Digital Repository, ICF12, Ottawa 2009

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Short cracks at notches and fatigue life prediction under mode I and mode III loadings
Y. Verreman, H. Guo

Last modified: 2013-05-03


Accurate life predictions of notched components require the computation of the
short crack propagation life spent after crack initiation at the microstructure scale.
Several experimental studies have shown that the notch stress intensity factor
(NSIF) provides a unifying parameter for crack propagation lives at different
severe V-notches under axial loading. The analysis can be extended to blunt
notches by adding the crack initiation life predicted by the notch stress
concentration factor (NSCF). The present work makes a further step to test the
NSIF approach under torsional loading.

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