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: 28 Apr 2023

Category: Sand

Software: Download: Contact: Developer:

Latest News
  • Newsletter October 2023 ...
    Read More
  • Newsletter August 2023 ...
    Read More
  • New General Manager for ITASCA Sweden We have appointed a new GM in Sweden!...
    Read More

Upcoming Events
25 Feb
Débuter avec FLAC2D/FLAC3D
This training is an introduction to continuous modeling with FLAC2D and FLAC3D. At the end of the course, participants will master the ... Read More
11 Mar
Getting Started with 3DEC
Objectives of the training: Understand the 3DEC numerical approach and the types of problems it can solveKnow how to manipulate the 3DE... Read More
26 Mar
Python in Itasca Software
This course provides an overview of the Python programming language in Itasca software.The course covers major applications of Python t... Read More