Cover
Vol. 9 No. 1 (2009)

Published: June 30, 2009

Pages: 17-24

Original Article

Finite Element Evaluation of Mode I Stress Intensity Factor of Composite Material Under Domain Loading

Abstract

In this paper, a finite element method program under domain loading and plain strain conditions is developed and applied in evaluation of the stress intensity factor in opening mode (K1) in two dimensions crack problems. Two types of crack problems analyzed and verified: first, cracked rotating disc made from bi-directional fiber reinforced material composite, second crack blade made from bi-directional fiber reinforced metal matrix composite. It is found that the finite element method under domain loading is a good tool for the analysis of composite material. The simulation is accurate in comparison with that obtained from extrapolation method. The stress intensity factor for fiber reinforced metal matrix composite is larger when obtained from fiber-reinforced material under same condition.

References

  1. Dharan C. K. H., "Fracture mechanics of composite material", Journal of Engineering Materials and Technology, vol. 100, pp. 233-246, 1978.
  2. Shiratori E., Ikegami K. and Shingo T., "Rotating strength of laminated composite discs", Bulletin of the JSME, vol. 23, no. 180, pp. 822-830, 1980.
  3. Ikegami, K. and Shiratori, E., "Study on the high speed rotating disc reinforced by laminating and hoop winding method", Bulletin of the JSME, vol. 24, no. 189, pp. 501-506, 1983.
  4. O-Il Byon and Masuji Uemura, "Optimum lamination in fiber reinforced flywheel taking account of the curing stresses", Report of the Research Institute of Industrial Technology, Nihon University, Number 9, 1979.
  5. Genta, G., Gola, M. and Guglitta, A., "Axisymmetric computation of the stress distribution in orthotropic rotating disc", Int. J. Mech. Sci., vol. 24, no. 1, pp. 21-26, 1983.
  6. Onur S., "Stress analysis of a thermoplastic composite disc under uniform temperature distribution", J. of Thermoplastic Composite Materials, vol. 19, pp. 61-77, 2006.
  7. Shramh, K. M., "Domain loading fracture mechanics analysis of welding components using finite element method", M.Sc. thesis, Basrah University, Iraq, 1999.
  8. Martin Grayson, "The Encyclopedia of Composite Materials and Components", John Wiley and Sons Inc., 1983.
  9. Brain N. Cox and David B. Marshall, "Crack initiation in fiber reinforced brittle laminates", J. Am. Ceram. Soc., Vol. 79, 1996.