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Fatigue models for life prediction of structures under multiaxial loading with variation in time and space.

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Figure 2.5 – Finding the appropriate state for an affine load path A-B( Koutiri [ 2011 ]).
Figure 3.2 – Schematic representation of the nominal fatigue limit (ellipse arc) for two different tests: the arc is larger in the case of bending-torsion (presence of stress gradient) than in  tension-compression.
Figure 4.5 – Influence of function α in fatigue damage versus fatigue life ratio (ˆγ = 0.1)
Figure 4.6 – Influence of function ˆγ in a plot of damage versus fatigue life ratio with α = 0.8
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