Axial fatigue of multilayered strands.”J. Engrg. Mech., ASCE, 116(10), 2083–2099.
16.
Raoof, M. (1990b). “Axial fatigue life prediction of structural cables from first principles.”Proc., Inst. Civ. Engrs., London, England, Part 2, 91, Mar, 19–38.
17.
Raoof, M. (1990c). “Comparison between the performance of newly manufactured and well-used spiral strands.”Proc., Inst. Civ. Engrs., London, England, Part 2, 89, Mar, 103–120.
18.
Raoof, M.(1991a). “Wire recovery length in helical strand under axial fatigue loading.”Int. J. Fatigue, 13(2), 127–132.
19.
Raoof, M. (1991b). “Cable fatigue prediction in offshore applications.”Proc., 10th Int. Conf. on Offshore Mech. and Arctic Engrg., Am. Soc. of Mech. Engrs., (ASME), New York, N.Y., 403–411.
20.
Raoof, M.(1991c). “Methods for analyzing large spiral strands.”J. Strain Anal., 26(3), 165–174.
21.
Raoof, M.(1992a). “Free bending fatigue life estimation of cables at points of fixity.”J. Engrg. Mech., ASCE, 118(9), 1747–1764.
22.
Raoof, M.(1992b). “Free bending fatigue of axially preloaded spiral strands.”J. Strain Analysis, 27(3), 127–136.
23.
Raoof, M., and Huang, Y. P.(1992). “Wire recovery length in suspension bridge cable.”J. Struct. Engrg., ASCE, 118(12), 3255–3267.
24.
Raoof, M., and Hobbs, R. E. (1994). “Analysis of axial fatigue data for wire ropes.”Int. J. Fatigue, 16(Oct.), 493–501.
25.
Wiek, L. (1977). “The influence of broken wires on wire rope strength and discarding.” Organisation Internationale l'Etude de l'Endurance des Cables (OIPEEC), Round Table Conf., Luxembourg.
26.
Wyatt, T. A. (1978). “Thermal damping in 38mm (nominal) specimens.”CESLIC Rep. SC2, Civ. Engrg. Dept., Imperial Coll., London, England.

Information & Authors

Information

Published In

Go to Journal of Engineering Mechanics
Journal of Engineering Mechanics
Volume 121Issue 7July 1995
Pages: 795 - 800

History

Published online: Jul 1, 1995
Published in print: Jul 1995

Permissions

Request permissions for this article.

Authors

Affiliations

Mohammed Raoof
Prof. of Struct. Engrg., Civ. Bldg. Engrg. Dept., Loughborough Univ. of Technol., Loughborough, Leicestershire, LE11 3TU, England.
Ivana Kraincanic
Res. Student, School of Arch. and Civ. Engrg., South Bank Univ., Wandsworth Rd., London, SW8 2JZ, England.

Metrics & Citations

Metrics

Citations

Download citation

If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.

Cited by

View Options

Get Access

Access content

Please select your options to get access

Log in/Register Log in via your institution (Shibboleth)
ASCE Members: Please log in to see member pricing

Purchase

Save for later Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.

Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
ASCE Library Card (5 downloads)
$105.00
Add to cart
ASCE Library Card (20 downloads)
$280.00
Add to cart
Buy Single Article
$35.00
Add to cart

Get Access

Access content

Please select your options to get access

Log in/Register Log in via your institution (Shibboleth)
ASCE Members: Please log in to see member pricing

Purchase

Save for later Information on ASCE Library Cards
ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.

Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
ASCE Library Card (5 downloads)
$105.00
Add to cart
ASCE Library Card (20 downloads)
$280.00
Add to cart
Buy Single Article
$35.00
Add to cart

Media

Figures

Other

Tables

Share

Share

Copy the content Link

Share with email

Email a colleague

Share