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Journal of Materials Science

, Volume 41, Issue 20, pp 6599–6609 | Cite as

Intra-laminar cracking in CFRP laminates: observations and modelling

  • F. J. Guild
  • N. Vrellos
  • B. W. Drinkwater
  • N. Balhi
  • S. L. Ogin
  • P. A. Smith
Article

Abstract

Matrix cracks in composite laminates are almost invariably the first damage mechanisms in composite laminates and are the precursor to more serious forms of damage. The results presented in this paper include experimental investigations into the occurrence of these cracks in a wide range of laminates containing various angle-plies. Ultrasonic detection of these cracks using polar backscattering is found to be successful and shows promise as a method which could be applied outside the laboratory. Further work includes finite element simulations which lead to an understanding of aspects of the accumulation of damage in composite laminates.

Keywords

Composite Laminate Crack Density Matrix Crack Strain Energy Release Rate CFRP Laminate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

We are grateful to the EPSRC and dstl for funding of this work. It is a pleasure to acknowledge useful discussions with our collaborators from dstl, the National Physical Laboratory and QinetiQ.

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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • F. J. Guild
    • 2
  • N. Vrellos
    • 3
  • B. W. Drinkwater
    • 1
  • N. Balhi
    • 1
  • S. L. Ogin
    • 3
  • P. A. Smith
    • 3
  1. 1.Department of Mechanical EngineeringUniversity of BristolBristolUK
  2. 2.Department of Materials, Queen MaryUniversity of LondonLondon UK
  3. 3.School of EngineeringUniversity of SurreyGuildford, SurreyUK

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