Engineering Computations: Volume 12 Issue 2

Effect of particle shape on the strength and deformation mechanisms of ellipse‐shaped granular assemblages

John M. Ting, Larry Meachum, Jeffrey D. Rowell

This paper presents the results of a Discrete Element Method study on the influence of particle shape on the strength and deformation behaviour of two dimensional assemblages of…

Visualization of dynamic fluid simulations: waves, splashing, vorticity, boundaries, buoyancy

Nick Foster, Dimitri Metaxas

A software package is developed for the modelling and animation of viscous incompressible fluids. The full time‐dependent Navier‐Stokes equations are used to simulate 2D and 3D…

Numerical validation of a constitutive theory for an arbitrarily fractured solid

B.C. Trent, L.G. Margolin

We have developed a general constitutive theory that estimates the effective elastic moduli of a cemented granular material by applying statistical mechanical averaging to a…

A method to resolve ambiguities in corner‐corner interactions between polygons in the context of motion simulations

Jayaraman Krishnasamy, Mark J. Jakiela

The motion of systems of polygonal objects is characterized by discontinuities due to changes in the set of contacts between polygons. Effective simulations of such a motion…

A combined finite‐discrete element method in transient dynamics of fracturing solids

A. Munjiza, D.R.J. Owen, N. Bicanic

This paper discusses the issues involved in the development of combined finite/discrete element methods; both from a fundamental theoretical viewpoint and some related algorithmic…

A flexible boundary for three‐dimensional dem particle assemblies

Matthew R. Kuhn

An algorithm is presented for creating a flexible boundary to analyse three‐dimensional assemblies of spheres. It can be used to study localization phenomena in particulate…

A linear complexity intersection algorithm for discrete element simulation of arbitrary geometries

J.R. Williams, R. O’Connor

We present an algorithm for contact resolution that is valid for a wide variety of polygonal two dimensional shapes and is of linear computational complexity. The algorithm is…