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Flac 3D

 

Advanced Three Dimensional Continuum Modeling for geotechnical analysis of rock, soil, and structural support

FLAC3D is a numerical modeling code for advanced geotechnical analysis of soil, rock, and structural support in three dimensions.

FLAC3D is used in analysis, testing, and design by geotechnical, civil, and mining engineers. It is designed to accommodate any kind of geotechnical engineering project where continuum analysis is necessary.

FLAC3D utilizes an explicit finite difference formulation that can model complex behaviors not readily suited to FEM codes, such as: problems that consist of several stages, large displacements and strains, non-linear material behavior and unstable systems (even cases of yield/failure over large areas, or total collapse).




Main Features
  • Large-strain simulation of continua, with interfaces or slip-planes to represent distinct interfaces along which slip and/or separation may occur, thereby simulating the presence of faults, joints, or frictional boundaries
  • Explicit solution scheme that gives stable solutions to unstable physical processes
  • Twelve built-in material models: the "null" model, three elasticity models, and eight plasticity models
  • Optional modules include: thermal and creep calculations, dynamic analysis capability, user-defined constitutive models written in C++, and automatic hexahedral meshing (3DShop)
  • Continuous gradient or statistical distribution of any property may be specified
  • Automatic 3D grid generator using pre-defined shapes to create intersecting internal regions
  • Convenient specification of boundary conditions and initial conditions
  • Water table for effective stress calculations
  • Groundwater flow fully coupled to mechanical calculation (including negative pore pressure, unsaturated flow, and phreatic surface conditions)
  • Structural elements (liners, piles, cables, etc.) that interact with the surrounding rock or soil
  • Built-in programming language (FISH) to add user-defined features
  • Graphical output in six industry-standard image formats and animated output in two (AVI and DCX)
  • External geometry import option for leading Computer-Aided Design (CAD) tools