Influence of Friction on the Cyclic Response of Simple Straight Wire Rope Strands under Axial Loads

Labrosse, Michel R.; Nawrocki, Anne; Conway, Ted

doi:10.2346/1.2136002

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…The numerical results are compared with the analytical results of the Costello and Labrosse model [13,14]. It is noted that the analytical results resulting from the solution of Costello and Labrosse [13][14][15][16] agree with our numerical results in the part of elasticity (linear part) and that the effect of the coefficient of friction is negligible on the behavior under tensile loading. The stress as a function of the deformation of the conductor is shown in Figure 11.…”

Section: Effect Of Coefficient Of Frictionsupporting

confidence: 52%

Numerical Modeling of the Micromechanics Damage of an Offshore Electrical High-Voltage Phase

Ech-Cheikh,

Drissi-Habti

2023

Energies

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Due to the strong growth of offshore renewable energies, research and engineering in this field is constantly expanding. One of the centerpieces of these technologies is the high-voltage electrical cable, generally made of copper, to transport the energy produced from the offshore farm to the onshore station. The critical nature of these cables lies in the proven resistance that they must demonstrate during stays underwater for several years, even decades, in difficult environmental conditions, which begin at the handling, shipping and underground burial stage. The marine environment can lead to deformation of the copper wires well beyond the limit of proportionality and, consequently, to breakage. Copper, although being an exceptional electrical conductor, has very poor mechanical properties. The plasticity generated by the excessive deformation of copper wires affects all of the physical properties of copper. When plasticity develops, electrical transport is affected and the heat within copper increases, but care should be given to not exceed 90 °C, as this would result in the shutdown of the cable with dramatic economic consequences. The work carried out in this article, which is part of the National Project EMODI as well as the European Project FLOW-CAM, aims at studying the mechanical behavior of the phase in order to correlate the deformation levels reached to the phase geometry as well as operating mechanisms of damage which reflect the proliferation of microstructural defects within the conductor. To do this, we propose a numerical model using Abaqus. Correct description of the effects of several parameters (geometry of the phase) and plasticity development on the performance of the phase were simulated and discussed.

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