| Reference : A Discrete Element Framework for Modeling the Mechanical Behaviour of Snow PART I: Me... |
| Scientific journals : Article | |||
| Engineering, computing & technology : Materials science & engineering | |||
| Computational Sciences | |||
| http://hdl.handle.net/10993/45219 | |||
| A Discrete Element Framework for Modeling the Mechanical Behaviour of Snow PART I: Mechanical Behaviour and Numerical Model | |
| English | |
Kabore, Brice Wendlassida  [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >] | |
| Peters, Bernhard [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE) >] | |
| Michael, Mark [] | |
| Francois, Nicot [] | |
| 7-Apr-2021 | |
| Granular Matter | |
| Springer | |
| 23 | |
| 2 | |
| 42 | |
| Yes | |
| International | |
| 1434-5021 | |
| 1434-7636 | |
| Germany | |
| [en] Snow Behaviour, Micro-mechanical Model, Brittle Fracture, Ductile Failure, Discrete Element Method (DEM), Ice, micro-structure | |
| [en] A framework for investigating the mechanics of snow is proposed based on an advanced
micro-scale approach. Varying strain rates, densities and temperatures are taken into account. Natural hazards i.e. snow avalanches are triggered by snow deforming at low rates, while a large group of industrial applications concerning driving safety or winter sport activities require an understanding of snow behaviour under high deformation rates. On the micro-scale, snow is considered to consist of ice grains joined by ice bonds to build a porous structure. Deformation and failure of bonds and the inter-granular collisions of ice grains determine the macroscopic response under mechanical load. Therefore, this study proposes an inter-granular bond and collision model for snow based on the discrete element method (DEM) to describe interaction on a grain-scale. It aims at predicting the mechanical behaviour of ice particles under different strain rates using a unified approach. Thus, the proposed algorithm predicts the displacement of each individual grains due to inter-granular forces and torques that derive from bond deformation and grain collision. For this purpose, the inter-granular characteristics are approximated by an elastic viscous-plastic material law which is based on the temperature-dependent properties of poly-crystalline ice Ih. | |
| General public | |
| http://hdl.handle.net/10993/45219 | |
| 10.1007/s10035-020-01083-1 | |
| FnR ; FNR10377358 > Bernhard Peters > SnowDEM > Development of a microstructure based discrete element snow model for engineeringapplications (SnowDEM) > 15/10/2016 > 14/10/2019 > 2015 |
| File(s) associated to this reference | ||||||||||||||
|
Fulltext file(s):
| ||||||||||||||
All documents in ORBilu are protected by a user license.
