- Discontinuous medium modeled as an assemblage of convex polyhedra or concave polyhedra (formed by joining together convex polyhedra); blocks may be rigid or deformable
- Discontinuities treated as boundary conditions between blocks
- Motion along discontinuities governed by linear and non-linear force-displacement relations for movements in both the normal and shear direction
- Material models include: elastic, anisotropic, Mohr-Coulomb, Drucker Prager, bilinear plasticity, strain softening, creep, and user-defined
- Modeling attributes may include absorbing boundaries and wave input for fully dynamic response; "null" blocks for excavation and backfill simulation; structural elements with general coupling to blocks
- Extensive, fast interactive menu-based 3D OpenGL on-screen graphics. Available plots include: joint structure; block structure; displacement and velocity vectors and contours; joint plane displacements and stresses; structural element displacements and stresses; and, fluid flow apertures and velocities. Hard copy graphics are available in several industry standard formats
- Utilities include a preprocessor that reads AutoCAD files and outputs 3DEC data files for polyhedra generation; tunnel generator and statistically-based joint-set generator
- Built-in programming language (FISH) provides powerful flexibility to customize analyses
- Explicit time marching solution that provides realistic path-dependent post peak failure behavior in joints and plastic zones
- Modeling "infinite domain" problems using inner/outer region coupling and automatic radially-graded mesh generation
- Effective stress calculation performed using pore-pressure gradients
- Joint fluid flow with thermal and mechanical coupling
- Analytic and numerical thermal calculations with mechanical and fluid coupling
- Structural elements with cables, beams, and liners
- Single precision, double precision, and 64bit versions are supplied
- Automatic mesh generation in fully deformable blocks
- Automatic time step calculation
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Bench Failure in an open pit
Fault Planes in pit slope
This figure shows 3DEC's ability to combine images from 3DEC and external graphics
Corner section of Parthenon used in dynamic analysis
Bulk head masonry wall
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