A study on the prediction of fretting fatigue behavior

✍ Scribed by Ki-Su Shin; Geun Won Kim

• Book ID: 104089707
• Publisher: Elsevier
• Year: 2011
• Tongue: English
• Weight: 707 KB
• Volume: 10
• Category: Article
• ISSN: 1877-7058
• DOI: 10.1016/j.proeng.2011.04.111

✦ Synopsis

Fretting fatigue generally leads to the degradation of the fatigue strength of a material due to cyclic micro-slip between two contacting materials. Fretting fatigue is regarded as an important issue in designing aerospace structures.

The primary goal of this study was to characterize the fretting fatigue crack initiation behavior in the presence of plasticity. Experimental tests were performed using pad configurations involving elastic-plastic deformations. To calculate stress distributions under elastic-plastic fretting fatigue conditions, FEA was also performed. The critical distance methods, which are commonly used in notch analysis, were applied to the fretting fatigue problem.

In conclusion, the effective strain range method when used in conjunction with the SMSSR parameter showed a good correlation of data points between the pad configurations involving elastic and elastic plastic deformations.