Wire Rope Terminations, Section, And Replacement Criteria

Metcalf, John T.; Matanzo, F.

doi:10.4043/3853-ms

Cited by 3 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The test sample was made up of a length of approximately 3 m of 76 mm 6 3 36 IWRC galvanized rope in a 3-3 1 8 in (76-79 mm) Crosby grooved open spelter socket, filled with Wirelock polyester resin [13]. The minimum breaking load (MBL) of the rope was 4120 kN.…”

Section: Comparison Of Measured Behaviour With Finite Element Model Resultsmentioning

confidence: 99%

“…Resin socket terminations are a development of spelter sockets, where the potting compound is typically a mixture of polyester resin, a silica filler and a catalyst, instead of metallic spelter. Metcalf and Matanzo [1] also found that resin socket terminations had generally slightly higher efficiencies than zinc alloy spelter sockets under tensile and fatigue loading. However, they did note that the performance of both these socket types was sensitive to poor workmanship.…”

Section: Introductionmentioning

confidence: 93%

“…Work by Metcalf and Matanzo [1], Feyrer [2] and Feyrer et al [3] has shown that spelter-type sockets perform at least as well as, and in many cases better than, traditional loop-type terminations (e.g. wedge sockets, U-bolt clips and Flemish loops) under both tensile strength and fatigue loading.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of a resin socket termination for a wire rope

Bradon

Chaplin

Ridge

2001

The Journal of Strain Analysis for Engineering Design

View full text Add to dashboard Cite

A finite element model to determine the socket strains and resin pressures in a resin socket termination for a wire rope has been developed. This model takes account of the relative movement between the socket and the resin cone that occurs when a termination is under load. To verify the accuracy of the model, computed socket strains were compared with strain measurements both on a full-scale termination and on a laboratory-scale model. As a result of these comparisons, modifications were made to the finite element model to improve its accuracy. It was concluded that the wires were held in the socket by frictional forces which were effective only in the resin section between 10 and 50 per cent of the socket basket length (measured from the front of the socket). This conclusion was verified by further laboratory tests.It was therefore deduced that manufacturing defects in the back half of the socket would not reduce the strength of the termination, while defects in the front half are much more significant. This was also demonstrated by laboratory tests for both quasi-static and fatigue loading. These conclusions apply only to sockets of the type described in this paper and are not necessarily true for all socket designs.

show abstract

Section: Comparison Of Measured Behaviour With Finite Element Model Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 93%

See 1 more Smart Citation

Analysis of a resin socket termination for a wire rope

Bradon

Chaplin

Ridge

2001

The Journal of Strain Analysis for Engineering Design

View full text Add to dashboard Cite

show abstract

“…There have been a number of investigations into the performance of socket-type terminations. Some are studies of performance based on the results of test programmes, including those by Metcalf and Matanzo [12], Feyrer [13], Borello [14] and Roebuck and Collins [15]. Others take a more analytical approach, e.g.…”

Section: Background To the Investigationmentioning

confidence: 99%

Comparison of white metal and resin socket terminations for wire ropes

Bradon

Ridge

2003

The Journal of Strain Analysis for Engineering Design

View full text Add to dashboard Cite

Previously the authors have presented both theoretical and experimental work discussing the operating mechanism of a wire rope held in a tapered socket by means of a cast resin cone. The work reported here extends the investigation to address the question of whether the same socket fabricated with white metal operates in the same manner. To date, previous investigations have compared the operational efficiency of resin and white metal in terms of both strength and/or fatigue endurance. Some other work has analysed the operation of resin sockets or specific cast metal terminations. This paper seeks to draw the results from this work together, and, in addition to a theoretical analysis, presents experimental data obtained from a direct comparison of the operation mechanism for the same sockets filled with resin or white metal. Results show that white metal terminations have a very different distribution of stresses along the length of the socket basket from resin terminations, and a smaller but still significant amount of socket draw. For both types of termination the socket draw develops high frictional gripping forces which can transfer the load from the rope to the socket. The different stress distributions mean that the consequences of termination fabrication defects may not be the same for resin and white metal terminations.

show abstract

“…Bending-tension fatigue endurance will be influenced by the same parameters as BOS fatigue but with the added OTC 5718 POTTS,~HAPLIN & TANTRUM 5 complications of cyclic tensile load variation about a mean and small amplitude bending, Le. bending lengths less than one lay length.…”

Section: Bending·tension Fatiguementioning

confidence: 99%

Factors Influencing The Endurance Of Steel Wire Ropes For Mooring Offshore Structures

Potts

Chaplin

Tantrum

1988

Offshore Technology Conference

View full text Add to dashboard Cite

The service factors influencing the endurance of steel wire rope moorings for offshore structures are discussed. A tensiontension fatigue SoN curve for six strand ropes is presented. consideration of cumulative damage resulting from a typical TBP spectrum shows tensile fatigue as a non-critical upper bound on endurance. However, combined bending-tension fatigue at fairlead arrangements is considered to represent the most severe fatigue loading. This mechanism is discussed in relation to existing knowledge of wire rope fatigue behaviour which provides an indication of the influence of the principal variables. The effect of the seawater environment is also reviewed and it is concluded that adequate protection can be provided by combinations of galvanizing, blocking compounds and impressed current systems, while jacketing may also provide long term protection. Caution is expressed regarding the use of bright wires and the consequences of zinc dissolution resulting from extended exposure. The problems of inspection and NOT are also discussed and recommendations are made as to how this may be effected for the critical fairlead region with the mooring line in place. Recommendations are also made as to what further work is necessary to give operators and certifying authorities greater confidence in the endurance of wire ropes for permanent moorings.

show abstract

Wire Rope Terminations, Section, And Replacement Criteria

Cited by 3 publications

References 0 publications

Analysis of a resin socket termination for a wire rope

Analysis of a resin socket termination for a wire rope

Comparison of white metal and resin socket terminations for wire ropes

Factors Influencing The Endurance Of Steel Wire Ropes For Mooring Offshore Structures

Contact Info

Product

Resources

About