Fundamental investigations of electrical conductor fretting fatigue

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

doi:10.1016/0301-679x(95)00074-e

Cited by 51 publications

(22 citation statements)

References 13 publications

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“…First, the cable interior may undergo fretting fatigue damage, which is a major factor that contributes to internal component failure and, in the worst case, the breakage of the entire cable [3,4]. Second, the complexity of the cable's umbilical geometry can make it difficult to accurately predict the axial stiffness and bending stiffness of the cable.…”

Section: Introductionmentioning

confidence: 99%

Parametric study of the dynamic motions and mechanical characteristics of power cables for wave energy converters

2017

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A case study of a point-absorber wave energy converter (WEC) system is presented. The WEC system forms an array, with several WECs located around a central hub to which they are each connected by a short, freehanging power cable. The objective of the study is to analyse the dynamic characteristics and estimate the fatigue life of the power cable which is not yet in use or available on the commercial market. Hence, a novel approach is adopted in the study considering that the power cable's length is restricted by several factors (e.g., the clearances between the service vessel and seabed and the cable), and the cable is subject to motion and loading from the WEC and to environmental loads from waves and currents (i.e., dynamic cable). The power cable's characteristics are assessed using a numerical model subjected to a parametric analysis, in which the environmental parameters and the cable's design parameters are varied. The results of the numerical simulations are compared and discussed regarding the responses of the power cables, including dynamic motion, curvature, cross-sectional forces, and accumulated fatigue damage. The effects of environmental conditions on the long-term mechanical life spans of the power cables are also investigated. Important cable design parameters that result in a long power cable (fatigue) service life are identified, and the cable service life is predicted. This study contributes a methodology for the first-principle design of WEC cables that enables the prediction of cable fatigue life by considering environmental conditions and variations in cable design parameters.

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Section: Introductionmentioning

confidence: 99%

Parametric study of the dynamic motions and mechanical characteristics of power cables for wave energy converters

2017

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“…Zhou et al [10] presented experimental test results obtained from tests on single wires under conditions simulating a typical conductor-clamp contact. Zhou et al [11] summarized a general fretting fatigue analysis of their previous work. They concluded that fretting behaviour and fretting fatigue strength are very sensitive issues for conductor bending fatigue.…”

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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Fundamental investigations of electrical conductor fretting fatigue

Cited by 51 publications

References 13 publications

Parametric study of the dynamic motions and mechanical characteristics of power cables for wave energy converters

Parametric study of the dynamic motions and mechanical characteristics of power cables for wave energy converters

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

New fatigue device for testing cables: Design and results

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