GGSD Program Details for FLAC

FLAC

Category	Numerical analysis (soil)
Publisher	ITASCA Consulting Group, Inc.
Platform	DOS, Win95/98, WinNT, UNIX, SUN
Status	Commercial
Description	FLAC is an explicit 2D finite difference program suited to the modelling of geomechanical continuum problems that consist of several stages, such as sequential excavations, backfilling and loading. The formulation can accommodate large displacements and strains and non-linear material behaviour, even if yield or failure occurs over a large area or if total collapse occurs. The explicit solution scheme gives a stable solution to unstable physical problems. Library of material models (isotropic or transversely isotropic elastic, Mohr-Coulomb, Drucker-Prager, Cam-Clay, ubiquitous joint, double yield and strain softening). Several automatic grid generators. Statistical distribution of any property. Groundwater flow with full coupling to mechanical calculation including negative pore pressure for saturated or partially saturated soil. Consolidation problems can also be modelled. The flow model can be run independently (with automatic phreatic surface calculation) from the mechanical calculation. Structural elements (including non-linear cables) with generalised coupling to continuum. Built-in language to add user defined features (new constitutive models, variables, commands) and control data inputs, analysis, printing and plotting. Sliding and opening interfaces between objects (continuum and structural). Coupling to infinite elastic boundary. Optional modules are available for the modelling of creep, dynamic and thermal problems. Tunnel Support Modeller (TSM) is an option to assist users in the design of deep tunnels in rock. TSM performs 2D analyses on a tunnel section to evaluate different support alternatives. VisualFLAC is a tool designed to improve grid creation process (available as an optional feature). A reduced function version is also available for purchase.
Cost	US Dollars 6,250
Data formats supported	None stated
Supplier in Brazil	GEOCOMPANY Tecnologia, Engenharia e Meio - Ambient
Supplier in Canada	Itasca Consulting Canada Inc
Supplier in Chile	Itasca S.A.
Supplier in France	Itasca Consultants S.A.
Supplier in Germany	Itasca Consultants GmbH
Supplier in Greece	Neotek
Supplier in Japan	CRC Research Institute Inc
Supplier in South Africa	Itasca Africa (pty) Ltd
Supplier in Spain	Itasca Consultores S.L.
Supplier in Sweden	Itasca Geomekanik AB
Supplier in United Kingdom	Mott MacDonald
Supplier in United States of America	Hydrologic Consultants, Inc. (HCI)
Supplier in United States of America	ITASCA Consulting Group, Inc.