Why Choose FLAC3D?

EASE-OF-USE

Interactively create models from CAD files (DXF, STL), sketching, or images
Automatic structured and unstructured mesh generation
Extrude linearly and along curves NEW
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 NEW
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 Itasca software

New solution optimization enables 2-3 times faster static modeling and dynamic time steps up to 2.6 times larger than before NEW
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 NEW
Faster implicit solvers for fluid flow and thermal calculations NEW
Fast analytical temperature calculation for specified sources NEW

Large-strain simulations to capture the full extent of model deformation
Includes 27 built-in constitutive models:
- Null
- Elastic
- Orthotropic Elastic
- Anisotropic
- Druker-Prager
- Mohr-Coulumb
- Ubiquitous-Joint
- Ubiquitous-Anisotropic IMPROVED
- Strain-Softening/Hardening
- Double-Yield
- Modified Cam-Clay
- Swell
- Bilinear Strain-Softening/Hardening Ubiquitous-Joint
- Hoek-Brown
- Hoek-Brown-PAC
- CYSoil
- CHSoil
- Plastic-Hardening IMPROVED
- Mohr-Coulomb-Tension
- Soft-Soil
- Finn
- NorSand
- P2PSand
- IMASS (option)
- Von-Mises NEW
- Columnar-Basalt NEW
- Concrete NEW
Non-linear deformable ground support elastic and elastoplastic NEW structures
Advanced plotting tools to understand your model results and for working with hundreds of plots on real projects NEW
FISH, Itasca’s scripting language, provides 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)
All model changes (via mouse, commands, or scripting) are recorded for repeatability, learning, and re-use
Import pore pressures values to gridpoints from MINEDW *.mdp or CSV files (x, y, z, pore pressure) NEW

Highly customizable UI NEW and modeling
All licenses permit two instances of FLAC3D to be run on the same computer
Access and modify almost all variables (including “EXTRA” variables for zones, piles, gridpoints, etc.) via FISH/Python
Import and export any ASCII data format
UDMs can be written in C++ using Visual Studio template

Static and dynamic stability
Automatic factor of safety analysis (shear strength reduction method)
Back-analyze failure and calibrate forward-prediction
Parametric studies via FISH or Python
Service limit state (SLS) and ultimate limit states (ULS) based on displacements
Automatic zone relaxation simulates gradual excavation for construction sequencing
Simulate material damage and failure
Effective stress using conventional or complex pore pressure distributions
Fluid flow, seepage, and consolidation
Coupled ground-structure interaction (beams, cables, piles, shells, geotextiles, liners)
Simulate discontinuities (faults, joints, bedding planes, and construction boundaries) using interfaces; capture yielding or failure, shear displacements, opening, and closure along them
Static and dynamic liquefaction