Mixed mode failure criteria for brittle elastic V-notched structures.

Elad Priel, Arie Bussiba, Ilan Gilad, Zohar Yosibash

Research output: Contribution to journalArticlepeer-review


Three mixed mode failure initiation criteria at reentrant corners in brittle elastic materials are examined. Prediction of failure load and crack initiation angle are compared to experimental observations carried out on PMMA (polymer) and MACOR (glass ceramic) V-notched specimens. Since the mode mixity ratio influences greatly both the failure load and crack initiation angle, a detailed experimental procedure has been followed, focusing on obtaining a wide range of mode mixity ratios. It is demonstrated that by assuming a sharp V-notch tip some failure criteria predict reasonably well both the crack initiation angle and failure load.
Original languageEnglish
Pages (from-to)247-265
Number of pages19
JournalInternational Journal of Fracture
Issue number4
StatePublished - 1 May 2007
Externally publishedYes


  • INDUSTRIAL design
  • SURFACE defects
  • CRYSTAL texture
  • Ceramics
  • Failure initiation
  • Generalized stress intensity factors
  • Mixed-mode
  • p-version FEA
  • V-notch


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