Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Magnanimo, Vanessa"'
The paper describes a novel methodology of designing granular phononic crystals for acoustic wave manipulations. A discrete element method is utilized to model the dynamics of a pulse wave propagating through the densely packed assembly of elastic sp
Externí odkaz:
http://arxiv.org/abs/2202.10425
Publikováno v:
Phys. Rev. E 102, 032901 (2020)
Collapse modes in compressed simple cubic (SC) and body-centered cubic (BCC) periodic arrangements of elastic frictionless beads were studied numerically using the discrete element method. Under pure hydrostatic compression, the SC arrangement tends
Externí odkaz:
http://arxiv.org/abs/2004.11888
Publikováno v:
E3S Web of Conferences, Vol 544, p 16001 (2024)
The hydro-mechanical properties of the vadose zone are strongly influenced by seasonal cycles. The hydraulic behavior of this zone is determined by the coupling of biotic and abiotic factors. The biotic factors are controlled by the physiology and an
Externí odkaz:
https://doaj.org/article/5686bf59f09f44ec8563681e6aee9887
Biot's theory predicts the wave velocities of a saturated poroelastic granular medium from the elastic properties, density and geometry of its dry solid matrix and the pore fluid, neglecting the interaction between constituent particles and local flo
Externí odkaz:
http://arxiv.org/abs/1808.08921
Elastic wave propagation provides a noninvasive way to probe granular materials. The discrete element method using particle configuration as input, allows a micromechanical interpretation on the acoustic response of a given granular system. This pape
Externí odkaz:
http://arxiv.org/abs/1808.08900
Liquid has a significant effect on the flow of wet granular assemblies. We explore the effects of liquid induced cohesion on the flow characteristics of wet granular materials. We propose a cohesion-scaling approach that enables invariant flow charac
Externí odkaz:
http://arxiv.org/abs/1801.02454
Publikováno v:
In Particuology December 2021 59:64-75
Mechanical responses of soft particle packings to quasi-static deformations are determined by the microscopic restructuring of force-chain networks, where complex non-affine displacements of constituent particles cause the irreversible macroscopic be
Externí odkaz:
http://arxiv.org/abs/1507.04377
Publikováno v:
Acta Mechanica, Volume 225, Issue 8, pp 2319-2343, 2014
Physical experiments can characterize the elastic response of granular materials in terms of macroscopic state-variables, namely volume (packing) fraction and stress, while the microstructure is not accessible and thus neglected. Here, by means of nu
Externí odkaz:
http://arxiv.org/abs/1506.02992
Publikováno v:
Powder Technology, 293, 94-112, 2016
We study the bulk properties of isotropic bidisperse granular mixtures using discrete element simulations. The focus is on the influence of the size (radius) ratio of the two constituents and volume fraction on the mixture properties. We show that th
Externí odkaz:
http://arxiv.org/abs/1506.02982