Dans les matériaux fragiles, la concentration des contraintes en pointe de fissure rend les propriétés macroscopiques de rupture très sensibles aux hétérogénéités à l'échelle de la microstructure. Ainsi, leur rupture s'accompagne très souvent d'un bruit de craquement bien caractéristique et les surfaces de rupture présentent une rugosité à toutes les échelles. Je montrerai comment les outils de la physique statistique permettent d'intégrer les effets de désordre microstructural à la théorie classique de la Mécanique de la Rupture pour rendre compte, entre autres, de ces deux phénomènes
Structural design with brittle materials requires that the stress level in the component correspond ...
A homogenization framework is established in order to construct constitutive equations ...
Dynamic crack propagation drives catastrophic material failures. A key aspect in the problem is the ...
Lacking the energy dissipative mechanics such as plastic deformation to rebalance localized stresses...
For a half-century, engineers know how to describe and predict the propagation of a crack in a model...
International audiencePredicting when rupture occurs or cracks progress is a major challenge in nume...
International audienceThis paper addresses the question of the homogenization of fracture properties...
Being able to predict the macroscopic response of a material from the knowledge of its constituent a...
Invited review articleInternational audienceStress enhancement in the vicinity of brittle cracks mak...
In brittle solids, stress concentration at crack tips makes the macroscopic fracture properties very...
International audienceWe analyze the intermittent dynamics of cracks in heterogeneous brittle materi...
Disorder and long-range interactions are two of the key components that make material failure an int...
Failure of brittle materials is due to the unstable propagation of a dominant crack and, therefore, ...
5 pages, 4 figures, accepted in Phys. Rev. Lett.We study how the loading rate, specimen geometry and...
For a half-century, engineers know how to describe and predict the propagation of a crack in a model...
Structural design with brittle materials requires that the stress level in the component correspond ...
A homogenization framework is established in order to construct constitutive equations ...
Dynamic crack propagation drives catastrophic material failures. A key aspect in the problem is the ...
Lacking the energy dissipative mechanics such as plastic deformation to rebalance localized stresses...
For a half-century, engineers know how to describe and predict the propagation of a crack in a model...
International audiencePredicting when rupture occurs or cracks progress is a major challenge in nume...
International audienceThis paper addresses the question of the homogenization of fracture properties...
Being able to predict the macroscopic response of a material from the knowledge of its constituent a...
Invited review articleInternational audienceStress enhancement in the vicinity of brittle cracks mak...
In brittle solids, stress concentration at crack tips makes the macroscopic fracture properties very...
International audienceWe analyze the intermittent dynamics of cracks in heterogeneous brittle materi...
Disorder and long-range interactions are two of the key components that make material failure an int...
Failure of brittle materials is due to the unstable propagation of a dominant crack and, therefore, ...
5 pages, 4 figures, accepted in Phys. Rev. Lett.We study how the loading rate, specimen geometry and...
For a half-century, engineers know how to describe and predict the propagation of a crack in a model...
Structural design with brittle materials requires that the stress level in the component correspond ...
A homogenization framework is established in order to construct constitutive equations ...
Dynamic crack propagation drives catastrophic material failures. A key aspect in the problem is the ...