Geomechanics Module
For users of the Geomechanics Module, COMSOL Multiphysics® version 5.5 brings a mean-stress-based tension cut-off criterion and three new tutorial models. Browse these geomechanics features and more below.
Mean Stress Tension Cut-Off Criterion
In the Mohr–Coulomb and Drucker–Prager models for soil plasticity, a mean-stress-based tension cut-off criterion has been added. This method for suppressing tensile stresses is more stable from a numerical point of view.
Setting the soil plasticity for a model
Selecting a mean stress cut-off criterion for a Drucker–Prager soil plasticity model.
New Tutorial Models
Version 5.5 brings three new tutorial models.
Triaxial Test with Hardening Soil Material Model
Hardening soil under axial compression
Axial stress vs. axial strain for a hardening soil under axial compression.
Application Library Title:
triaxial_test_hardening_soil
Isotropic Compression Test for Structured Clays
Isotropic compression for different levels of cement
Void ratio as a function of pressure for different levels of cement content.
Application Library Title:
isotropic_compression_mscc
Triaxial and Oedometer Test with Modified Cam–Clay Material Model
Volumetric vs. axial strain
Volumetric strain vs. axial strain for two different values of the overconsolidation ratio.
Application Library Title:
triaxial_and_oedometer_test_mcc