Level set discrete element method for three-dimensional computations with triaxial case study

In this paper, we outline the level set discrete element method (LS-DEM) which is a discrete element method variant able to simulate systems of particles with arbitrary shape using level set functions as a geometric basis. This unique formulation allows seamless interfacing with level set-based char...

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Veröffentlicht in:Journal of the mechanics and physics of solids 2016-06, Vol.91, p.1-13
Hauptverfasser: Kawamoto, Reid, Andò, Edward, Viggiani, Gioacchino, Andrade, José E.
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Sprache:eng
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Zusammenfassung:In this paper, we outline the level set discrete element method (LS-DEM) which is a discrete element method variant able to simulate systems of particles with arbitrary shape using level set functions as a geometric basis. This unique formulation allows seamless interfacing with level set-based characterization methods as well as computational ease in contact calculations. We then apply LS-DEM to simulate two virtual triaxial specimens generated from XRCT images of experiments and demonstrate LS-DEM's ability to quantitatively capture and predict stress–strain and volume–strain behavior observed in the experiments.
ISSN:0022-5096
DOI:10.1016/j.jmps.2016.02.021