Particulate Mechanics Of Manufacturing Processes (2007)
John R. Williams, Nabha Rege, Ruaidhr'i O'Connor, Environmental Engineering
This paper addresses two manufacturing processes used to produce high performance materials, namely 1) packing of ceramic powders, and 2) three dimensional printing of components. In order to...
John Williams, Nabha Rege, Kevin Amaratunga
In this paper we use a discrete element method to explore the propagation of waves through granular materials consisting of particles with different geometric shapes. We present results for a variety...
The Development Of Circulation Cell Structures In Granular Materials Undergoing Compression (2007)
This paper predicts the formation of microstructures within a granular material undergoing biaxial compression. Using the discrete element method we test ensembles of particles of varying geometric...
John R. Williams, Kevin Amaratunga, Nabha Rege
In this paper we describe an element-free Boundary Point Method (BPM) for the deformation analysis of solid bodies. The Boundary Point Method uses Gaussian basis functions with radial symmetry which...
Coherent Structures in Deforming Granular Materials (1996)
In this paper a discrete element model is used to investigate the formation of coherent structures within a deforming granular material. The numerical models predict the formation of coherent vortex...