Abstract
The constitutive model of the interface layer is first discussed using the concept of the critical state model. Next, the dynamic dilatancy effect occuring in rapid flows of granular materials is described by applying the viscoplastic model. It is assumed that the critical state line is a unique function of actual material density. Static and kinematic conditions at the interface are discussed and the effect of strain rate on dilatancy or transverse pressure is analysed.
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Mróz, Z. (1997). Constitutive Modelling of Response of Granular Interface Layers. In: Fleck, N.A., Cocks, A.C.F. (eds) IUTAM Symposium on Mechanics of Granular and Porous Materials. Solid Mechanics and its Applications, vol 53. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5520-5_7
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DOI: https://doi.org/10.1007/978-94-011-5520-5_7
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