Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on the Fracture Toughness Improvement of Surface-treated CFRP and Aluminum Composites

표면처리된 CFRP와 알루미늄 복합재료의 파괴인성 향상에 대한 연구

  • 이경엽 (경희대학교 테크노공학대학) ;
  • 김만태 (경희대학교 기계공학과 대학원) ;
  • 최낙삼 (한양대학교 기계산업공학과)
  • Published : 2003.04.01
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Abstract

In this study, the effect of surface treatment of CFRP and aluminum on the fracture toughness of CFRP/aluminum composites was investigated. CFRP was surface-treated by Ar$^{+}$ ion beam under oxygen environment, and the aluminum was surface-treated by DC plasma. CFRP was adhesively bonded to aluminum using the secondary bonding procedure. Cracked lap shear specimens were used to determine fracture toughness. Three cases of cracked lap shear specimens were made depending on the surface treatment. The values of fracture toughness of three cases were compared to each other It was found that the fracture toughness of ion beam-treated CFRP/aluminum composites was almost 72 % higher than that of unrented CFRP/aluminum composites. The fracture toughness of CFRP/plasma-treated aluminum composites was 50 % higher than that of untreated CFRP/aluminum composites.s.

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References

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