journal article·2020-11

Fatigue life estimation of an all aluminium alloy 1055 MCM conductor for different mean stresses using an artificial neural network

R.B. Kalombo, M.S. Pestana, R.C.S. Freire Júnior, J.L.A. Ferreira, C.R.M. Silva, L.A.C.M. Veloso, E.C.B. Câmara, J.A. Araújo

Publisher page

Abstract

Abstract This study is aimed to employ artificial neural networks (ANNs) to predict the fatigue lives of the All Aluminium Alloy Conductor (AAAC) 1055 MCM overhead conductor, considering different values of stretching load (mean stress). For ANN training, three Wohler (S-N) curves are generated for a conductor/suspension clamp assembly. Twenty-seven fatigue tests are carried out with stretching loads, related to everyday stress (EDS) of 17%, 20% and 25.6% of the conductor’s ultimate tensile strength (UTS), corresponding to mean stresses of 48 MPa, 54 MPa and 73 MPa, respectively. Constant life diagrams (at 105, 106, 107 number of loading cycles) for the AAAC 1055 MCM overhead conductor are built using the ANN. The results confirm that the ANN can accurately predict the fatigue lives of an overhead conductor for various levels of mean stress also when limited experimental data is used for training.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Metallurgy and Material Forming · Non-Destructive Testing Techniques · Fatigue and fracture mechanics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (23)

Show source-provided references
1. ONS: Operador Nacional do Sistema Elétrico. Plano da Operação Energética Pen; 2014.
2. Failure analysis of aluminum cable steel reinforced (ACSR) conductor of the transmission line crossing the Paraná River10.1016/S1350-6307(02)00021-3 ↗
3. Effect of high mean tensile stress on the fretting fatigue life of an Ibis steel reinforced aluminium conductor10.1016/j.ijfatigue.2011.03.007 ↗
4. Bestimmung der zulässigen spannungen in eisen-constructionen (Calculation of the allowable stresses in iron structures)
5. Goodman · 1899
6. A stress-strain function for the fatigue of metals
7. Differential displacement and dynamic conductor strain
8. CIGRÉ Study Committee 22, WG11, Task Force 1. Modelling of Aeolian Vibrations of Single Conductors: Assessment of The Technology. Electra. 1988;198:53-69.
9. Building of constant life diagrams of fatigue using artificial neural networks
10. Fatigue life predictions of metal matrix composites using artificial neural networks10.2478/amm-2014-0016 ↗
11. Desenvolvimento de diagramas de vida constante probabilísticos de compósitos utilizando RNA modular. Tese de doutorado – Universidade Federal do Rio Grande do Norte, Programa de Pós-Graduação em
12. Use of artificial neural network to assess the effect of mean stress on fatigue of overhead conductors
13. CIGRÉ SC22-WG04. Guide for Endurance Tests of Conductors Inside Clamps. Electra. 1985;100:77-86.
14. CIGRÉ WG 04 SC 22 – 02. Recommendations for the Evaluation of the Lifetime of Transmission Line Conductors. Electra 63; 1979.
15. EPRI. Transmission Line Reference Book: The Orange Book. Electric Power Research Institute. Palo Alto, CA; 1979.
16. IEEE. Standardization of Conductor Vibration Measurements. IEEE PAS. 1978;85(1), Trans. 31 TP65-156.
17. EPRI. Electricity Energy Storage Technology Options. Technical Update; 2010.
18. Sá HEG. Um método baseado em inteligência computacional para a geração automática de casos de teste de caixa preta. Dissertação de Mestrado – Escola Politécnica da Universidade de São Paulo; 2010.
19. Haykin S. Redes Neurais Princípios e Prática. 2ª Edição; Ed.: Bookman; 2001.
20. Aplicação das redes neurais de base radial na meteorologia
21. Mean stress effects in stress-life fatigue and the Walker equation
22. Rosa · 1974
23. CIGRÉ. Overhead conductor safe design tension with respect to aeolian vibrations. B2.11.04; 2005.