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Applied Composite Materials

, Volume 18, Issue 3, pp 253–269 | Cite as

On the Distribution of Delamination in Composite Structures and Compressive Strength Prediction for Laminates with Embedded Delaminations

  • Fu Huimin
  • Zhang YongboEmail author
Article

Abstract

In this study, large numbers of aircraft composite structures were inspected, and the distribution of delamination sizes and though thickness positions in the composite laminates are investigated. An experiment is conducted to probe into the influence of delamination sizes and through thickness positions on the compressive strengths of laminates with single embedded circular delamination, with the most dangerous delamination sizes and positions defined from the distribution. Furthermore, a shell model is established for compressive strength prediction, with delamination propagation assessed using a mixed mode criterion. The finite element (FE) prediction comes out to be in good agreement with the experimental measurements, for the predicted compressive strengths stand within 10% error of experimental results. It was observed that the compressive strength was highly influenced by the delamination size, while the through thickness position of delamination did not have significant effect on the compressive strength.

Keywords

Composite structure Distribution Prediction Compressive strength Finite element analysis 

References

  1. 1.
    Chai, H., Babcock, C.A., Knauss, W.G.: One dimensional modeling of failure in laminated plates by delamination buckling. Int. J. Solids Struct. 17(1), 1069–1083 (1981)CrossRefGoogle Scholar
  2. 2.
    Lachaud, F., Lorrein, B., Michel, L., Barriel, R.: Experimental and numerical study of delamination caused by local buckling of thermoplastic and thermoset composites. J. Compos. Sci. Technol. 58, 727–733 (1998)CrossRefGoogle Scholar
  3. 3.
    Davidson, B.D., Krafchak, T.M.: A comparison of energy release rates for locally buckled laminates containing symmetrically and asymmetrically located delaminations. J. Compos. Mater. 29, 700–713 (1995)CrossRefGoogle Scholar
  4. 4.
    Hua, N., Fukunaga, H., Sekine, H., Mohammad Ali, K.: Compressive buckling of laminates with an embedded delamination. Compos. Sci. Technol. 59, 1247–1260 (1999)CrossRefGoogle Scholar
  5. 5.
    Wagner, W., Gruttman, F., Sprenger, W.: A finite element formulation for the simulation of propagating delaminations in layered composite structures. Int. J. Numer. Methods Eng. 51, 1337–1359 (2001)CrossRefGoogle Scholar
  6. 6.
    Tafreshi, A., Oswald, T.: Global buckling behavior and local damage propagation in composite plates with embedded delaminations. Int J Pressure Vessels Piping 80, 9–20 (2003)CrossRefGoogle Scholar
  7. 7.
    Hwang, S.F., Mao, C.P.: Failure of delaminated carbon/epoxy composite plates under compression. J. Compos. Mater. 35, 1634–1653 (2001)CrossRefGoogle Scholar
  8. 8.
    Short, G.J., Guild, F.J., Pavier, M.J.: The effect of delamination geometry on the compressive failure of composite laminates. Compos. Sci. Technol. 61, 2075–2086 (2001)CrossRefGoogle Scholar
  9. 9.
    De Borst, R., Remmers, J.C.: Computational modeling of delamination. J Compos Sci Technol 66, 723–730 (2006)CrossRefGoogle Scholar
  10. 10.
    Suemasu, H., Irie, T., Ishikawa, T.: Compressive behavior of laminated composites with multiple delaminations. Canada–Japan Workshop Compos Mater (2004)Google Scholar
  11. 11.
    Borg, R., Nilsson, L., Simonsson, K.: Modeling of delamination using a discretized cohesive zone and damage formulation. Comp Sci Tech 62, 1299–1314 (2002)CrossRefGoogle Scholar
  12. 12.
    Cappello, F., Tumino, D.: Numerical analysis of composite plates with multiple delaminations subjected to uniaxial buckling load. Compos. Sci. Technol. 66, 264–272 (2006)CrossRefGoogle Scholar
  13. 13.
    Majima, O., Suemasu, H.: An interface element with continuous traction to analyze delamination propagation. Adv. Compos. Mater 14(2), 165–180 (2005)CrossRefGoogle Scholar
  14. 14.
    Aoki, Y., Suemasu, H., Ishikawa, T.: Damage propagation in CFRP laminates subjected to low velocity impact and static indentation. Adv. Compos. Mater 16(1), 45–61 (2007)CrossRefGoogle Scholar
  15. 15.
    Suemasu, H., Sasaki, W., Ishikawa, T., Aoki, Y.: A numerical study on compressive behavior of composite plates with circular delaminations considering delamination propagation. J Compos Sci Technol 68, 2562–2567 (2008)CrossRefGoogle Scholar
  16. 16.
    Aslan, Z., Sahin, M.: Buckling behavior and compressive failure of composite laminates containing multiple large delaminations. J Compos Struct 89, 382–390 (2009)CrossRefGoogle Scholar
  17. 17.
    Wang, J.T., Raju, I.S., Sleight, D.W.: Composite skin-stiffener debond analysis using fracture mechanics approach with shell elements. Compos. Eng. 5(3), 277–296 (1995)CrossRefGoogle Scholar
  18. 18.
    Glaessgen, E.H., Riddell, W.T., Raju, I.S.: Effect of shear deformation and continuity on delamination modeling with plate elements.AIAA-98-2022, (1998)Google Scholar
  19. 19.
    Benzeggagh, M., Kenane, M.: Measurement of mixed-mode delamination fracture toughness of unidirectional glass/epoxy composites with mixed-mode bending apparatus. Composite Science and Technology 56, 439–449 (1996)CrossRefGoogle Scholar
  20. 20.
    Rybicki, E.F., Kanninen, M.F.: A finite element calculation of stress intensity factors by a modified crack closure intergral. Eng. Fract. Mech. 9, 931–938 (1977)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.Research Center of Small Sample TechnologyBeijing University of Aeronautics and AstronauticsBeijingChina

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