Modelling of particle breakage - Wikipedia

Modelling of particle breakage is a process used in grinding. Grinding is an important unit operation used in many industries, such as ceramics, composites, foods, minerals, paints, inks and pharmaceuticals. Current technology, however, is inefficient and power-intensive. It is, therefore, important that grinding processes are properly designed ...

Modelling and Simulation of Particle Breakage in Jaw …

Jaw crushers are commonly-used machines in aggregate production. The aim of the research is to present a model which is able to predict particle size distribution in jaw crushers and to provide a new method for effectively controlling the quality of crushed product.

A new breakage model for accurate simulation of particle ...

The breakage model is currently available as a BETA from the EDEM User Forum. It is easy to use and includes a .dll file, used as an input in the physics section in EDEM, as well as the preference file with the parameters of the breakable materials.

Canadian Geotechnical Journal - NRC Research Press

Mathematical expressions for critical state stress ratio and specific volume are proposed to incorporate the evolution of particle breakage during monotonic shearing. In this paper, an elastoplastic constitutive model based on the critical state soil mechanics framework is presented to capture the salient aspects of stress–strain behaviour and degradation of ballast. Constitutive parameters ...

Numerical Study of the Dynamic Compaction Process ...

The dynamic stress of the bottom of the hammer without considering particle breakage at 2 m, 4 m, 6 m, and 10 m increased by 45%, 37%, 35%, and 47%, respectively, when compared to the dynamic stress if particle breakage was considered.

Particle Breakage Modeling - Rocky DEM

Prediction of comminution equipment performance is critical for efficient processes design. The large amounts of power required to grind mineral ore in the mining industry is expensive and companies seek methods to reduce this cost through further optimization of crusher designs.

Comparison of breakage models in DEM in simulating …

Simulations using both the bonded-particle model (BPM) and the particle replacement model (PRM) were carried out using EDEM 2.7, whereas simulations using a variant of the particle replacement model using polyhedral-shaped particles, called fast breakage model (FBM), …

Tavares Breakage Model in Rocky DEM - Rocky DEM

When simulating particulate systems using the discrete element method (DEM), particle breakage can occur. Sometimes the extent of this breakage is significant, such as in crushers and mills, which are designed to crush chunks of ore into smaller pieces.

Particle Breakage - scientific.net

The particle breakage of coarse-grained soil increase with the input plastic work and there is a relationship of power function between B g and W p. the increase of confining pressure will lead to the increase of particle breakage of coarse-grained soil, and there is a relationship of power function between B g and. the increase of particle breakage of coarse-grained soil will lead to the ...

Elastoplastic Constitutive Model for Rockfill Materials ...

The effect of particle breakage was incorporated into the proposed state parameter, dilatancy stress ratio, stress dilatancy relation, bounding stress ratio, and plastic modulus in the proposed model. The model considering particle breakage can well predict the stress-strain and particle-breakage behaviors of rockfill materials at various confining pressures.

Micromechanical modeling of particle breakage of granular ...

The particle breakage of granular materials under compression is a phenomenon of great importance. In this paper, a In this paper, a micromechanically based model for the compression of crushable granular materials is developed in the framework of

An Enhanced Generalized Plasticity Model for Coarse ...

In this study, an enhanced constitutive model is developed for coarse granular soil within the framework of generalized plasticity (Pastor, Zienkiewicz, and Chan, 1990). In this model, particle breakage is also considered by introducing the state parameter and the compression index into the plastic modulus, loading vectors, and plastic flow ...