6533b85cfe1ef96bd12bd4de
RESEARCH PRODUCT
Fatigue life under non-Gaussian random loading from various models
Jean-françois VittoriE. MachaAlexis BanvilletTadeusz ŁAgodaAdam NiesłonyThierry Palin-lucsubject
EngineeringGaussianProbability density function02 engineering and technologyIndustrial and Manufacturing EngineeringMécanique: Vibrations [Sciences de l'ingénieur]symbols.namesakeMécanique: Génie mécanique [Sciences de l'ingénieur]0203 mechanical engineeringRandom loadingApplied mathematicsGeneral Materials ScienceTime domainMécanique: Mécanique des structures [Sciences de l'ingénieur]Spectral methodStrain energyMécanique [Sciences de l'ingénieur]business.industryMechanical Engineering[SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph]Strain energy density functionFatigue life calculationStructural engineering[SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]021001 nanoscience & nanotechnology[SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of the structures [physics.class-ph][SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph]020303 mechanical engineering & transportsMechanics of Materials[SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph]Modeling and SimulationFrequency domainsymbols0210 nano-technologyCycle countSpectral methodbusinessRainflow algorithmVibration fatiguedescription
Fatigue test results on the 10HNAP steel under constant amplitude and random loading with non-Gaussian probability distribution function, zero mean value and wide-band frequency spectrum have been used to compare the life time estimation of the models proposed by Bannantine, Fatemi–Socie, Socie, Wang–Brown, Morel and Łagoda–Macha. Except the Morel proposal which accumulates damage step by step with a proper ethodology, all the other models use a cycle counting method. The rainflow algorithm is used to extract cycles from random histories of damage parameters in time domain. In the last model, where a strain energy density parameter is employed, additionally spectral method is evaluated for fatigue life calculation in the frequency domain. The best and very similar results of fatigue life assessment have been obtained using the models proposed by Socie and by Łagoda–Macha, both in time and frequency domains for the last one. With the support of the Commission of the European Communities under the FP5, GROWTH Programme, contract No. G1MA-CT-2002-04058 (CESTI).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-04-01 |