In the Geotechnical Analysis add-on, the high-quality material model "Modified Hardening Soil Model" is available. This material model is suitable for a variety of soils and is able to appropriately represent the following properties of the real soil.
- Stress dependence of soil stiffness
- Load path dependence of soil stiffness
- Plastic strains even before reaching the limit condition
- Increasing shear resistance with increasing mesh refinement
- Increasing yield strength with increasing stress until reaching the limit yield condition
- Failure criterion according to Mohr-Coulomb
You can find more information about this material model and the definition of the input in RFEM in the corresponding chapter of the online manual for the Geotechnical Analysis add-on.