Analysis of the failure at notches and cavities in quasi-brittle media using the Thick Level Set damage model and comparison with the coupled criterion

Abstract : The failure of quasi-brittle specimen weakened by sharp or blunted notches and cavities is analyzed under quasi-static loading. The load at failure is obtained with the Thick Level Set (TLS) damage modeling. In this model, the damage gradient is bounded implying that the minimal distance between a point where damage 0 (sound material) to 1 (fully damaged) is an imposed characteristic length in the model. This length plays an important role on the damage evolution and on the failure load. The paper shows that the TLS predictions are relevant. A comparison with the coupled criterion (CC) of Leguillon (2002) is given. A good agreement is obtained for cavities and V-notches
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https://hal.archives-ouvertes.fr/hal-01885347
Contributor : Claude Stolz <>
Submitted on : Monday, October 1, 2018 - 5:43:11 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:06 AM

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J. Zghal, K. Moreau, N. Moes, D. Leguillon, Claude Stolz. Analysis of the failure at notches and cavities in quasi-brittle media using the Thick Level Set damage model and comparison with the coupled criterion. International Journal of Fracture, Springer Verlag, 2018, 211 (1-2), pp.253 - 280. ⟨10.1007/s10704-018-0287-6⟩. ⟨hal-01885347⟩

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