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
  • Web licenses are now available! They are ideal for organizations with many users at different locations and/or for cloud computing....
    Read More
  • Itasca Symposium 2020 Proceedings Download the 2020 Itasca Symposium proceedings and presentations for free....
    Read More
  • Learn More About the Policies We're Updating We’re making updates to our End-User License Agreement, Website Terms of Use, and Privacy Policy....
    Read More

Upcoming Events
15 Jul
Concreep 11+ International Conference - CANCELED
Since 1956, the CONCREEP conference series has remained the key meeting for physicists, mechanicians, and engineers to present and deba... Read More
20 Jul
URTeC 2020
URTeC 2020 in Austin looks to push the boundaries and continue as the premier event focused on the latest science and technology applie... Read More
4 Aug
Deep Foundations Institute S3: Slopes, Slides and Stabilization
Technical Committees of Deep Foundations Institute (DFI) are combining their industry expertise to organize this 2.5-day conference on ... Read More