Characterizing Pure Mode I Delamination Using Multidirectional DCB Specimens for Glass/Epoxy

  • X. J. Gong
  • M. Benzeggagh
  • A. Laksimi
  • J. M. Roelandt


In order to etablish DCB as a general quantitative method, an advanced understanding on this configuration is necessary. Using different angle ply laminates of glass/epoxy, we have tried to explain the effect of lay-up of laminates upon the pure mode I critical energy release rate. The results obtained revealed that in the multidirectional DCB specimen, three dimentional effects are too strong to be negnected. Application of the compliance method requires a more exact theoretical analysis. GIc measured in this study seems indenpendent of specimen rigidity, but varies with curvature couplings ky/kx and kxy/kx.


Acoustic Emission Fiber Orientation Double Cantilever Beam Pure Mode Initial Crack Length 
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Copyright information

© Elsevier Science Publishers Ltd 1990

Authors and Affiliations

  • X. J. Gong
    • 1
  • M. Benzeggagh
    • 1
  • A. Laksimi
    • 1
  • J. M. Roelandt
    • 1
  1. 1.Université de Technologie de CompiègneCompiègneFrance

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