Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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Structural Characterization of Repaired Sandwich Composite Laminates

샌드위치 복합재의 보수 후 특성평가

  • 김정석 (한국철도기술연구원, 기존철도기술개발사업단) ;
  • 이재헌 (서울산업대학교, 기계공학과) ;
  • 정성균 (서울산업대학교, 기계공학과) ;
  • 김승철 (한국철도기술연구원, 기존철도기술개발사업단) ;
  • 서승일 (한국철도기술연구원, 기존철도기술개발사업단)
  • Published : 2007.05.17
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Abstract

This paper explains compressive behaviors of sandwich composite laminates with adhesively bonded patches. The sandwich composite laminate is used for a train carbody structure and is of an aluminum honeycomb core and CF1263 woven fabric carbon/epoxy faces. The sandwich composite laminates were damaged by low velocity impact. The damaged sandwich composite laminate was repaired using scarf repair method. Then, the strength restoration of it was assessed by compressive test. From the test, it could be known that the compressive strength was restored up to 91% of undamaged one.

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