Title
Clay Hypoplasticity (Mašín, 2014)

Description
Clay hypoplasticity is an advanced incrementally non-linear constitutive model proposed by Mašín (2014) based on critical state soil mechanics developed specifically for simulation of fine-grained materials. Its response has been validated using a number single and finite element simulations of various geotechnical problems, both onshore and offshore. When combined with so-called intergranular strain concept (Niemunis and Herle, 1997), it is capable of predicting small strain stiffness degradation and cyclic loading effects.
Hello Prof. Masin,
Is it possible to implement hypoplasticity into ABAQUS by vumat? If so, is there any VUMAT of ABAQUS availble?