Importance of Fretting in Vibration Failures of Stranded Conductors

Fricke, W.; Rawlins, C.B.

doi:10.1109/tpas.1968.292104

Cited by 22 publications

(4 citation statements)

References 6 publications

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“…Most fatigue failures in strands of conductors occurs in the suspension clamp at the contact points of wires-towires and wires-to-suspension clamp [1,10]. Because of the difficulty on accurate measurement of mechanical strain or stress at these points, the adoption of some assumptions is vital.…”

Section: Bending Stress and H/w Parameter 21 Bending Stressmentioning

confidence: 99%

The effect of mean stress on the fatigue behaviour of overhead conductor function of theH/wparameter

et al. 2018

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The objective of this work is to evaluate the effects of mean stress on the fatigue behaviour of an All Aluminium Conductor (AAC Orchid), Aluminium Conductor Steel Reinforced (ACSR Tern), and an Aluminium Conductor Alloy Reinforced (ACAR 750 MCM). In this sense, 72 fatigue tests on overhead conductors were performed using different values of H/w parameter. Based on the experimental results, the parameters which describe the fatigue behaviour of the conductors were determined after generating theirs S-N curves. In the assessment of the mean stress effects on the fatigue life, Goodman and Gerber’s relations were fitted to evaluate the use of such models for the conductors. It was observed that the evaluation of the mean stress effect on the overhead conductor could be made by using the fatigue relations.

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Section: Bending Stress and H/w Parameter 21 Bending Stressmentioning

confidence: 99%

The effect of mean stress on the fatigue behaviour of overhead conductor function of theH/wparameter

et al. 2018

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“…Fretting-fatigue is known to reduce the total lifetime of conductors, with damage especially located in the clamping zone [1]- [8]. This area makes the link between a power line and an electric pylon, and is the critical region for fretting-fatigue failures on aluminum strands (Fig.…”

Section: Introductionmentioning

confidence: 99%

A global–local approach to predict the fretting-fatigue failure of clamped aluminum powerline conductors: From mono-contact crossed wires to full conductor vibrational tests

Said

Fouvry

Cailletaud

et al. 2023

Engineering Failure Analysis

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“…It is worth noting that steel strands possess a more intricate structure compared with steel wires. The radial contact between steel strand wires results in friction, leading to friction fatigue [27]. It also causes guided waves within the strand to exhibit notch frequencies [28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Characteristic Parameters of Magnetostrictive Guided Wave Testing for Fatigue Damage of Steel Strands

Chen

et al. 2023

Materials

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Steel strands are widely used in structures such as bridge cables, and their integrity is critical to keeping these structures safe. A steel strand is under the working condition of an alternating load for a long time, and fatigue damage is unavoidable. It is necessary to find characteristic parameters for evaluating fatigue damage. In this study, nonlinear coefficients and attenuation coefficients were employed to evaluate fatigue damage based on magnetostrictive guided wave testing. Unlike pipe and steel wire structures, there is a phenomenon of a notch frequency when guided waves propagate in steel strands. The influence of the notch frequency on the nonlinear coefficient and attenuation coefficient is discussed. The relationship between the nonlinear coefficient, attenuation coefficient, and cyclic loading times was obtained through experiments. The amplitudes of the nonlinear coefficient and attenuation coefficient both increased with the increase in cyclic loading times. The experiments also showed the effectiveness of using these two characteristic parameters to evaluate fatigue damage.

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Importance of Fretting in Vibration Failures of Stranded Conductors

Cited by 22 publications

References 6 publications

The effect of mean stress on the fatigue behaviour of overhead conductor function of theH/wparameter

The effect of mean stress on the fatigue behaviour of overhead conductor function of theH/wparameter

A global–local approach to predict the fretting-fatigue failure of clamped aluminum powerline conductors: From mono-contact crossed wires to full conductor vibrational tests

Characteristic Parameters of Magnetostrictive Guided Wave Testing for Fatigue Damage of Steel Strands

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