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http://dx.doi.org/10.5139/JKSAS.2007.35.1.052

Fatigue Life Prediction of Composite Patch for Edge Cracked Aluminum Plate  

Kim, Wie-Dae (부산대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.35, no.1, 2007 , pp. 52-57 More about this Journal
Abstract
One of the hot issues in composite patching is to reduce the thermal residual stresses between composite patch and aluminum surface which occurs after bonding of composite patch. In this study, the edge crack patching is adopted for different curing cycles. For the analysis, three layer Mindlin plate elements are used, and Paris' law is adopted to predict the fatigue life of composite patch plate. The analysis results show a good agreement with the experimental fatigue life and this technique can be applied for the prediction of fatigue life of aircraft structures.
Keywords
Composite Patch; Three Layer Technique; Fatigue Life; Paris' Law;
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