Journal of Materials Science

, Volume 26, Issue 23, pp 6383–6390

Fracture of alumina: an experimental and numerical study

  • J. Llorca
  • R. W. Steinbrech

DOI: 10.1007/BF02387818

Cite this article as:
Llorca, J. & Steinbrech, R.W. J Mater Sci (1991) 26: 6383. doi:10.1007/BF02387818


A numerical analysis of the fracture behaviour of alumina has been performed based on experimental crack growth studies. Single-edge notch bend and short-double cantilever beam specimens of diverse grain size alumina were tested under quasi-static growth conditions. Constitutive equations for the alumina were obtained from experimental results and used to carry out finite element analyses. The agreement between numerical and experimental results is very promising, e.g. the influence of grain size on fracture behaviour can be predicted accurately. The underlying toughening mechanisms are discussed.

Copyright information

© Chapman & Hall 1991

Authors and Affiliations

  • J. Llorca
    • 1
  • R. W. Steinbrech
    • 2
  1. 1.Departamento de Ciencia de MaterialesUniversidad Politécnica de Madrid, ETS Ingenieros de CaminosMadridSpain
  2. 2.Institut für ReaktorwerkstoffeForschunszentrum JülichJülichGermany

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