Advanced Composite Materials

  • 제16권1호
  • /
  • Pages.11-30
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  • 2007
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  • 0924-3046(pISSN)
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  • 1568-5519(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
권호 표지

Suppression of interfacial crack for foam core sandwich panel with crack arrester

  • Hirose, Y. (Commercial Aircraft Project Engineering Division, Aerospace Company, Kawasaki Heavy Industries, Ltd) ;
  • Hojo, M. (Department of Mechanical Engineering and Science, Kyoto University) ;
  • Fujiyoshi, A. (Department of Mechanical Engineering and Science, Kyoto University) ;
  • Matsubara, G. (Strength Research Department, Technical Institute, Kawasaki Heavy Industries, Ltd)
  • 발행 : 2007.03.01
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초록

Since delamination often propagates at the interfacial layer between a surface skin and a foam core, a crack arrester is proposed for the suppression of the delamination. The arrester has a semi-cylindrical shape and is arranged in the foam core and is attached to the surface skin. Here, energy release rates and complex stress intensity factors are calculated using finite element analysis. Effects of the arrester size and its elastic moduli on the crack suppressing capability are investigated. Considerable reductions of the energy release rates at the crack tip are achieved as the crack tip approached the leading edge of the crack arrester. Thus, this new concept of a crack arrester may become a promising device to suppress crack initiation and propagation of the foam core sandwich panels.

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참고문헌

  1. A. Fawcett, J. Trostle and S. Ward, 777 empennage certification approach, in: Proc. ICCM11, Gold Coast, Australia, pp. 178-199 (1997)
  2. D. Schulz, Structural certification of Airbus fin box in composite fiber construction, in: Proc 14th International Congress of Aerospace Sciences, Toulouse, France, pp. 427-438 (1984)
  3. S. Ochi, Y. Hirose, M. Nishitani, T. Sana, T. Ito, Y. Ikeda and H. Kikukawa, Development of CFRP sandwich panel structure for transport nose component, in: Proc. 9th European-Japanese Symposium on Composite Materials, Hamburg, Germany (2004)
  4. Y. Ikeda, Y. Hirose, M. Nishitani, S. Ochi and T. Ito, Development of foam core sandwich panel structure for transport nose structure, in: Proc. 5th Gyeongnam (Korea)-Tokai (Japan) Aerospace Technology Symposium, Sacheon, Korea, pp. 67-78 (2004)
  5. L. Herbec, Technology and design development for a CFRP fuselage, Presented at 25th SAMPE Europe Conference, Paris, France (2003)
  6. M. Bruman, Fatigue crack initiation and propagation in sandwich structures, Report No. 98-29, Department of Aeronautics, Royal Institute of Technology, Sweden (1998)
  7. A. Shipsha, Failure of Sandwich Structures with Sub-interface Damage, Report 2001-13, Department of Aeronautics, Royal Institute of Technology, Stockholm, Sweden (2001)
  8. Y. Hirose, M. Konishi, K. Kosugi, M. Imuta and H. Kikukawa H, Industrial application of CFRP sandwich panel for aircraft structure, in: Proc. Conference ICCM/8, Tenerife, Canary Island, Spain, pp. 355-356 (2001)
  9. S.-E. Hellbrantt, Experience from design and production of the 72 m CFRP-sandwich corvette Visby, in: Proc.6th International Conf. Sandwich Struct., Ft. Lauderdale, Florida, pp. 15-24 (2003)
  10. Y. Hirose, K. Kosugi, M. Nishitani, H. Sashikuma, M. Imuta, H. Fukagawa and H. Kukukawa, The CFRP sandwich panel for aircraft nose structure, in: Proc. 23rd Int. Congress Aerospace Sci., Toronto, Canada, pp. 343.1-343.10 (2002)
  11. Y. Hirose, H. Fukagawa, K. Kosugi, M. Imuta and H. Kikukawa, Application of a new CFRP sandwich panel to the aircraft nose structure, in: Proc. 10th US-Japan Conf. Compos. Mater., Stanford University, USA, pp. 969-977 (2002)
  12. T. Yuki, K. Kishimoto and J. Shu, Mechanics of Interface, Baifukan Co., LTD, Tokyo, pp. 91-96 (1993)
  13. T. Ikeda and N. Miyazaki, Mixed mode fracture criterion of interface crack between dissimilar materials, Engng Fract. Mech. 59, 725-735 (1998) https://doi.org/10.1016/S0013-7944(97)00177-X
  14. T. Ikeda and C. T. Sun, Stress intensity factor analysis for an interface crack between dissimilar isotropic materials under thermal stress, Int. J. Fract. 111, 229-249 (2001) https://doi.org/10.1023/A:1012208409795
  15. W. Qian and C. T. Sun, Calculation of stress intensity factors for interlaminar cracks in composite laminates, Compos. Sci. Technol. 57, 637-650 (1997) https://doi.org/10.1016/S0266-3538(97)00006-7
  16. Y. Matsushita, The study of the interfacial fracture mechanism for GE/Epoxy with the modified couple fiber method, Master degree thesis, Dept. of Mechanical Engineering and Science, Kyoto University (2005)
  17. E. F. Ryubicki and M. F. Kanninen, A finite element calculation of stress intensity factors by a modified crack closure integral, Eng. Fract. Mech. 9, 931 (1977) https://doi.org/10.1016/0013-7944(77)90013-3
  18. S. Prasad and L. Carlsson, Debonding and crack kinking in foam core sandwich beam - I. Analysis of fracture specimens, Engng. Fract. Mech. 47, 813-824 (1994) https://doi.org/10.1016/0013-7944(94)90061-2
  19. S. Prasad and L. Carlsson, Debonding and crack kinking in foam core sandwich beam - II. Experimental investigation, Engng. Fract. Mech. 47, 825-841 (1994) https://doi.org/10.1016/0013-7944(94)90062-0