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FLAC - Options
Options in FLAC are sold separately from the code license, allowing users to extend the program’s capabilities as meets their own analysis needs. Modules available as options for FLAC include: Dynamic,Creep, Two-Phase Flow, Thermal, and User-Defined C++ Constitutive Models.
The dynamic analysis option permits two-dimensional, plane-strain, plane-stress, or axisymmetric, fully dynamic analysis with FLAC. This formulation can be coupled to the structural element model (soil-structure interaction), to the groundwater flow model (liquefaction), and to the optional thermal model.
This FLAC option can be used to simulate the behavior of materials that exhibit creep (i.e., time-dependent material behavior). Eight creep models are included: viscoelastic, two-component power-law, WIPP, PWIPP, Burgers, Mohr-Coulomb power law, CWIPP (crushedsalt), and a NEW power-law viscoplastic creep with ubiquitous joints.
TWO-PHASE FLUID FLOW OPTION
The two-phase flow option in FLAC allows numerical modeling of the flow of two immiscible fluids through porous media. The formulation applies to problems in which a fluid displaces another, and simultaneous flow of the two fluids takes place in the porous medium with no mass transfer between them.
The thermal analysis option in FLAC incorporates both the conduction (transient heat conduction and the development of thermally induced displacements and stresses) and advection (transport of heat by convection; it can simulate temperature-dependent fluid density and thermal advection in the fluid) models.
C++USER DEFINED CONSTITUTIVE MODEL OPTION
With this option, new constitutive models can be created for use in FLAC. The model is written in C++, compiled as a DLL file, and loaded as needed. This feature allows users to create models that exhibit customized, non-linear, path-dependent material behavior.