zone property command

Syntax

zone property <density f > keyword ... <range>

Make a constitutive model(s) property assignment. Properties are name-value pairs where the name is the keyword given in the command and the value type is specific to the property. The assignment will affect any zone whose constitutive model includes the property named (noting that some properties, such as bulk, for instance, appear in many constitutive models). Limiting a property assignment to zones that have a particular constitutive model assignment is done using the range component of the command. For instance,

zone property bulk 3000 range cmodel mohr-coulomb

The range component limits the bulk property specification to zones with a Mohr-Coulomb (mohr) constitutive model assignment.

The special density keyword can be given as well, assigning density to zones; this is not a constitutive model property but stored within the zone class.

All constitutive models have properties associated with them.

There are 23 basic mechanical constitutive models in FLAC (not including null, which does not appear below) and 13 option-specific mechanical models. All are classified as follows: elastic, elastic-plastic, dynamic, creep, thermal.

Elastic Mechanical Models

• Anisotropic

  The anisotropic (transversely-elastic) model: properties, description.

• Elastic

  The isotropic elastic model: properties, description.

• Orthotropic

  The orthotropic elastic model: properties, description.

Elastic-Plastic Mechanical Models

• Columnar-Basalt

  The columnar-basalt (COMBA) model: properties, description.

• Concrete

  The concrete model: properties, description.

• Cap-Yield

  The cap-yield (CYSoil) model: properties, description.

• Cap-Yield-Simplified

  The simplified Cap-Yield (CHSoil) model: properties, description.

• Double-Yield

  The double-yield model: properties, description.

• Drucker-Prager

  The Drucker-Prager model: properties, description.

• Hoek-Brown

  The Hoek-Brown model: properties, description.

• Hoek-Brown-PAC

  The Hoek-Brown-PAC model: properties, description.

• Modified-Cam-Clay

  The modified Cam-Clay model: properties, description.

• Mohr-Coulomb

  The Mohr-Coulomb model: properties, description.

• Mohr-Coulomb-Tension

  The Mohr-Coulomb tension (MorhT) model: properties, description.

• NorSand

  The NorSand model: properties, description.

• Plastic-Hardening

  The plastic hardening model: properties, description.

• Soft-Soil

  The soft-soil model: properties, description.

• Softening-Ubiquitous

  The bilinear strain-softening/hardening ubiquitous-joint model: properties, description.

• Strain-Softening

  The strain-softening/hardening Mohr-Coulomb model: properties, description.

• Swell

  The swell model: properties, description.

• Ubiquitous-Joint

  The ubiquitous-joint model: properties, description.

• Ubiquitous-Anisotropic

  The anisotropic-elasticity ubiquitous-joint model: properties, description.

• Von-Mises

  The von-mises model: properties, description.

Dynamic Option Model

• Finn

  The Finn model: properties, description.

• P2PSand

  The P2PSand model: properties, description.

IMASS Option Model

• IMASS

  The IMASS model: properties, description.

Creep Option Models

• Burgers

  The Burgers model: properties, description.

• Burgers-Mohr

  The Burgers-Mohr model: properties, description.

• Columnar-Basalt

  The columnar-basalt (COMBA) model: properties, description.

• Maxwell

  The Maxwell (classic viscoplastic) model: properties, description.

• Power

  The power model: properties, description.

• Power-Mohr

  The power-Mohr model: properties, description.

• Power-Ubiquitous

  The power-ubiquitous model: properties, description.

• Soft-Soil-Creep

  The soft-soil-creep model: properties, description.

• WIPP

  The WIPP model: properties, description.

• WIPP-Drucker

  The WIPP-Drucker model: properties, description.

• WIPP-Salt

  The WIPP-salt model: properties, description.

Thermal Option Model

• Hydration-Drucker-Prager

  The Hydration-Drucker-Prager model: properties, description.