Why Choose FLAC2D?

EASE-OF-USE

Interactively create models from CAD files (DXF, STL), geometry sketching, or images
Automatic structured and unstructured mesh generation
Skinning to automatically identify model boundaries to set boundary conditions
Interactively assign groups, constitutive models, and properties/distributions
Built-in database to save/import/export material properties
Automatic stress initialization
Intuitive commands are easy to learn
Most UI interactions are automatically translated into commands, which can be saved to a datafile and re-used
Built-in help / command auto-complete
Advanced built-in text editor makes creating and running models simple
With Version 9’s common UI, seamlessly move between programs or easily couple to other licensed (or demo) Itasca software

Multi-threaded to utilize the full power of your computer for faster solutions
Multi-threaded FISH Lists and Operators to query or modify the model incredibly quickly, even while cycling
New Maxwell damping for 10-200x faster performance for dynamic models
FLAC2D plane-strain or axisymmetric models run up to 2-5x faster than equivalent FLAC3D models
New, faster implicit solvers for fluid flow and thermal calculations

Large-strain simulations to capture the full extent of model deformation
Mixed and Nodal Mixed Discretization (NMD) for accurate plasticity calculations
Includes over 20 built-in constitutive models for soil, rock, and concrete
Built-in liquefaction models P2P-Sand and NorSand with PM4Sand, PM4Silt, and UBCSAND liquefaction models coming
Advanced plotting tools to understand model results and for working with hundreds of plots on real projects
FISH, Itasca’s scripting language, provides you with unparalleled control over, and customization of, the model
Built-in Python 3.10 scripting includes SciPy for plotting, NumPy for computing, and Pyside for UI customization
Statistical generation tools for Discrete Fracture Networks (DFNs)

Highly customizable UI and modeling
All licenses permit two instances of FLAC2D to be run on the same computer
Store custom model data via “Extra” variables, for nearly all model elements, that can be read, written to, and plotted
Import and export any ASCII data format
Optional user-defined constitutive models (UDM) can be written in C++ using Visual Studio template

Plane-strain
Axisymmetric
Static stability
Dynamic (option) stability
Automatic factor of safety analysis (shear strength reduction method)
Back-analyze failure and calibrate forward-prediction
Service limit state (SLS) and ultimate limit states (ULS) based on displacements
Zone relaxation simulates gradual excavation for construction sequencing, , including out-of-plane excavation
Simulate material damage, and failure
Effective stress using conventional or complex pore pressure distributions
Fluid flow (single-phase)
Seepage and consolidation
Model ground support correctly with coupled ground-structure interaction (beams, cables, piles/rockbolts, and liners are available)
Simulate discontinuities (faults, joints, bedding planes, and construction boundaries) using interfaces; capture yielding or failure, shear displacements, opening, and closure along them
Static liquefaction
Dynamic (option) liquefaction