Reliability of Wind Turbine Components-Solder Elements Fatigue Failure

Erik Kostandyan, John Dalsgaard Sørensen

Publikation: Bidrag til tidsskriftKonferenceartikel i tidsskriftForskningpeer review

13 Citationer (Scopus)


The physics of failure for electrical components due to temperature loading is described. The main focus is on crack propagation in solder joints and damage accumulation models based on the Miner’s rule. Two models are proposed that describe the initial accumulated plastic strain depending on the temperature mean and temperature range. Constant terms and model errors are estimated. The proposed methods are useful to predict damage values for solder joint in power electrical components. Based on the proposed methods it is described how to find the damage level for a given temperature loading profile. The proposed methods are discussed for application in reliability assessment of Wind Turbine’s electrical components considering physical, model and measurement uncertainties. For further research it is proposed to evaluate damage criteria for electrical components due to the operational temperature fluctuations within Wind Turbines
TidsskriftProceedings of the Reliability and Maintainability Symposium
Antal sider7
StatusUdgivet - 2012
BegivenhedThe Annual Reliability and Maintainability Symposium: Securing Tomorrow's Future with Reliability and Maintainability - Reno, Nevada, Reno, Nevada, USA
Varighed: 23 jan. 201226 jan. 2012
Konferencens nummer: 58


KonferenceThe Annual Reliability and Maintainability Symposium
LokationReno, Nevada
ByReno, Nevada


  • Wind Turbine Reliability
  • SnAg Fatigue and Reliability
  • Structural Reliability

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