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Related Experiment Video

Updated: Apr 15, 2026

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography

Visualization of Failure and the Associated Grain-Scale Mechanical Behavior of Granular Soils under Shear using Synchrotron X-Ray Micro-Tomography

Published on: September 29, 2019

Multiple-contact discrete-element model for simulating dense granular media.

Nicolas Brodu^1,2, Joshua A Dijksman^2,3, Robert P Behringer²

¹INRIA, 200 Avenue de la Vieille Tour, 33405 Talence, France.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|April 15, 2015

Summary

This summary is machine-generated.

A new multiple-contact discrete element method (MC-DEM) model accurately simulates dense granular materials by accounting for grain interactions. This approach improves quantitative simulations without complex methods, matching experimental data.

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Area of Science:

Computational physics
Materials science
Granular mechanics

Background:

Simulating dense granular materials requires accurate models for inter-particle forces.
Existing methods often oversimplify or require computationally expensive techniques.

Purpose of the Study:

To introduce a novel force model for quantitative simulations of dense granular materials.
To validate the model against experimental data and compare it with existing simulation approaches.

Main Methods:

Development of a new multiple-contact discrete element method (MC-DEM) model.
Explicitly incorporating interactions between multiple contacts on individual grains.
Performing quantitative simulations in full 3D and comparing with experimental measurements.

Main Results:

The MC-DEM model closely reproduces experimental contact force distributions.
The model accurately simulates granular behavior up to 13% compression.
Demonstrated superior performance compared to nondeformable spheres and other MC models.

Conclusions:

Including multiple-contact interactions on each grain is crucial for accurate dense granular packing simulations.
The developed MC-DEM method offers a readily applicable and efficient alternative to complex simulation techniques.