Microscopic study of granular material behaviours under general stress paths
Yang, Dunshun (2014) Microscopic study of granular material behaviours under general stress paths. PhD thesis, University of Nottingham.
The granular material behaviour is determined by the local contact behaviour between particles and the spatial arrangement of particles. Investigation of particle-scale mechanism provides fundamental insights into global granular material behaviour. A multi-scale investigation has been carried out to study granular material behaviour under general stress paths using discrete element method (DEM). The commercial software Particle Flow Code in Three Dimensions (PFC3D) is employed for numerical simulations and the linear contact model is used to describe local contact behaviour. General loading paths were achieved by implementing a boundary control programme with independent control of both the magnitudes of three principal stresses and their principal directions.
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