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http://dx.doi.org/10.5139/JKSAS.2009.37.7.642

Prediction of Fretting Fatigue Life for Lap Joint Structures of Aircraft  

Kwon, Jung-Ho (울산대학교 항공우주공학과)
Joo, Seon-Yeong (울산대학교 항공우주공학과 대학원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.37, no.7, 2009 , pp. 642-652 More about this Journal
Abstract
Most of lap jointed aircraft structures encounter the fretting damages, which provoke fretting cracks prematurely and lead to significant reduction of fatigue life. In the case of ageing aircrafts especially, this fretting fatigue problem is a fatal threat for the safety and airworthiness. Recently, as the service life extension program(SLEP) of ageing aircrafts has become a hot issue, the prediction of fretting fatigue life is also indispensable. On these backgrounds, a series of experimental tests of fretting fatigue on bolted lap joint specimens, were performed. And the fretting crack initiation and propagation life of each specimen were evaluated using existing and newly proposed prediction models with the fretting parameters obtained from the FEA results for elasto-plastic contact stress analyses. The validations of prediction models were also discussed, comparing the prediction results with experimental test ones.
Keywords
Fretting Fatigue; Life Prediction; Elasto-plastic Contact Stress; Lap Joint Structure;
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Times Cited By KSCI : 1  (Citation Analysis)
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