Author(s): M.A. da Fonte & M.M. de Freitas
Many power transmission devices run under load bending combined with steady
After crack initiation the crack front profile usually grows with a semi-
elliptical surface shape.
During the rotation of a shaft, the crack growth of a
semi-elliptical surface crack depends on the two crack angular positions: one is
when the load bending direction is perpendicular to semi-elliptical crack front
profile; another one is an oblique position whenever one of two external points
are on the load bending direction.
The present study is based on 3D finite
elements in order to obtain Stress Intensity Factors (SIF) for semi-elliptical
surface cracks, taking into account the two critical angular positions of the crack
front when a round bar or a shaft rotate in operatin...
Size: 920 kb
Paper DOI: 10.2495/DM000461
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