Journal of Materials Science

, Volume 29, Issue 22, pp 6033–6040 | Cite as

Interface contribution to the SiC-titanium and SiC-aluminium tensile strength prediction

Part I Interface characterization by fragmentation tests
  • L. Molliex
  • J. -P. Favre
  • A. Vassel
  • M. Rabinovitch


Fragmentation tests of single SiC filaments embedded in an aluminium (1050 and 5083 alloys) or a titanium (Ti-6Al-4V) matrix have been analysed in an effort to obtain the interface contribution in terms that could be incorporated into a tensile fracture model for unidirectional composites. Depending on the matrix, two regimes of interfacial stress transfer can be distinguished within the whole range of tested temperatures. For the SCS2/5083 system, plastic deformation of the alloy limits the stress transfer, and the interface contribution thus finds its expression in the shear stress of the matrix. for the SCS6/Ti-6Al-4V system, friction is the leading process and the interface contribution strongly depends on the stress state around the fibre. Assuming a temperature dependent compressive radial stress up to 925‡C, an effective transfer shear stress may be easily calculated for unidirectional SCS6/Ti-6Al-4V composites.


Shear Stress Tensile Strength Fracture Model Radial Stress Tensile Fracture 
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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • L. Molliex
    • 1
  • J. -P. Favre
    • 1
  • A. Vassel
    • 1
  • M. Rabinovitch
    • 1
  1. 1.Materials Science DepartmentONERAChâtillonFrance

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