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http://dx.doi.org/10.5139/JKSAS.2010.38.9.862

Investigation on Strength Recovery after Repairing Impact Damaged Aircraft Composite Laminate  

Kong, Chang-Duk (조선대학교 항공우주공학과)
Park, Hyun-Bum (조선대학교 항공우주공학과)
Lee, Kyung-Sun (조선대학교 항공우주공학과)
Shin, Sang-Jun (한국항공우주산업(주))
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.38, no.9, 2010 , pp. 862-868 More about this Journal
Abstract
Development of a small scale aircraft has been carried out for the BASA(Bilateral Aviation Safety Agreement) program in Korea. This aircraft adopted all the composite structures for environmental friendly by low fuel consumption due to its lightness behavior. However the composite structure has s disadvantage which is very weak against impact due to foreign object damages. Therefore the aim of this study is focusing on the damage evaluation and repair techniques of the aircraft composite structure. The damages of composite laminates including the carbon/epoxy UD laminate and the carbon/epoxy fabric face sheets-honeycomb core sandwich laminate were simulated by a drop weight type impact test equipment and the damaged specimen were repaired using the external patch repair method after removing damaged area. The compressive strength test and analysis results after repairing the impact damaged specimens were compared with the compressive strength test and analysis results of undamaged specimens and impact damaged specimens. Finally, the strength recovery capability by repairing were investigated.
Keywords
Composite Structure; Impact damage; Compressive Strength; Repair;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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