Dafalais-Manzari

Description

The SANISAND model (Dafalias & Manzari, 2004) is a stress-ratio controlled, critical state compatible sand model, which takes into account the effect of fabric changes in the multi-axial generalization. One of the merits of this model is that one set of material parameters can be applied to dramatically different stresses and densities. The material parameters have been well calibrated for Toyoura sand. Some material parameters are considered default values for most sands and need not to be determined separately for other sands.

Keywords

  • bounding surface
  • critical state
  • liquefaction
  • effective stress
  • plastic

References

Dafalias, Y.F. & Manzari, M.T. (2004). Simple plasticity sand model accounting for fabric change effects. Journal of Engineering Mechanics 130(6): 622-634.

Cheng, Z., Y. F. Dafalias and M. T. Manzari. (2013) Application of SANISAND Dafalias-Manzari Model in FLAC3D. in Continuum and Distinct Element Numerical Modeling in Geomechanics - 2013, H. Zhu, C. Detournay, R. Hart, and M. Nelson, Eds. Minneapolis: Itasca International, Inc.

Dafalais-Manzari

UDM Version: 4.0
Release Date: Apr 28, 2023

Category: Sand

Software: Download: Contact: Developer:

Latest News
  • Now Available from ITASCA: Innovative Machine Learning Tool for FLAC3D/FLAC2D V9.2 Experience the Future of Geotechnical Modeling with ITASCA Software V9.2: Introducing Machine Learning Models...
    Read More
  • Experience the Future of Geotechnical Modeling with ITASCA Software V9.2 Experience the Future of Geotechnical Modeling with ITASCA Software V9.2: Introducing Machine Learning Models and...
    Read More
  • Thank You to our Summer Interns ITASCA Minneapolis is lucky to have welcomed nine amazing and dedicated summer interns in our...
    Read More