- document
-
Lazari, Maria (author), Sanavia, Lorenzo (author), di Prisco, Claudio (author), Pisano, F. (author)This paper reappraises Perzyna-type viscoplasticity for the constitutive modelling of granular geomaterials, with emphasis on the simulation of rate/time effects of different magnitude. An existing elasto-plastic model for sands is first recast into a Perzyna viscoplastic formulation and then calibrated/validated against laboratory test...journal article 2018