Why Choose FLAC?

POWERFUL

  • Numerical stability with large displacements, including collapse
  • Very large models (64-bit)
  • 19 built-in material behaviors; more available with options
  • Automatic factor-of-safety analysis
  • Coupled or uncoupled groundwater flow
  • Optional dynamic, thermal, and creep solution analyses
  • Solution analyses can be coupled to the mechanical analysis within FLAC
  • Models can be be coupled to another instance of FLAC or to PFC2D (requires PFC2D license)
  • Complex materials and pore pressure distributions
  • Assess service limit state criteria
  • Scripting with FISH to access, monitor, and control nearly every model and solution parameter
  • Customize constitutive models using FISH
  • Customize constitutive models using optional C++ User-Defined Models (UDM)

EFFICIENT

  • Multi-core processing
  • Optimized solution algorithms
  • Customized material behaviors using optional C++ UDMs

PROVEN

  • Tested against analytical solutions
  • Used by Itasca’s own consulting engineers and scientists
  • Large repository of examples and validations, with 1000’s of published articles and conference papers
  • Thousands of licenses used worldwide by industry, universities, and government agencies

RELIABLE

  • Realistic physical solutions
  • Natural evolution of failure
  • Transparent methodology with all equations and algorithms fully documented
  • Built-in constitutive models are open-source; no black boxes
  • Live, person-to-person software support provided by experienced engineers and software developers
  • Extensive manuals and documentation
  • Automated software update notification

FLEXIBLE

  • General by design
  • Access to almost all internal variables via the embedded FISH scripting language
  • CAD interoperability
  • Import and export data using ASCII
  • Human-readable data files (ASCII)
  • Users may write their own constitutive models using FISH or the optional C++ UDM
  • Standard License is portable between computers and users
  • Network licenses are available
  • License leases are available on monthly or annual terms

ECONOMICAL

  • No CPU limits
  • No annual maintenance fee
  • 50% discount for academic institutions
  • Coupled or uncoupled steady-state and transient fluid flow is included
  • Two instances of FLAC can be run on a single computer with a standard license
  • 19 constitutive models, including Hoek-Brown, Swell, Plastic Hardening, and NorSand
  • Includes 64-bit version, parallel-processing optimization, and FISH scripting
  • Free standard technical support and software updates

Latest News
  • 2020 Peter A. Cundall Award ...
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  • Itasca Symposium 2020 Technical Papers and Statistics ...
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  • Itasca Symposium 2020 - Registration Now Open! Registration is now open for the Fifth International Itasca Symposium....
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Upcoming Events
17 Feb
Itasca Symposium 2020
The Fifth International Itasca Symposium will be held at the University of Vienna (Austria). The Symposium will features the applicatio... Read More
9 Mar
FLAC Introductory Training - Minneapolis
FLAC is numerical modeling software for advanced geotechnical analysis of soil, rock, groundwater, and ground support in two dimensions... Read More
16 Mar
FLAC3D Introductory Training - Minneapolis
Three days of general feature training addressing basic concepts and recommended procedures for geotechnical numerical analysis.... Read More