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Home » Preventing Fretting Fatigue in Blade Dovetail Roots by Modifying Geometry of Contact Surfaces

Preventing Fretting Fatigue in Blade Dovetail Roots by Modifying Geometry of Contact Surfaces

August 1, 2013
Dovetails, gears and splines have been widely used in aero engines where fretting is an important failure mode due to loading variation and vibration during extended service. Failure caused by fretting fatigue becomes a prominent issue when service time continues beyond 4,000 hours. In some cases, microslip at the edge of a contact zone can reduce the life by as much as 40–60 percent.
Design Components Failure Fatigue Gears Shafts Technical Articles
KEYWORDS failure fatigue fretting
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