A failure criterion for brittle elastic materials under mixed-mode loading
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The failure criterion of Leguillon at reentrant corners in brittle elastic materials (Leguillon 2002, Eur J Mech A/Solids 21: 61–72; Leguillon et al. (2003), Eur J Mech A—Solids 22(4): 509–524) validated in (Yosibash et al. 2004, Int J Fract 125(3–4): 307–333) for mode I loading is being extended to mixed mode loading and is being validated by experimental observations. We present an explicit derivation of all quantities involved in the computation of the failure criterion. The failure criterion is validated by predicting the critical load and crack initiation angle of specimens under mixed mode loading and comparison to experimental observations on PMMA (polymer) and Macor (ceramic) V-notched specimens.
KeywordsFailure initiation Mixed-mode fracture Generalized stress intensity factors V-notch
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- Leguillon D, Siruguet K (2002) Finite fracture mechanics Application to the onset of a crack at a bimaterial corner. In: Wales B and Karihaloo (eds.) IUTAM symposium on analytical and computational fracture mechanics of non-homogeneous materials (Cardiff, 18–22 June 2001), solid mechanics and its applications, vol 97. Kluwer Academic Publishers, Dordrecht, pp 11–18Google Scholar
- Szabó BA, Babuška I (1988) Computation of the amplitude of stress singular terms for cracks and reentrant corners. In: CTA (ed) Fracture mechanics: nineteenth Symposium. ASTM STP 969, ASTM, Philadelphia, pp 101–124Google Scholar