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Fatigue life prediction under wide band random loading
Author(s) -
PETRUCCI G.,
ZUCCARELLO B.
Publication year - 2004
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.2004.00847.x
Subject(s) - vibration fatigue , spectral density , stress (linguistics) , structural engineering , frequency domain , gaussian , materials science , time domain , domain (mathematical analysis) , computer science , engineering , fatigue testing , mathematics , mathematical analysis , physics , telecommunications , quantum mechanics , computer vision , linguistics , philosophy
In this paper, a method for the high‐cycle fatigue life prediction of components subjected to gaussian, stationary, wide band random loading is presented. It allows the user to evaluate the fatigue life of components subjected to uniaxial stress states directly from the stress power spectral density (PSD), avoiding onerous simulations in time domain. The proposed method can be applied to random stress processes having PSD of any shape, and the fatigue life predictions obtained are more accurate than that provided by most of the frequency domain techniques proposed in literature.