DOI QR코드

DOI QR Code

FGMs의 최적화 제조와 DIC 평가

Optimized Fabrication of FGMs and DIC Evaluation

  • 권오헌 (부경대학교 안전공학과)
  • Kwon, Oh-Heon (Department of Safety Engineering, Pukyong National University)
  • 투고 : 2011.06.15
  • 심사 : 2011.10.05
  • 발행 : 2011.10.31

초록

Recently new technological development needs the advances in the fields of new materials. The most advanced design is not useful if new material's performance is not realized adequately for bearing the service loads and conditions. FGMs suggests the reasonable solution for the those requirements because of its wide range microstructure and the continuous constitutions. It's especially good for the heat-resisting components, piezoelectricity and aerocraft fields. However the fabrication and its experimental estimation methods have not been established because of its various freedom of material's properties. Therefore it is necessary to develope the fabrication method and estimation of strength and deformation. The experiments are conducted under a four point flexural test. According to results, this study shows that FGMs is well fabricated and the deformation and strain fields are expressed very well by digital image correlation method.

키워드

참고문헌

  1. M. Arai , K. Matsuhitaka, K. Sugimoto and M. Endo, "Mode I and Mode II interlaminar fracture toughness of CFRP laminates toughened by carbon nano fiber", JSME Annual Meeting, pp. 667-668, 2007.
  2. H. P. Xiong, A. Kawasaki. Y. S. Kang and R. Watanabe, "Experimental study on heat insulation performance of functionally graded metal/ceramic coatings and their fracture beghavior at high surface temperature", Surface & coatings technology, Vol. 194, pp. 203-214, 2005. https://doi.org/10.1016/j.surfcoat.2004.07.069
  3. M. Sasaki and T. Hirai, "Fabrication and properties of functionally gradient materials", Journal of the ceramic society of Japan, Vol. 99, pp. 1002-1013, 1991. https://doi.org/10.2109/jcersj.99.1002
  4. S. R .Mcneil, W. Peters, M. A. Sutton, "The estimation of stress intensity factor by digital image correlation", Engineering fracture mechanics, Vol. 28, pp. 101-112, 1987. https://doi.org/10.1016/0013-7944(87)90124-X
  5. R. K. Muller and L.R. Saackel, "Complete automatic analysis of photoelastic fringes", Experimental mechanics, Vol. 19, pp. 245-251, 1979. https://doi.org/10.1007/BF02328653
  6. F. P. Chiang, "Moire methods of strain analysis", Experimental mechanics, Vol. 19, pp. 290-308, 1979. https://doi.org/10.1007/BF02324290
  7. P. Rastogi, "Principle of holographic interferometry and speckle metrology", Photomechanics, Springer, pp. 103-145, 1999.
  8. Standard Test Method for "Flexural strength of advanced ceramics at ambient temperature", ASTM C 1161, 2006.
  9. D. L ecompte, A. Smith and S. Bossuyt, "Quility assessment of speckle patterns for digital image correlation", Optics and lasers engineering, Vol. 44, pp. 1132-1145, 2006. https://doi.org/10.1016/j.optlaseng.2005.10.004
  10. F. M. Sanchez-Arevaldo and G. Pulos, "Use of digital image correlation to determine the mechanical behavior of materials", Materials characterization, Vol. 59, pp. 1572-1579, 2008. https://doi.org/10.1016/j.matchar.2008.02.002
  11. A. Giachetti, "Matching techniques to compute image motion", Image vision computers, Vol. 18, pp. 247- 260, 2000. https://doi.org/10.1016/S0262-8856(99)00018-9
  12. A. C. Chapra and R. P. Candae, "Numerical methods for engineers", McGraw-Hill, pp. 157-159, 1998.