| HAL : hal-00703368, version 1 |
| DOI : 10.1103/PhysRevLett.108.225502 |
| Fiche détaillée | Récupérer au format |
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| Physical Review Letters 108 (2012) 225502 |
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| Damage-cluster distributions and size effect on strength in compressive failure |
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| Lucas Girard 1Jérôme Weiss 1 |
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| (30/05/2012) |
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| We investigate compressive failure of heterogeneous materials on the basis of a continuous progressive-damage model. The model explicitly accounts for tensile and shear local damage and reproduces the main features of compressive failure of brittle materials like rocks or ice. We show that the size distribution of damage clusters, as well as the evolution of an order parameter--the size of the largest damage cluster-- argue for a critical interpretation of fracture. The compressive failure strength follows a normal distribution with a very small size effect on the mean strength, in good agreement with experiments. |
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| 1 : | Laboratoire de glaciologie et géophysique de l'environnement (LGGE) |
| CNRS : UMR5183 – OSUG – INSU – Université Joseph Fourier - Grenoble I | |
| 2 : | Institut des sciences de la Terre (ISTerre) |
| CNRS : UMR5275 – IFSTTAR – Université de Savoie – Université Joseph Fourier - Grenoble I – INSU – OSUG – Institut de recherche pour le développement [IRD] : UR219 | |
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| Mécanique des failles |
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| Domaine | : | Physique/Matière Condensée/Mécanique statistique |
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| damage cluster distribution – percolation – size effect |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00703368, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00703368 | |
| oai:hal.archives-ouvertes.fr:hal-00703368 | |
| Contributeur : David Amitrano | |
| Soumis le : Vendredi 1 Juin 2012, 16:08:49 | |
| Dernière modification le : Mercredi 6 Juin 2012, 08:20:18 | |