International Journal of Fracture

, Volume 139, Issue 3–4, pp 529–536 | Cite as

Effect of Off – Axis Matrix Cracking on Stiffness of Symmetric Angle-Ply Composite Laminates



Matrix cracking models developed for cross-ply composite laminates cannot easily be applied to more complicated geometries. In this paper a detailed analysis of the effect of matrix cracking on the longitudinal Young’s Modulus of a [0/45]s plate under uniaxial tension is attempted. The theoretical approach, based on a semi-analytical generalized plane strain model, is compared to experimental data obtained by microscopic strain measurements on a fiber sensor using the technique of laser Raman Spectroscopy. The experimental results are in a good agreement with theoretical stiffness degradation predictions obtained using the semi-analytical model.


composite materials matrix cracking stiffness reduction Raman spectroscopy generalized plane strain model 


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Copyright information

© Springer 2006

Authors and Affiliations

  • D. G. Katerelos
    • 1
  • L. N. McCartney
    • 2
  • C. Galiotis
    • 1
    • 3
  1. 1.Foundation of Research and Technology HellasInstitute of Chemical Engineering and High Temperature Chemical ProcessesPatrasGreece
  2. 2.NPL Materials CentreNational Physical LaboratoryTeddington, MiddlesexUK
  3. 3.Department of Materials ScienceUniversity of Patras

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