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Spectral Method in Multiaxial random fatigue

Niesłony A., Macha E.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

2005

z. 84

113-134

The algorithm for fatigue life calculation with spectral method under random multiaxial loading has been shown. The method consists in extension of the known spectral formulae of fatigue life determination under uniaxial random loading. Power spectral density function of the equivalent stress or strain, determined according to a linear criterion of multiaxial random fatigue, was used. It has been shown that the reduction of the multiaxial stress or strain state to the equivalent one can be performed directly in the frequency domain.