AE Evaluation on Strength Characteristic and Crack Propagation Behavior of Plain Woven CFRP Composite

평직구조 CFRP 적층판 복합재의 강도 및 균열진전특성에 대한 AE 평가

  • Yun, Yu-Seong (Department of Safety Engineering, Pukyong National University) ;
  • Kwon, Oh-Heon (Department of Safety Engineering, Pukyong National University)
  • 윤유성 (부경대학교 안전공학과) ;
  • 권오헌 (부경대학교 안전공학과)
  • Published : 2004.03.01

Abstract

The mechanical strength and crack propagation of plain woven carbon fiber fabric laminate composites are examined by acoustic emission(AE). AE signals are measured during the tensile test and fracture tests. Thus, the relationship between AE signal and load-displacement curves and crack extension length are shown. Also the fracture mechanisms in terms of AE characteristics are discussed in viewpoint of crack propagation behavior.

Keywords

plain woven CFRP;crack propagation;acoustic emission

References

  1. 장경영, 이원휴, 김달중, '전파속도를 알수없는 재료에서의 AE 발생위치 온라인 측정', 대한기계학회논문집(A), 제22권, 제3호, pp. 688-694, 1998
  2. Standard test method for 'tensile properties of polymer matrix composite materials', ASlM 03039, 2000
  3. K. Kageyama, K. Nonaka, S. Shimamura and S. Fukuda, 'Fracture Tonghness and Acoustic Emission of Carbon Cloth/Epoxy Composite', JSME(A), Vol. 50, No. 454, pp. 1260-1266, 1983
  4. Standard Test Method for 'Measurement of Fatigue Crack Growth Rates', ASlM E647, 1999
  5. Ping Tan, Liyang Tong, G. P. Steven and T. Ishikawa, 'Behavior 3D orthogonal woven CFRP composites, Part I Experimental investigation', Composites: part A : app sci manu, Vol. 31, pp. 259-271, 2000 https://doi.org/10.1016/S1359-835X(99)00070-6
  6. S. Barre and M. L. Benzeggagh, 'On the use of a acoustic emission to investigate damage mechanisms in glass fiber reinforced polypropylene', Composite Science and Technology, Vol. 52, pp. 369-376, 1994 https://doi.org/10.1016/0266-3538(94)90171-6
  7. E. Jinen, Q. Q. Ni and H. W. Li, 'The behave of crack propagation and acoustic emission in CFRP fabric mano-lamina composite made in Situ SEM', JSME(A), Vol. 62, No. 602, pp. 2207-2215, 1996 https://doi.org/10.1299/kikaia.62.2207