Engineering Computations: Volume 9 Issue 2

Strapline:

International journal for computer-aided engineering and software
Subjects:

Table of contents

NUMERICAL MODELLING OF DISCONTINUA

PETER A. CUNDALL, ROGER D. HART

Discrete element methods are numerical procedures for simulating the complete behaviour of systems of discrete, interacting bodies. Three important aspects of discrete element…

2569

SUPERQUADRICS AND MODAL DYNAMICS FOR DISCRETE ELEMENTS IN INTERACTIVE DESIGN

JOHN R. WILLIAMS, ALEX P. PENTLAND

This paper discusses advances in interactive discrete element simulation for use in computer‐aided concurrent design. We highlight the computational problems of creating a…

DISCRETE MODELLING OF STRESS‐STRAIN BEHAVIOUR OF GRANULAR MEDIA AT SMALL AND LARGE STRAINS

RICARDO DOBRY, AND TANG‐TAT NG

A general overview is presented on applications of the discrete element method (DEM) to granular media. A literature survey is performed of static and dynamic simulations using…

THE DISCRETE ELEMENT METHOD FOR ANALYSIS OF FRAGMENTATION OF DISCONTINUA

GRANT HOCKING

This paper is concerned with the determination of the transient stress and deformational state of plate‐like discontinua subject to flexural cracking. Such a phenomenon can be…

DISCONTINUOUS DEFORMATION ANALYSIS: A NEW NUMERICAL MODEL FOR THE STATICS AND DYNAMICS OF DEFORMABLE BLOCK STRUCTURES

GEN‐HUA SHI

A numerical model of deformable block systems that gives a unique solution for large displacement, large deformation and failure computations is presented. The forces acting on…

2065

A NOVEL AUTOMATIC IDENTIFICATION SYSTEM FOR THREE‐DIMENSIONAL MULTI‐BLOCK SYSTEMS

Y. IKEGAWA, J.A. HUDSON

Until now, identification of three‐dimensional non‐convex (concave) blocks has not been accomplished. However, a direct body concept, which is introduced here, can deal with both…

A GENERALIZED FORMULATION OF THE DISCRETE ELEMENT METHOD

GRAHAM G.W. MUSTOE

A generalized weighted residual method is used to formulate the discrete element method (DEM) for rigid or deformable bodies. It is shown that this approach provides a unified…

A NUMERICAL LABORATORY FOR GRANULAR SOLIDS

B.C. TRENT, L.G. MARGOLIN

The distinct element method has been used to perform a number of numerical experiments, analogous to physical tests routinely carried out for real geologic materials. The ability…

INVESTIGATION OF MICROMECHANICAL FEATURES OF IDEALIZED GRANULAR ASSEMBLIES USING DEM

RICHARD J. BATHURST, LEO ROTHENBURG

The development of physically‐correct models of granular behaviour under shear deformations must recognize the discrete nature of the medium and the mechanical properties of the…

NUMERICAL ANALYSIS OF MICROMECHANICAL BEHAVIOUR OF GRANULAR MATERIALS

JAY A. ISSA, RICHARD B. NELSON

A numerical analysis of the micromechanical behaviour of a granular material is described using a new program MASOM based on Cundall's discrete element method. In the analysis the…

APPLICATION OF THE DISTINCT ELEMENT METHOD FOR ROCK MECHANICS PROBLEMS

S.K. CHOI

Some aspects of the distinct element method (DEM) are reviewed. A model for fully grouted reinforcement subjected to axial and/or shear force(s) is proposed. The modelling of some…

HYBRID DISCRETE ELEMENT CODE FOR SIMULATION OF MINING‐INDUCED STRATA MOVEMENTS

KEVIN M. O'CONNOR, CHARLES H. DOWDING

To simulate the kinematics associated with mining‐induced subsidence in a blocky rock mass, a hybrid rigid block model was developed by combining a small displacement code with a…

SIMULATION OF BLASTING INDUCED ROCK MOTION USING SPHERICAL ELEMENT MODELS

LEE M. TAYLOR, DALE S. PREECE

Control of the rock motion associated with blasting can have significant economic benefits. For example, surface coal mining can be made more efficient if the overburden material…

DISCRETE FINITE ELEMENT METHOD

R. BARBOSA, J. GHABOUSSI

A numerical technique is described for the analysis of multiple interacting deformable bodies undergoing large displacements and rotations. Each body is considered an individual…

A MICROSTRUCTURAL FINITE ELEMENT MODEL FOR GRANULAR SOLIDS

CHING L. LIAO, CHING S. CHANG

A microstructural finite element model (MFEM) for granular material considering the microstructure of material is presentented. In the MFEM method, a volume of large number of…

MODELLING OF SOIL CREEP WITH THE DISCRETE ELEMENT METHOD

MATTHEW R. KUHN, JAMES K. MITCHELL

The discrete element method (DEM) was used to stimulate creep processes in granular materials. The authors present the main features of the numerical model, which include a new…

APPLICATIONS OF DEM TO PROCESS ENGINEERING PROBLEMS

COLIN THORNTON

Although computer simulated experimentation using the distinct element method (DEM) was originally developed as a tool for examining geomechanical problems, the dynamic nature of…

Cover of Engineering Computations

ISSN:

0264-4401

Online date, start – end:

1984

Copyright Holder:

Emerald Publishing Limited

Open Access:

hybrid

Editor:

  • Prof. Chenfeng Li