Composites Research

  • 제31권1호
  • /
  • Pages.17-22
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  • 2018
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  • 2288-2103(pISSN)
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  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
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동시 경화 장섬유 복합재료-알루미늄 혼성 구조물의 접착 특성 연구

A Study on Adhesion Characteristics of Co-cured Long Fiber Prepreg Sheet-Aluminum Hybrid Structures

  • 투고 : 2017.11.30
  • 심사 : 2018.02.14
  • 발행 : 2018.02.28
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초록

장섬유 복합재료(Long Fiber Prepreg Sheet; LFPS)는 기존 연속섬유로 구성된 섬유 강화 복합재료에 비해 우수한 생산 효율과 성형성을 가지고 있다. 섬유 강화 복합재료가 타 재료와 혼성으로 사용이 되는 경우 이종 재료의 체결을 위해 접착 방법을 사용하게 되며, 접착부의 강도는 혼성 구조물의 강도를 결정하기 때문에 복합재료 접합부의 설계는 중요하다. 본 연구에서는 동시에 경화된 LFPS와 알루미늄의 접합부를 다양한 표면처리 조건과 온도 및 수분 환경조건에 따른 접착 특성을 평가하였다. 표면처리 기법으로는 기계적인 방법인 연마와 플라즈마 표면처리를 대상으로 하였다. 다양한 표면처리가 적용된 접착 조인트는 단면 겹치기 접착 조인트를 사용하여 실험하였다. 여러 조건들에서 접착 강도가 평가되었고 가장 적절한 조건이 도출되었다.

Long Fiber Prepreg Sheet (LFPS) has the advantages of excellent production efficiency and formability for complex shapes compared to conventional continuous fiber reinforced composites. When fibrous composites are used with different materials, joining method is important because strength of the joining part determines the strength of the hybrid structure. In this study, the adhesive joint strengths of co-cured LFPS and aluminum were evaluated under various surface treatment conditions and environmental conditions (temperature and moisture conditions). Mechanical abrasion and plasma exposure were used for the surface treatment. The adhesive joints experienced various surface treatments were tested by using single lap joint specimens. Adhesive strengths under various conditions were compared and the most appropriate condition was determined.

키워드

참고문헌

  1. Bae, J.H., Han, M.G., and Chang, S.H., "Formability of Complex Composite Structures with Ribs Made of Long Carbonfiber-reinforced Prepregs," Composite Structures, Vol. 168, 2017, pp. 56-64. https://doi.org/10.1016/j.compstruct.2017.02.033
  2. Cai, H.J., Bashar, M.T., and Picot, J.J.J., "Thermal and Mechanical Anisotropy in Compression Molded Carbon Fiber/resin Composites," Polymer Composites, Vol. 26, No. 5, 2005, pp. 684-688. https://doi.org/10.1002/pc.20138
  3. Wan Y., and Takahashi, J., "Tensile and Compressive Properties of Chopped Carbon Fiber Tapes Reinforced Thermoplastics with Different Fiber Lengths and Molding Pressures," Composites: Part A: Applied Science and Manufacturing, Vol. 25, 2016, pp.271-281.
  4. Son, D.S., Bae, J.H., and Chang, S.H., "A Study on the Boding Strength of Co-cured T800/epoxy Composite-aluminum Single Lap Joint According to the Forming and Additional Pressures," Composite Research, Vol. 24, No. 5, 2011, pp. 23-28. https://doi.org/10.7234/kscm.2011.24.5.023
  5. Encinasa, N., Oakleyb, B.R., Belcherc, M.A., Blohowiakc K.Y., Dillinghamb, R.G., Abenojara, J., and Martíneza M.A., "Surface Modification of Aircraft Used Composites for Adhesive Bonding," International Journal of Adhesion and Adhesives, Vol. 50, 2014, pp. 157-163. https://doi.org/10.1016/j.ijadhadh.2014.01.004
  6. Kim, J.G., Choi, I.B., and Lee, D.G., "Contact Angle and Wettability of Hybrid Surface-treated Metal Adherends," Journal of Adhesion Science and Technology, Vol. 27, No. 7, 2013, pp. 794-810. https://doi.org/10.1080/01694243.2012.727154
  7. Lee, D.G., and Cho, D.H., "Prediction of the Tensile Load Capability of Co-cured Steel-composite Tubular Single Lap Joints Considering Thermal Degradation," Journal of Composite Materials, Vol. 34, No. 8, 2000, pp. 689-722. https://doi.org/10.1177/002199830003400804
  8. Mubashar, A., Ashcroft, I.A., Critchlow, G.W., and Crocombe, A.D., "Moisture Absorption-desorption Effects in Adhesive Joints," Journal of Adhesion and Adhesives, Vol. 29, No. 8, 2009, pp. 751-760. https://doi.org/10.1016/j.ijadhadh.2009.05.001

피인용 문헌

  1. 복합소재 사출인서트 알루미늄 바 카울크로스멤버 표면처리 특성에 따른 접합강도 분석 연구 vol.33, pp.6, 2018, https://doi.org/10.7234/composres.2020.33.6.360