Abstract: The initiation and
propagation of fatigue cracks from notches have been studied in
a high strength aluminium alloy 7010-T736. The experimental
results suggest that a modified effective stress intensity
factor, which is described by introducing function of
microstructure scale, notch geometry and short crack length, is
applicable to predict initiation of fatigue crack emanating from
notches and fatigue crack propagation within the notch stress
field.
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