Séminaire Liquides/Mat. molle
Mardi 6 Février 2018 à 11h00.
Plasticity and shear band formation in a granular material
Axelle AMON
(Institut de Physique de Rennes)
Nautibus TD2
Invité(e) par
Anne-Laure BIANCE
Axe : Liquide et interfaces
présentera en 1 heure :
''I will present an experimental study of the plastic response of a model amorphous material: a packing of glass spheres uniaxially compressed. Our experiment allows us to explore several scales both spatially and in term of strain increment. Two different behaviors can be identified and characterized: an intermittent plastic flow which can be understood in the framework of current theories of the plasticity of amorphous materials, and a slow, large-scale behavior which undergoes a symmetry breaking initiating the formation of the shear band.''