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pro vyhledávání: '"Combe G"'
This paper is devoted to the micro-mechanical origins of the high compressibility of brittle tubular particle assemblies. The material is extremely porous due to the presence of a large hole within the tube-shaped particle. The release of the inner v
Externí odkaz:
http://arxiv.org/abs/2110.12944
Publikováno v:
In International Journal of Solids and Structures 15 March 2020 187:48-57
We investigate the mechanical properties of inclined frictional granular layers prepared with different protocols by means of DEM numerical simulations. We perform an orthotropic elastic analysis of the stress response to a localized overload at the
Externí odkaz:
http://arxiv.org/abs/1401.8100
Publikováno v:
Powder Technology, vol 208, issue 2, pp 279-288, 2011
We performed a series of numerical vertical compression tests on assemblies of 2D granular material using a Discrete Element code and studied the results with regard to the grain shape. The samples consist of 5,000 grains made from either 3 overlappi
Externí odkaz:
http://arxiv.org/abs/1208.0565
Autor:
Saint-Cyr, B., Szarf, K., Voivret, C., Azéma, E., Richefeu, V., Delenne, J. -Y., Combe, G., Nouguier-Lehon, C., Villard, P., Sornay, P., Chaze, M., Radjaï, F.
Publikováno v:
Europhysics Letters, Vol. 98, Number 4, p 44008, 2012
Particle shape is a key to the space-filling and strength properties of granular matter. We consider a shape parameter $\eta$ describing the degree of distortion from a perfectly spherical shape. Encompassing most specific shape characteristics such
Externí odkaz:
http://arxiv.org/abs/1208.0499
We present an orthotropic elastic analysis of frictional granular layers under gravity by studying their stress response to a localized overload at the layer surface for several substrate tilt angles. The distance to the unjamming transition is contr
Externí odkaz:
http://arxiv.org/abs/1203.5996
Publikováno v:
Physical Review Letters 96, 168001 (2006)
It is demonstrated, by numerical simulations of a 2D assembly of polydisperse disks, that there exists a range (plateau) of coarse graining scales for which the stress tensor field in a granular solid is nearly resolution independent, thereby enablin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511610
Autor:
Atman, A. P. F., Brunet, P., Geng, J., Reydellet, G., Combe, G., Claudin, P., Behringer, R. P., Clément, E.
A granular assembly composed of a collection of identical grains may pack under different microscopic configurations with microscopic features that are sensitive to the preparation history. A given configuration may also change in response to externa
Externí odkaz:
http://arxiv.org/abs/cond-mat/0411734
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Publikováno v:
In Powder Technology 2011 208(2):279-288