A new open-source software developed for numerical simulations using discrete modeling methods

Kozicki, J.; Donzé, Frédéric‐Victor

doi:10.1016/j.cma.2008.05.023

Cited by 256 publications

(167 citation statements)

References 13 publications

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“…In order to simulate the behaviour of real sand, the 3D spherical discrete model YADE, developed at University of Grenoble [11] was used by taking advantage of the socalled soft-particle approach (i.e. the model allows for particle deformation which is modelled as their overlap).…”

Section: Dem Results Of Passive Earth Pressure Model Testsmentioning

confidence: 99%

Investigations of formation of quasi-static vortex-structures in granular bodies using DEM

Kozicki

Tejchman

2017

EPJ Web Conf.

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Abstract. The paper presents some two-dimensional simulation results of vortex-structures in cohesionless initially dense sand during quasi-static passive wall translation. The sand behaviour was simulated using the discrete element method (DEM). Sand grains were modelled by spheres with contact moments to approximately capture the irregular grain shape. In order to detect vortex-structures, the Helmholtz-Hodge decomposition of a flow displacement field from DEM calculations was used. This approach enabled us to distinguish both incompressibility and vorticity in the granular displacement field.

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Section: Dem Results Of Passive Earth Pressure Model Testsmentioning

confidence: 99%

Investigations of formation of quasi-static vortex-structures in granular bodies using DEM

Kozicki

Tejchman

2017

EPJ Web Conf.

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“…The discrete element model has been developed within the open source Yade DEM framework [16]. There are two components of Vacuum Packed Particles to be considered: the pressure-tight envelope made of foil and the granular material inside.…”

Section: Discrete Element Model Of Pressure-tight Envelopementioning

confidence: 99%

Discrete element method approach to modelling VPP dampers

2018

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Abstract. In this paper, we present a novel approach to modeling and analysis of Vacuum Packed Particle dampers (VPP dampers) with the use of Discrete Element Method (DEM). VPP dampers are composed of loose granular medium encapsulated in a hermetic envelope, with controlled pressure inside the envelope. By changing the level of underpressure inside the envelope, one can control mechanical properties of the system. The main novelty of the DEM model proposed in this paper is the method to treat special (pressure) boundary conditions at the envelope. The model has been implemented within the open-source Yade DEM software. Preliminary results are presented and discussed in the paper. The qualitative agreement with experimental results has been achieved.

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“…To simulate sand grain roughness, additional moments were introduced into the 3D spherical model [4], which were transferred through contacts and resisted particle rotations. Our discrete element model can simulate the different grain shape by using different symmetric and non-symmetric clusters of spheres [6], we chose however spheres with contact moments for 2 reasons: a) in order to significantly shorten the computation time (calculations with spheres possessing contact moments are 3-5 times faster than those using complex clumps [7]) and b) in order to directly compare the discrete results with the finite element results based on a micro-polar approach.…”

Section: Calibration Of Discrete Parametersmentioning

confidence: 99%

“…The events were investigated base on a direct shear test which is a very popular laboratory test widely used in soil mechanics, rock mechanics and mechanics of bulk solids to determine some important properties of cohesionless and cohesive materials such as: drained strength envelope, flow function, angle of internal friction, dilatancy angle, wall friction angle and cohesion. To simulate the sand behaviour, the three-dimensional spherical discrete model YADE developed at University of Grenoble was used, allowing for introducing grain rolling resistance in order to take into account the grain roughness and using a linear contact model [4]. The particle breakage was not considered since the assumed pressure level was small.…”

Section: Introductionmentioning

confidence: 99%

Study of some micro-structural phenomena in granular shear zones

Kozicki¹,

Tejchman²,

Leśniewska³

2013

AIP Conference Proceedings

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Abstract. The paper deals with some characteristic phenomena of fundamental nature which occur within shear zones in granular materials. Phenomena such as self-organizing force chain networks, vortices, alternating contractant and dilatant regions within shear zones were modelled numerically using discrete element method DEM. Discrete simulations were carried out with medium-dense sand during direct a shearing test.

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A new open-source software developed for numerical simulations using discrete modeling methods

Cited by 256 publications

References 13 publications

Investigations of formation of quasi-static vortex-structures in granular bodies using DEM

Investigations of formation of quasi-static vortex-structures in granular bodies using DEM

Discrete element method approach to modelling VPP dampers

Study of some micro-structural phenomena in granular shear zones

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