Authors: Wang, YC; Alonso-Marroquin, F

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Wang, YC & Alonso-Marroquin, F 2008, 'DEM Simulation of Rock Fragmentation and Size Distribution Under Different Loading Conditions', in Y Potvin, J Carter, A Dyskin & R Jeffrey (eds), Proceedings of the First Southern Hemisphere International Rock Mechanics Symposium, Australian Centre for Geomechanics, Perth, pp. 149-156.

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Abstract:
Rock fracture and fragmentation plays an important role in earthquakes, structural engineering and comminution processes. Typically, measured fragment size distribution of a single breaking particle is given by power law relations. Those relations are independent of energy input or loading conditions. In this study, we use ESyS-Particle, the 3D parallel Discrete Element Model (DEM), to simulate rocks as an assemblage of bonded spherical particles. ESyS-Particle takes into account single particle rotation and full set of interactions between bonded particles. We reproduce the fracture process and calculate the size distribution of the fragments using two different loading conditions: 1) slow and quasi-static uniaxial compression of rock-like samples; 2) fast loading by throwing a sphere consisting of small bonded particles at a rigid wall. Realistic fracture patterns and fragment size distribution are obtained.

References:
Evans, D.J. (1977) On the representation of orientation space. Molecular Phys 34, pp. 317–325.
Evans, D.J. and Murad, S. (1977) Singularity free algorithm for molecular dynamic simulation of rigid polyatomice. Molecular Physics 34, pp. 327–331.
Goldstein, H. (1980) Classical Mechanics. 2nd edition, Addison-Wesley.
Kanchibotla, S.S. (2003) Optimum blasting? Is it minimum cost per broken rock or maximum value per broken rock? Fragblast (Rotterdam), 7, pp. 35–48.
Kuipers, J.B. (1998) Quaternion and rotation sequences. Princeton University Press, Princeton New Jersey.
Kun, F. and Herrmann, H.J. (1999) Transition from damage to fragmentation in collision of solids. Physical Review E 59, pp. 2623–2632.
Mora, P. and Place, D. (1993) A lattice solid model for the nonlinear dynamics of earthquakes. International Journal Modern Physics C4, pp. 1059–1074.
Mora, P. and Place, D. (1994) Simulation of the frictional stick-slip instability. Pure and Applied Geophysics 143, pp. 61–87.
Place, D., Lombard, F., Mora, P. and Abe, S. (2002) Simulation of the micro-physics of rocks using LSMearth. Pure and Applied Geophysics 159, pp. 1933–1950.
Thornton, C., Ciomocos, M.T. and Adams, M.J. (2004) Numerical simulations of diametrical compression tests on agglomerates. Powder Technology 140, pp. 258–267.
Wang, Y.C., Abe, S., Latham. S. and Mora, P. (2006) Implementation of particle-scale rotation in the 3-D Lattice Solid Model. Pure and Applied Geophysics 163, pp. 1769–1785.
Wang, Y.C. (2008a) A new algorithm to model the dynamics of 3-D bonded rigid bodies with rotations. Acta Geotechnica, in print.
Wang, Y.C. and Mora, P. (2008b) Elastic properties of regular lattices and calibration of 3-D Discrete Element Model. Journal of Mechanics and Physics of Solids, in review.
Wang, Y.C., Alonso-Marroquin, F. and Mora, P. (2008c) A new Discrete Element Model: particle rotation and parameter calibration, Granular matter, in review.
Wilson, B., Dewers, T., Reches, Z. and Brune, J. (2005) Particle size and energetics of gouge from earthquake rupture zones. Nature 434, pp. 749–752.
Wittel, F., Kun, F., Herrmann, H.J. and Kroplin, B.H. (2004) Fragmentation of Shells. Physical Review Letters 93, pp. 355–504.
Wu, S.Z., Chau, K.T. and Yu, T.X. (2004) Crushing and fragmentation of brittle spheres under double impact test. Powder Technology 143, pp. 41–55.




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