New in v9.3

The latest updates to ITASCA software products such as FLAC3D, FLAC2D, 3DEC, PFC, and MassFlow now include point releases (e.g., 9.1, 9.2) between major versions (e.g., 9.0, 10.0). These point releases bring significant benefits, especially for subscription license holders.

Subscription license holders enjoy seamless access to point releases at no additional cost. These point releases are packed with new features and capabilities developed in response to user feedback and industry advancements. By staying current with point releases, subscribers can leverage the latest tools and functionalities, enhancing their productivity, efficiency, and competitiveness.

Perpetual license holders also benefit from continuous support within their software version's support period. While they may not receive point releases, they still qualify for bug fix updates and minor improvements, maintaining stability and reliability in their software environment.

New in Sketch

Applies to FLAC2D

  • Improvements the joint-set wizard
  • Added a wizard to generate DFNs (discrete fracture networks)
  • Added a wizard to generate Voronoi- or tetrahedral-shaped BBM (bonded block models) based on zone-joints
  • Can now create points and edges from table in Sketch

Contact Models

Applies to 3DEC

  • Velocity weakening
    • The Velocity Weakening joint model is similar to a slip-softening model, except that the friction reduces as a function of increasing velocity rather than slip distance.

Structural Elements

Applies to FLAC3D and 3DEC

  • Rapid Tool for Cable Bolt Properties from Pullout Calibration
  • New bar chart for 1D structural elements

New Examples

Applies to FLAC2D

  1. Factor of Safety Calculated for Various Jointed Rock Slopes
  2. Rainfall on a Slope
  3. Tunnel Through a Rock (Voronoi)
  4. Tailing Dam Static Liquefaction
  5. Dewatered Construction of a Braced Excavation
  6. Uniaxial Compression Strength (UCS) Test on a Fractured Sample

Applies to FLAC3D

  1. Assessment of Fault Slip Potential from Sill Pillar Mining

And more ...

Applies to FLAC2D

  • Can now generate topography (zones) from a table of x, y coordinates

Applies to 3DEC

  • Added a structure hybrid import command to create hybrid bolt elements from an outside source (e.g., DXF, STL, ITASCA geometry)
  • Added a progress bar for joint plotting
Software Downloads

FLAC2D Releases


Latest News
  • WEBINAR: Solving Geothermal Challenges with XSite Numerical Modeling ITASCA Software and Baker Hughes are hosting a collaborative webinar to demonstrate how combining advanced...
    Read More
  • Twin Ports Interchange Project Named Winner of ACEC/MN Grand Award Innovative ground improvement strategy secures long-term stability for the region's busiest artery for commerce and...
    Read More
  • Summer Intern Spotlight ITASCA Minneapolis had another group of excellent summer interns this year across our consulting, software,...
    Read More

Upcoming Events
11 Aug
ITASCA Joins Caving 2026 as a Main Sponsor
We are pleased to announce that ITASCA will be participating as a Main Sponsor in Caving 2026, the leading international conference ded... Read More
15 Sep
ITASCA at EUROCK 2026: Advancing Innovation in Rock Engineering
ITASCA is pleased to announce its participation in EUROCK 2026 – ISRM Regional Symposium, taking place from 15–19 September 2026 in Sko... Read More
20 Sep
ITASCA to Participate in CouFrac 2026
ITASCA will be participating in CouFrac 2026, taking place from 20–23 September 2026 in Uppsala, Sweden. The conference brings together... Read More