Geomechanics and Geotechnics

Hypoplastic interface model

Frictional interface model for granular soils based on Hypoplasticity using the hypoplastic UMAT Implementation from the webpage. 

Download under GNU licence: Implementation by Henning Stutz

FRIC and short documentation 

Please refer to the following literature using the model

  • Stutz, H., Mašín, D., Sattari, A. and Wuttke, F. (2017). A general approach to model interfaces using existing soil constitutive models - application to hypoplasticity. Computers and Geotechnics , Volume 87, July 2017, Pages 115-127 (doi: 10.1016/j.compgeo.2017.02.010).
  • Stutz, H., Mašín, D. and Wuttke, F. (2016)  "Enhancement of a hypoplastic model for granular soil-structure interface behaviour", Acta Geotechnica 11, No. 6, 1249-1261.

When using implementations from in your research, please cite it asG. Gudehus, A. Amorosi, A. Gens, I. Herle, D. Kolymbas, D. Mašín, D. Muir Wood, R. Nova, A. Niemunis, M. Pastor, C. Tamagnini, and G. Viggiani. The project. International Journal for Numerical and Analytical Methods in Geomechanics, 32(12):1571-1572, 2008.