Abstract
The friction coefficient of ice on ice is usually modeled as a constant. However, theory and experimental data show that ice-ice friction depends on the speed of sliding. In this paper we incorporate a rate-dependent friction coefficient into 2D discrete element method simulations of ice ensemble behaviour. Friction is high (0.7) at low sliding speeds (<10-6 ms-1), low (0.1) at high sliding speeds (>10-2 ms-1) and decreases log-linearly between these values. We show qualitatively and quantitatively how this affects the overall dynamics of a shear box experiment.
| Original language | English |
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| Publication status | Published - 14 Jun 2015 |
| Event | Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions - Duration: 14 Jun 2015 → … |
Conference
| Conference | Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions |
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| Period | 14/06/15 → … |