Skip to Main content Skip to Navigation
Journal articles

An algorithm for generating mechanically sound sphere packings in geological models

Abstract : The discrete element method (DEM) is a powerful tool for simulating complex mechanical behaviors which discretizes the targeted medium with particles. The properties of particle assemblies used in DEM simulations directly impact the behavior of the simulated medium. It is thus of critical importance to generate particle assemblies so as to (1) avoid any bias induced by their fabric, and (2) conform with the structural discontinuities of the medium under consideration. The main objective of this work is to propose an algorithm, inspired by the space filling Apollony fractal, to generate sphere packings in geological objects as a first step toward their mechanical modeling with the DEM. In particular, we assess the relevance of the generated packings for simulating the behavior of a rock-like material, and we discuss the ability of the proposed approach to discretize geological models. The algorithm ensures the tangential conformity of spheres with the model boundaries (internal and external), and enables to adapt the particle size distribution in the vicinity of structures of interest such as, fractures or faults.
Complete list of metadata

Cited literature [50 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-02515331
Contributor : François Bonneau Connect in order to contact the contributor
Submitted on : Monday, March 23, 2020 - 3:31:59 PM
Last modification on : Wednesday, November 3, 2021 - 4:53:24 AM
Long-term archiving on: : Wednesday, June 24, 2020 - 2:44:33 PM

File

bonneau_cmp_2020.pdf
Files produced by the author(s)

Identifiers

Citation

François Bonneau, Luc Scholtes, Hugo Rambure. An algorithm for generating mechanically sound sphere packings in geological models. Computational Particle Mechanics, Springer Verlag, 2020, ⟨10.1007/s40571-020-00324-7⟩. ⟨hal-02515331⟩

Share

Metrics

Record views

501

Files downloads

528