Weibull Parameters Estimation Based on Physics of Failure Model

Erik Kostandyan, John Dalsgaard Sørensen

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

1 Citationer (Scopus)

Abstract

Reliability estimation procedures are discussed for the example of fatigue development in solder joints using a physics of failure model. The accumulated damage is estimated based on a physics of failure model, the Rainflow counting algorithm and the Miner’s rule. A threshold model is used for degradation modeling and failure criteria determination. The time dependent accumulated damage is assumed linearly proportional to the time dependent degradation level. It is observed that the deterministic accumulated damage at the level of unity closely estimates the characteristic fatigue life of Weibull distribution. Methods from structural reliability analysis are used to model the uncertainties and to assess the reliability for fatigue failure. Maximum Likelihood and Least Square estimation techniques are used to estimate fatigue life distribution parameters.
OriginalsprogEngelsk
Titel62nd IIE Annual Conference & Expo 2012
Antal sider10
ForlagInstitute of Industrial Engineers
Publikationsdato2012
ISBN (Elektronisk)978-0-9837624-1-6
StatusUdgivet - 2012
Begivenhed62nd IIE Annual Conference & Expo 2012 - Orlando, Florida, USA
Varighed: 19 maj 201223 maj 2012

Konference

Konference62nd IIE Annual Conference & Expo 2012
Land/OmrådeUSA
ByOrlando, Florida
Periode19/05/201223/05/2012

Emneord

  • Reliability Estimation and Analysis
  • Degradation and Lifetime Testing
  • Physical Reliability Modeling

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