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Tomographic analysis of jammed ellipsoid packings

Schaller, F.M., Neudecker, M., Saadatfar, M., Delaney, G., Mecke, K., Schröder-Turk, G.E. and Schröter, M. (2013) Tomographic analysis of jammed ellipsoid packings. In: 7th International Conference on Micromechanics of Granular Media: Powder and Grains 2013, 8 - 12 July 2013, Sydney, Australia pp. 377-380.

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Disordered packings of ellipsoidal particles are an important model for disordered granular matter. Here we report a way to determine the average contact number of ellipsoid packings from tomographic analysis. Tomographic images of jammed ellipsoid packings prepared by vertical shaking of loose configurations are recorded and the positions and orientations of the ellipsoids are reconstructed. The average contact number can be extracted from a contact number scaling (CNS) function. The size of the particles, that may vary due to production inaccuracies, can also be determined by this method.

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