Some considerations regarding the fatigue cracks producing pitting wear of gears
Keywords:fatigue crack, gear, crack nucleation, small length cracks, stresses field, fatigue cracks propagation
In this article some aspects of the fatigue cracks that have the consequence of pitting wear appearance on the spur gears are presented. The main mechanisms leading to the fatigue cracks, crack nucleation, propagation of cracks of small length, as well as the propagation of cracks on long lengths, respectively, will also be analyzed. The stress field, the growth rate as well as the spread of fatigue cracks will be considered.
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