Fracture mechanics analysis for a mooring system subjected to Gaussian load processes

Dirlik and Tovo-Benasciutti Spectral Methods in Vibration Fatigue: A Review with a Historical Perspective

“…For fatigue crack growth, it seems that the current literature on spectral-based crack propagation models is not so vast [6][7][8][9][10], so this topic may represent quite a promising research field; a starting point may be, for example, the development of spectral methods to include the effect of overloads.…”

“…Fatigue life calculation methods based on frequency domain information of a random loading are now well established, and suitable commercial software is commonly available (e.g., nCode DesignLife, Simulia Fe-safe, CAEfatigue, Ansys Random Vibration Fatigue). Among frequency domain methods, one should also number those approaches in which spectral methods are combined with crack growth models with the aim to estimate fatigue life under random loadings [6][7][8][9][10]. Crack growth models, though relevant for the fatigue durability field, are not included in the following discussion, which is concerned with S/N based approaches in frequency domain.…”

Sensitivity and uncertainty analysis for structural health monitoring with crack propagation under random loads: A numerical framework in the frequency domain

“…Considering the particular case of crack propagation, an equivalent stress amplitude can be obtained from a random stress process with zero mean according to the equation 13,19 :…”

“…Recently, Dirlik and Benasciutti 16 pointed out the current small literature available concerning spectral-based methods and crack propagation. 13,[17][18][19][20] In addition, Datteo et al 7 indicated the lack of uncertainty assessment in the SHM literature. This paper thus attempts to promote the discussion on both topics and partially fill these gaps by proposing a framework for the sensitivity and uncertainty analysis of beam-like structures concerning crack propagation under spectral loads.…”