IFMA - Institut Français de Mécanique Avancée (Clermont Université, Institut Français de Mécanique Avancée (IFMA) / Laboratoire de Mécanique et Ingénieries (LaMI), BP 10448 - F-63000 Clermont Ferrand - France)
2GEMH - Groupe d'Etudes des Matériaux Hétérogènes (Centre Universitaire de Génie Civil
Département Génie Civil, Faculté des Sciences et Techniques de Limoges
Boulevard Jacques Derche, 19300 Egletons - France)
Abstract : This Note deals with an algorithmic approach about the crack initiation and the crack growth in a viscoelastic media for mixed mode configurations. This numerical model couples a finite element resolution of viscoelastic behavior and the Mθ integral calculus allowing a mixed mode separation in terms of stress intensity factors and energy release rate. The numerical application uses a 2MCG specimen allowing, in the same time, different mixed mode ratios and a crack growth stability. The finite element algorithm allows us to model the crack tip advance by taking into account the crack lip uncohesion in the process zone. It size is defined by taking into account stress field in the crack tip vicinity.
https://hal-unilim.archives-ouvertes.fr/hal-00639260
Contributeur : Claire Douady
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Soumis le : lundi 11 mars 2019 - 15:55:27
Dernière modification le : mercredi 1 mai 2019 - 14:56:03
Archivage à long terme le : mercredi 12 juin 2019 - 18:21:13
