Category Numerical analysis (soil)
Publisher  Emerald Soft 
Platform Win95/98, WinNT, Mac, PowerMac
Status Commercial
Description PENTAGON-3D is a finite element analysis program for 3D continuum problems including tunnels, earth retaining structures, structural mechanics and seepage flow. It has various elements such as solid (4, 6, 8, 16, 20-nodes), interface, shell (3, 4-nodes), frame (2-nodes), truss (2-nodes) and spring (2-nodes) elements. It can model about 3,000 to 8,000 8-node solid elements in 64 Mbyte RAM and more according to the RAM size. Models: linear-elastic, Mohr-Coulomb, Hoek-Brown, general anisotropic, orthotropic, transversely isotropic and hyperbolic (loading-unloading-reloading) are available to model soil, rock and other construction materials. Available load conditions are point load, surface pressure, body force, prestress, and distributed residual force. Any type of element can be added, removed and changed at any construction stage and seepage stage. Seepage analysis is available as the excavation and embankment stages progress. Darcy flow is available for confined/unconfined flow and saturated/unsaturated flow. Boundary conditions such as head difference, pumping, evaporation and precipitation are available. Boundary conditions can be modified at any stage. The hydraulic gradient can be coupled with the mechanics as a form of seepage force. The pre-processor, PENTMESH is used to create the models such as advancing tunnels, crossing tunnels, earth retaining structures and embankments. The preprocessor produces the finite element geometry and the whole input data including the construction stages such as element addition/removal, boundary conditions and load. The post-processor, PENPOST, displays the color graphical results in 3D that can be translated, rotated, zoomed and shaded in a GUI environment. Mirror display and history tables are also available.
Data formats supported None stated
Supplier in South Korea  Emerald Soft 

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