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Louis Moresi

Professor of Geophysics University of Melbourne Victoria 3010 Australia +61 4 0333 1413

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In honour of Hans Mühlhaus’ 70th birthday this month, here are some shear band simulations made with Underworld. We are investigating the role of dilatancy in the geometry of the shear bands for a box of material when a small trapdoor is opened.

The extent to which large-scale deformation is needed to release material through the trapdoor depends on how much the material dilates when shear bands form. This is a taster:

Three snapshots of the total shear strain for a model with low dilatancy (A-C) and a model with high dilatancy (D-F)

We’ll be presenting more at the IWBDG-2017 meeting.