Experimental and numerical characterization of expanded glass granules

authored by: Mohsin Ali Chaudry, Christian Woitzik, Alexander Düster, Peter Wriggers
Abstract: In this paper, the material response of expanded glass granules at different scales and under different boundary conditions is investigated. At grain scale, single particle tests can be used to determine properties like Young’s modulus or crushing strength. With experiments like triaxial and oedometer tests, it is possible to examine the bulk mechanical behaviour of the granular material. Our experimental investigation is complemented by a numerical simulation where the discrete element method is used to compute the mechanical behaviour of such materials. In order to improve the simulation quality, effects such as rolling resistance, inelastic behaviour, damage, and crushing are also included in the discrete element method. Furthermore, the variation of the material properties of granules is modelled by a statistical distribution and included in our numerical simulation.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): Hamburg University of Technology (TUHH)
Type: Article
Journal: Computational Particle Mechanics
Volume: 5
Pages: 297-312
No. of pages: 16
ISSN: 2196-4378
Publication date: 19.09.2017
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Computational Mechanics, Civil and Structural Engineering, Numerical Analysis, Modelling and Simulation, Fluid Flow and Transfer Processes, Computational Mathematics
Electronic version(s): https://doi.org/10.1007/s40571-017-0169-0 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{1261f0bf7ee7457890e8bc1a7e5129f4,
title = "Experimental and numerical characterization of expanded glass granules",
abstract = "In this paper, the material response of expanded glass granules at different scales and under different boundary conditions is investigated. At grain scale, single particle tests can be used to determine properties like Young{\textquoteright}s modulus or crushing strength. With experiments like triaxial and oedometer tests, it is possible to examine the bulk mechanical behaviour of the granular material. Our experimental investigation is complemented by a numerical simulation where the discrete element method is used to compute the mechanical behaviour of such materials. In order to improve the simulation quality, effects such as rolling resistance, inelastic behaviour, damage, and crushing are also included in the discrete element method. Furthermore, the variation of the material properties of granules is modelled by a statistical distribution and included in our numerical simulation.",
keywords = "Contact models, Discrete element method, Oedometer tests, Single particle tests, Triaxial tests",
author = "Chaudry, {Mohsin Ali} and Christian Woitzik and Alexander D{\"u}ster and Peter Wriggers",
note = "Funding information: The support of the DFG (Deutsche Forschungsgemeinschaft) under Grant Nos. DU 405/9-1 and WR 19/55-1 is gratefully acknowledged. The authors have no conflict of interest to declare.",
year = "2017",
month = sep,
day = "19",
doi = "10.1007/s40571-017-0169-0",
language = "English",
volume = "5",
pages = "297--312",
journal = "Computational Particle Mechanics",
issn = "2196-4378",
publisher = "Springer International Publishing AG",
number = "3",
}