Journal of Materials Science

, Volume 43, Issue 12, pp 4022–4030 | Cite as

Crack resistance curve in glass matrix composite reinforced by long Nicalon® fibres

  • Ivo DlouhyEmail author
  • Michal Kotoul
  • Tomas Vyslouzil
  • Zdenek Chlup
  • Aldo R. Boccaccini
Rees Rawlings Festschrift


Theoretical micromechanical analysis of bridged crack development at chevron-notch tip of three-point bend specimens has been applied to determine the crack resistance curve for a composite made of a glass matrix reinforced by continuous Nicalon® fibres. Fracture toughness (KIC) values were determined using the chevron-notch technique at room temperature. The theoretical predictions were based on micromechanical analysis exploiting weight functions. Detailed FEM analysis using the ANSYS package was applied to determine numerically the weight functions for orthotropic materials. Appropriate bridging models for the theoretical prediction of the R-curve behaviour typical of the investigated composite were applied together with the weight functions. Experimental observations confirmed the theoretical calculations.


Stress Intensity Factor Acoustic Emission Event Weibull Modulus Frictional Shear Stress Glass Matrix Composite 



The research was supported by the Czech Science Foundation under grant numbers 106/05/0495 and 106/06/0724 is gratefully acknowledged.


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Ivo Dlouhy
    • 1
    Email author
  • Michal Kotoul
    • 2
  • Tomas Vyslouzil
    • 3
  • Zdenek Chlup
    • 1
  • Aldo R. Boccaccini
    • 4
  1. 1.Institute of Physics of MaterialsASCRBrnoCzech Republic
  2. 2.Department of Solid MechanicsBrno University of TechnologyBrnoCzech Republic
  3. 3.Jan E. Purkyne UniversityUsti nad LabemCzech Republic
  4. 4.Department of MaterialsImperial College LondonLondonUK

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