Failure analysis of dovetail assemblies under fretting load

摘要: Abstract Fretting wear and subsequent fatigue are the damage processes caused by micro slip under high cycle (HCF) loading between contacting structural members. has become recognized as a major failure mode in aircraft, which can reduce life of structure much 40–60% certain conditions. There two keys to evaluating fretting dovetail assemblies: one is determining stress gradients at edge contact zone complex means numerical methods, especially finite element method (FEM); other finding suitable parameters correlate with improve predictive accuracy.