26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS 2008-7.4.1

STATIC AND FATIGUE ANALYSIS OF AN UPPER WING SKIN WITH EXFOLIATION CORROSION

G. Renaud, M. Liao, A. Uebersax*, C. Huber*
NRC, Canada; *RUAG Aerospace, Switzerland

Keywords: exfoliation corrosion, life prediction, Al 7075, FEA, upper wing skin

The modeling aspects of a collaborative research program on the effects of exfoliation corrosion on a wing structural integrity are presented. Finite element and fatigue strength analyses were carried out to quantify the impact of exfoliation at fastener holes on an upper wing skin. Corrosion maintenance recommendations are provided.

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