Contact model

This reference manual provides the key information regarding an bonded beam contact model for EDEM that has been developed over many years at the University of Edinburgh.

An example problem (uniaxial compression) for the Edinburgh Cohesion Model.

Example problem (Uniaxial compression of concrete cylinder) for the Edinburgh Bond Model.

Bulk handling of powders and granular solids is common in many industries and often gives rise to handling difficulties especially when the material exhibits complex cohesive behavior. For example, high storage stresses in a silo can lead to high cohesive strength of the stored solid, which may in turn cause blockages such as ratholing or arching near the outlet during discharge. This paper deploys the Discrete Element Method to study the discharge of a granular solid from a flat-bottomed silo with varying levels of cohesion and varying levels of internal friction which arises from a combination of particle interlocking and contact friction (sliding and rolling).

Bulk handling of powders and granular solids is common in many industries and often gives rise to handling difficulties especially when the material exhibits complex cohesive behavior. In this study the effect of moisture on the level of cohesion, and thus handleability, of iron ore fines is investigated.

An adhesive elasto-plastic contact model for the discrete element method with three dimensional non-spherical particles is proposed and investigated to achieve quantitative prediction of cohesive powder flowability.

Poster at Telford-UKIERI workshop on Anisotropic, heterogeneous and cellular materials: From microarchitecture to macro-level response

Powders and bulk solids are stored and handled in large quantities in many industries. The materials can differ greatly in size, shape …

Bulk handling of powders and granular solids is common in many industries and often gives rise to handling difficulties especially when the material exhibits complex cohesive behaviour. For example, high storage stresses in a silo can lead to high cohesive strength of the stored solid, which may in turn cause blockages such as ratholing or arching near the outlet during discharge.

In this study, the behaviour of iron ore fines with varying levels of adhesion was investigated using a confined compression test and a …