Influences des param\`etres microm\'ecaniques dans la simulation num\'erique discr\`ete des mat\'eriaux granulaires : assemblage, d\'eformation quasi-statique, \'ecoulements

TL;DR

This paper reviews how micromechanical parameters affect the macroscopic behavior of granular materials in discrete element simulations, emphasizing the role of dimensionless numbers in classifying rheological regimes.

Contribution

It introduces a classification framework for rheological regimes based on dimensionless numbers in discrete element simulations of granular materials.

Findings

Micromechanical parameters significantly influence macroscopic behavior.

Dimensionless numbers effectively classify different rheological regimes.

The review highlights the importance of parameter selection in simulations.

Abstract

We review the influence of micromechanical parameters on the macroscopic mechanical behaviour of granular materials, as numerically simulated in discrete element approaches, both in quasistatic conditions an din dense flow. We insist in particular on the role of suitably defined dimensionless numbers apt to provide a classification of rheological regimes of quite general validity.