Fretting fatigue in electrical transmission lines

Zhou, Zhongrong; Cardou, A.; Fiset, M.; Goudreau, S.

doi:10.1016/0043-1648(94)90271-2

Cited by 53 publications

(16 citation statements)

References 6 publications

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“…Zhou et al [9] studied the plastic flow, local wear and fretting failure for overhead electrical conductors imposed by bending fatigue loads. Zhou et al [10] presented experimental test results obtained from tests on single wires under conditions simulating a typical conductor-clamp contact.…”

Section: Introductionmentioning

confidence: 99%

Experimental and finite element analysis of fatigue performance of copper power conductors

Nasution

Sævik

Gjøsteen

et al. 2013

International Journal of Fatigue

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Section: Introductionmentioning

confidence: 99%

Experimental and finite element analysis of fatigue performance of copper power conductors

Nasution

Sævik

Gjøsteen

et al. 2013

International Journal of Fatigue

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“…Raoof et al developed a semi‐analytical procedure in order to determine the stress produced in wires because of axial loads, including tangential and normal contact stresses, and extending it for bending forces . Later, Zhou et al tested electrical power line cables, confirming that fretting is a decisive cause of cable failure . In recent years, Fadel et al conducted bending fatigue tests in cables in order to determine the influence of mean stress, noticing that the failure is also produced by fretting forces .…”

Section: Introductionmentioning

confidence: 99%

“…3 Later, Zhou et al tested electrical power line cables, confirming that fretting is a decisive cause of cable failure. 4,5 In recent years, Fadel et al conducted bending fatigue tests in cables in order to determine the influence of mean stress, noticing that the failure is also produced by fretting forces. 6 Winkler et al determined the fatigue life and the displacements between wires under bending conditions with different curvature radii.…”

Section: Introductionmentioning

confidence: 99%

New fatigue device for testing cables: Design and results

Erena

Vázquez

Domı́nguez

2019

Fatigue Fract Eng Mat Struct

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The fracture of cables is often caused by fatigue phenomena. To analyse the fatigue behaviour of these elements, a device has been designed, manufactured, and validated. This machine can produce different load states for the specimens, combining variable axial loads and variable bending moments. The testing machine has been designed to achieve two goals: to avoid the fracture of the cable in the vicinity of the clamps and to assure that the fracture of the cable is in the middle of the length of the specimen. The type of failure will be due to a combination of global stresses and fretting fatigue phenomena. This work also shows the results of different fatigue tests for a specific strand configuration. Finally, the fracture and contact surfaces of the strand have been analysed with a scanning electron microscope (SEM). The results obtained with this device show that it is adequate for testing cables and strands subjected to different combinations of axial loads and bending moments.

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“…Currently, most of the publications [1][2][3][4]7] in fatigue failure of overhead conductor are oriented to assessment the nominal stress, related to the bending movement of the conductor, and the mean stretching loads using the Poffenberger-Swart (P-S) formula [9]. However, the P-S formula is semiempirical and provides nominal idealized stress which is used to establish and compare the fatigue strength of different conductors based on bending stress.…”

Section: Introductionmentioning

confidence: 99%

“…Such cables are normally composed of aluminium wires twisted around a core and it is perhaps the most important component in the transmission lines [1][2][3]. The fatigue failure in these cables are induced by Aeolian vibration and frequently occur inside the "rigid" device where the conductor's motion is constrained, such as suspension clamps, spacers, spacer dampers or Stockbridge dampers.…”

Section: Introductionmentioning

confidence: 99%

Numerical fatigue life estimation of aluminium 6201-T81 wires containing geometric discontinuities.

et al. 2018

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Abstract. Previous works have shown that fretting fatigue can be modelled as a notch problem due to the mild superficial damage produced in the partial slip regime during fretting. In this context, the aim of this numerical and experimental study is to estimate the fatigue life of aluminium 6201-T81 wires, used in overhead conductors, containing geometric discontinuities. These discontinuities induce a stress field analogous to the fretting problem. To perform the fatigue life assessments the LM-Nf relationship, which is an extension of the Theory of Critical Distance (TCD), was applied. The LM-Nf relationship was calibrated using two S-N curves, one of a plain wire and other of a notched wire. The validation of the numerical approach estimations was performed using a wire containing a through hole. The estimations were fallen almost entirely among factor 3 bands when compared with the experimental results. This factor 3 represents the biggest scatter in the S-N curves used to calibrate the LM-Nf relation. The TCD approach applied, in terms of point method, provide accurate life estimations in the range 10 5 and 10 6 cycles.

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Fretting fatigue in electrical transmission lines

Cited by 53 publications

References 6 publications

Experimental and finite element analysis of fatigue performance of copper power conductors

Experimental and finite element analysis of fatigue performance of copper power conductors

New fatigue device for testing cables: Design and results

Numerical fatigue life estimation of aluminium 6201-T81 wires containing geometric discontinuities.

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