Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
권호 표지

Characteristics of Elastics Waves of Fiber-Reinforced Plastic with Localized Heat Damage

국부 열손상을 받은 복합재료의 탄성파특성

  • Published : 2002.08.01
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Abstract

Fiber-reinforced composites are extensively used in electronic, ship and aerospace applications due to their high strength and high toughess. In these applications, they are often subjected to localized heat damage due to various sources. In order to ensure their reliability, it is important to predict their residual properties using nondestructive evaluation thchniques. Fabric fiber composite specimens were manufactured with six layers of the glass-fiber prepreg and the carbon-fiber prepreg, respectively. The specimens were subjected to a localized heat damage using a heated copper tip with a diameter of 10mm at 35$0^{\circ}C$(CFRP) and 30$0^{\circ}C$(GFRP), respectively. The specimens were then subjected to tension tests while acoustic emission (AE) activities of specimens were collected. The AE activity of all specimens showed three types of distinct frequency regions. Those are matrix cracking, failure of the fiber/matrix interface and fiber breakage.

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References

  1. 대한조선학회지 v.39 no.1 국내 해양레저와 레저선박 산업의 현황 및 전망 김상현;반석호
  2. 한국복합재료학회지 v.14 no.1 음향방출법을 이용한 Glass Fiber/PET 복합재료의 손상평가 김상태;김덕윤
  3. 비파괴검사학회지 v.21 no.1 시간-주파수 해석법에 의한 CFRP의 파괴거동 남기우;안석환;이상기;김현수;문창권
  4. 한국해양공학회지 v.16 no.2 CFRP적층 형태에 따른 파괴시 음향방출 신호특성 남기우;문창권
  5. 한국강구조학회 논문집 v.13 no.6 노후화된 교량 바닥판 대체용 복합재료 교량 바닥판의 거동에 관한 실험적 연구 장석윤;지효선;손병직
  6. 대한기계학회논문집 A권 v.24 no.5 초음파와 음향방출법을 이용한 복합재료 직교적층판의 점진적 손상과정에 관한 연구 전흥재;I.M. Daniel
  7. Applied Spectroscopy v.49 Nondestructive Inspection of Graphite-Epoxy Composites for Heat Damage Using Laser-Induced Fluorescence Fisher, W.G.;Storey, J. M.E.;Sharp, S.L.;Janke, C.J.;Wachter, E.A. https://doi.org/10.1366/0003702953965263
  8. The Materilas Information Society Advanced Polymer Composites: Principle and Applications Jang, B.Z.
  9. Nondestructive Testing of Fiber Reinforced Plastic Composites v.2 Ultrasonic Nondestructive Evaluation of Advanced Composite Henneke, E.G.;J. Summerscales(ed.)
  10. Composite Science and Technology v.52 Analysis of Damage Mechanism in a Centrally Notched Glass-Fiber/Epoxy Plate Laksimi. A.;Gong. X.L.;Benzeggagh. M.L. https://doi.org/10.1016/0266-3538(94)90010-8
  11. Zairyo v.38 Fracture Mechanics of Fabric Glass Laminates Plate Sun, F.;Iwamoto, M.;Jinen, E.;Sizuki, M.
  12. Progress in Acoustic Emission Ⅳ Uenoya, T.;K. Yamaguchi(ed.)(et al.)