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Residual strength analysis for notched composite laminates

놋취가 있는 복합적층판의 잔류강도 해석

Kim, Sung-Joon;Hwang, In-Hee
김성준;황인희

  • Received : 2012.01.25
  • Accepted : 2012.03.02
  • Published : 2012.03.31

Abstract

This study reviews several fracture models for predicting the residual strength of notched composite laminates. Representative experimental results on the residual strength of composite laminates containing a notch subjected to static uniaxial tensile loading have been collected from open literature. And notched strength data for T300/5208 are analyzed. The various parameters associated with the fracture models have been determined for laminates. Notched strength data sets are compared with fracture models and the applicability of the different fracture models in predicting the notched strength of composite laminates is discussed. And static tests have been performed on 2.0mm depth notched specimen. And the test results are compared with analysis models.

Keywords

Composite;Notch;Damage Tolerance;Fracture

References

  1. 14CFR Part 25
  2. MIL-HDBK-17
  3. FAA AC 25.571-D (Damage Tolerance and Fatigue Evaluation of Structure) 2011-01-13
  4. Whitney, J. M. and Nuismer, R. J., 1974, " Stress fracture criteria for laminated composites containing stress concentrations," Journal of composite materials, Vol. 8, pp.253-265 https://doi.org/10.1177/002199837400800303
  5. 김성준, 황인희, "복합재료 적층판의 기계적 체결부 해석", 한국항공운항학회지, 제 19권 4호, 2011, pp.12-17
  6. Wu, E. M., 1967, " Application of fracture mechanics to anisotropic plates," Journal of applied mechanics, pp.967-974
  7. Waddoups, M. E., Eisenmann, J. R. and Kaminski, B. E., 1971, " Macroscopic Fracture Mechanics of Advanced Composites Materials," Journal of advanced composite materials, Vol. 5, pp. 446-454 https://doi.org/10.1177/002199837100500402
  8. Poe, Jr., C. C., 1983, "A unifying strain criterion for fracture of fiberous composite laminates," Engineering Fracture Mechanics, Vol. 17, pp. 153-171. https://doi.org/10.1016/0013-7944(83)90166-2
  9. Mar, J. W. and Lin, K. Y.,"Fracture of boron/aluminum composites with discounties," Journal of Composite Materials, Vol. 11, Oct. 1977, pp. 405-421 https://doi.org/10.1177/002199837701100404
  10. Mar, J. W. and Lin, K. Y., "Fracture Mechanics Correlation for Tensile Failure of Filamentary Composites with Holes," Journal of Aircraft, Vol. 14, No. 7, pp. 703-704
  11. Rajesh, S. Vaidya, R. S. and Sun, C. T., 1997, " Fracture criterion for notched thin composite laminates," AIAA Journal, Vol. 35, No. 2
  12. Harris, C. E. and Morris D. H., " Fracture behavior of thick, laminated graphite/epoxy composites," NASA Contractor report 3784
  13. Kanninen, M. F., 1985, Popelar, C. H., "Advanced fracture mechanics," Oxford university press

Acknowledgement

Grant : 전기비행체 핵심기술연구

Supported by : 기초기술연구회