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Mode I+III multiscale cohesive zone model with facet coarsening and overlap: Solutions and applications to facet orientation and toughening

Abstract : When subjected to some anti-plane shear mode III loading, segmentation of the crack front frequently occurs during propagation: even if the crack is initially planar, propagation produces facets/segments rotated toward the shear free direction. These facets induce some modifications in the local loading of the crack tips that can be captured through the multi-scale cohesive zone model proposed by Leblond et al., 2015. Assuming that the width of the facets is small in comparison to their length, the facets can be considered at the microscale, as a bidimensional periodic array of tilted cracks perpendicularly to the direction of propagation, and at the macroscale, as a growing Cohesive Zone. The model was developed initially supposing a
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https://hal.archives-ouvertes.fr/hal-02570472
Contributeur : Véronique Lazarus <>
Soumis le : mercredi 25 novembre 2020 - 10:17:44
Dernière modification le : mardi 8 décembre 2020 - 03:33:29

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V. Lazarus, B. Prabel, T. Cambonie, J.B. Leblond. Mode I+III multiscale cohesive zone model with facet coarsening and overlap: Solutions and applications to facet orientation and toughening. Journal of the Mechanics and Physics of Solids, Elsevier, 2020, 141, pp.104007. ⟨10.1016/j.jmps.2020.104007⟩. ⟨hal-02570472⟩

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