Engineering Computations: Volume 21 Issue 2/3/4
Strapline:
International journal for computer-aided engineering and softwareCategory:
Mechanical and Materials EngineeringTable Of Contents
Contributions to the experimental validation of the discrete element method applied to tumbling mills
Andrew McBride, Indresan Govender, Malcolm Powell, Trevor CloeteAccurate 3D experimental particle trajectory data, acquired from a laboratory tumbling mill using bi‐planar X‐ray filming, are used to validate the discrete element method…
Strategies for contact resolution of level surfaces
E. Tijskens, J. De Baerdemaeker, H. RamonParticles in granular matter can have very different and irregular shapes. The computational treatment of nonspherical objects is a major difficulty in the simulation of…
A direct simulation method for particle‐fluid systems
Benjamin K. Cook, David R. Noble, John R. WilliamsA coupled numerical method for the direct simulation of particle‐fluid systems is formulated and implemented. The Navier‐Stokes equations governing fluid flow are solved…
Large scale industrial DEM modelling
Paul W. ClearyParticle scale simulation of industrial particle flows using discrete element method (DEM) offers the opportunity for better understanding the flow dynamics leading to…
Discrete element method: An effective way for particle scale research of particulate matter
A.B. YuDiscrete element method (DEM) has been extensively used in the laboratory of particulate and multiphase processing at the University of New South Wales (UNSW) to study the…
Contact resolution algorithm for an ellipsoid approximation for discrete element modeling
Scott Johnson, John R. Williams, Benjamin CookThe efficiency of a discrete element implementation relies on several factors, including the particle representation, neighbor‐sorting algorithm, contact resolution, and…
A contact algorithm for partitioning N arbitrary sized objects
John R. Williams, Eric Perkins, Ben CookA new spatial reasoning algorithm that can be used in multi‐body contact detection is presented. The algorithm achieves the partitioning of N bodies of arbitrary shape and…
Comparison of experimental and FEM/DEM results for gravitational deposition of identical cubes
A. Munjiza, J.P. LathamThe combined finite‐discrete element method has been used to simulate the gravitational depositions of packs containing particles of cubical shape. This approach to the…
A 2D polygon/polygon contact model: algorithmic aspects
Y.T. Feng, D.R.J. OwenThis paper proposes an energy‐based general polygon to polygon normal contact model in which the normal and tangential directions, magnitude and reference contact position…
Selecting a suitable time step for discrete element simulations that use the central difference time integration scheme
Catherine O'Sullivan, Jonathan D. BrayThe distinct element method as proposed by Cundall and Strack uses the computationally efficient, explicit, central difference time integration scheme. A limitation of…
Numerical studies of uniaxial powder compaction process by 3D DEM
Y. Sheng, C.J. Lawrence, B.J. Briscoe, C. ThorntonIn this paper, a 3D DEM program TRUBAL, which is capable of calculating the contact between particles considering friction and local plastic deformation, is employed to…
Thin tunnel liners modelled with particle flow code
Dwayne D. Tannant, Caigen WangSimple discrete element models using PFC2D models with bonded assemblies of particles were used to numerically simulate direct tension and block punching tests on thin…
Shape selection menu for grand scale discontinua systems
E. Rougier, A. Munjiza, J.P. LathamIt is now widely recognised that particle shape plays an important role in the behaviour of grand scale discontinua systems and may be partially responsible for some of…
A particle center based homogenization strategy for granular assemblies
G.A. D'Addetta, E. Ramm, S. Diebels, W. EhlersIn this paper, a new homogenization technique for the determination of dynamic and kinematic quantities of representative elementary volumes (REVs) in granular assemblies…
Simulations of underground structures subjected to dynamic loading using the distinct element method
J.P. Morris, M.B. Rubin, S.C. Blair, L.A. Glenn, F.E. HeuzeWe present the preliminary results from a parameter study investigating the stability of underground structures in response to explosion‐induced strong ground motions. In…
A discrete element Lagrangian sea ice model
Mark A. HopkinsThe ice pack covering the Arctic basin is composed of a multitude of ice parcels of different areas, ages, thicknesses, and deformation histories that are frozen together…
Discrete element modeling with dilated particles
Mark A. HopkinsA new contact detection technique for discrete element modeling is described. This technique is suitable for a large family of particle shapes that are based on the…
Dynamic simulation of multiple deformable bodies using combined discrete and finite element methods
Petros I. Komodromos, John R. WilliamsThe discrete element methods (DEM) are numerical techniques that have been specifically developed to enable simulations of systems of multiple distinct, typically…
ISSN:
0264-4401Online date, start – end:
1984Copyright Holder:
Emerald Publishing LimitedOpen access:
hybridEditors:
- Dr Eduardo de Souza Neto
- Prof. Chenfeng Li