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Titolo:
ANALYSIS OF FATIGUE DATA WITH RUNOUTS BASED ON A MODEL WITH NONCONSTANT STANDARD-DEVIATION AND A FATIGUE LIMIT PARAMETER
Autore:
PASCUAL FG; MEEKER WQ;
Indirizzi:
IOWA STATE UNIV,DEPT STAT AMES IA 50011 IOWA STATE UNIV,CTR NONDESTRUCT EVALUAT AMES IA 50011
Titolo Testata:
Journal of testing and evaluation
fascicolo: 3, volume: 25, anno: 1997,
pagine: 292 - 301
SICI:
0090-3973(1997)25:3<292:AOFDWR>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Keywords:
FATIGUE CURVES; FATIGUE DATA; FATIGUE LIFE DISTRIBUTION; FATIGUE LIMIT; MAXIMUM LIKELIHOOD METHODS; NONCONSTANT STANDARD DEVIATION; RUNOUTS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
4
Recensione:
Indirizzi per estratti:
Citazione:
F.G. Pascual e W.Q. Meeker, "ANALYSIS OF FATIGUE DATA WITH RUNOUTS BASED ON A MODEL WITH NONCONSTANT STANDARD-DEVIATION AND A FATIGUE LIMIT PARAMETER", Journal of testing and evaluation, 25(3), 1997, pp. 292-301

Abstract

The fatigue-limit model studied here contains an unknown fatigue limit parameter. Under this model, specimens tested below this fatigue-limit level of stress will never fail. The model also allows the standarddeviation of fatigue life to be a function of stress. Researchers canuse this model to describe the standard deviation and stress dependence in fatigue data. To illustrate its application, we use maximum likelihood methods to fit the model to fatigue data on a nickel base superalloy. Modern statistical methods based on likelihood ratio provide confidence intervals for the fatigue limit parameter. We also study the effect that test length has on estimation by analyzing simulated data sets based on this model. Through this simulation study, we gain insight into practical test lengths for future fatigue experiments.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 17:30:48