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Minimum pressure:

*Material, ...
*Min pressure
<minimum pressure>

This parameter is used to correct small effective pressures in case barotropic constitutive models are used. Set this pressure to the minimum allowed pressure (mechanical sign convention, i.e. give a negative value). This parameter should be set for the following materials:

Model Section
Hypoplasticity + Intergranular Strain 5.5.2.3
Hypoplasticity + Intergranular Strain Anisotropy 5.5.2.6
Sanisand 5.5.2.7
Modified Cam Clay 5.5.2.10
Anisotropic Viscous ISA 5.5.2.12
High Cycle Accumulation model for sand 5.5.2.9
... coupled with Hypoplasticity + Intergranular Strain
... coupled with Sanisand
High Cycle Accumulation model for clay 5.5.2.16