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author = "Huillard, Guillaume"
1
Found 7 documents, displaying page 1 of 1
Propagation d'ondes sonores dans des empilements granulaires non-cohésifs
Author(s) :
Huillard, Guillaume
Description :
La propagation d'ondes sonores dans des empilements granulaires présente des comportements originaux et mal-élucidés liés à l'aspect divisé de ces matériaux. Ceux-ci se comportent notamment comme des milieux désordonnés et non-linéaires. Notre étude est originale car nous employons des grains photoé...
Repository :
HAL - Hyper Article on Line
Language(s) :
French
Photoelastic study of acoustic wave propagation in grain packings
Description :
By means of photoelasticity, we success in visualizing in real time the propagation of acoustic waves in a granular packing of cylinders. As previously mentioned by Nesterenko for the case of spherical grains, the nonlinearity of the contact law between grains induces a dependence of the wave veloci...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Propagation of acoustic waves in a one-dimensional array of noncohesive cylinders
Description :
By means of a photoelastic method, we access the visualization of acoustic waves propagating in a one dimensional array of noncohesive cylinders. As pointed by Nesterenko in the case of spherical grains (V.F. Nesterenko, J. Appl. Mech. Tech. Phys. 24, p. 567 (1983)), the nonlinearity of the contact ...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Attractive and repulsive cracks in a heterogeneous material
Description :
We study experimentally the paths of an assembly of cracks growing in interaction in a heterogeneous two-dimensional elastic brittle material submitted to uniaxial stress. For a given initial crack assembly geometry, we observe two types of crack path. The first one corresponds to a repulsion follow...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Work fluctuations in a nematic liquid crystal]{Work fluctuations in a nematic liquid crystal
Description :
The orientation fluctuations of the director of a liquid crystal are measured, by a sensitive polarization interferometer, close to the Fréedericksz transition, which is a second order transition driven by an electric field. Using mean field theory, we define the work injected into the system by a c...
Repository :
HAL - Hyper Article on Line
Language(s) :
English
Attractive and repulsive cracks in a heterogeneous material
Description :
We study experimentally the paths of an assembly of cracks growing in
interaction in a heterogeneous two-dimensional elastic brittle material
submitted to uniaxial stress. For a given initial crack assembly geometry, we
observe two types of crack path. The first one corresponds to a repulsion
foll...
Repository :
arXiv
Language(s) :
Undetermined
Work fluctuations in a nematic liquid crystal
Description :
The orientation fluctuations of the director of a liquid crystal are
measured, by a sensitive polarization interferometer, close to the
Fr\'eedericksz transition, which is a second order transition driven by an
electric field. Using mean field theory, we define the work injected into the
system by...
Repository :
arXiv
Language(s) :
Undetermined
1
Found 7 documents, displaying page 1 of 1