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دانلود نرم افزار ITASCA FLAC 2D V5.0.355

FLAC (Fast Lagrangian Analysis of Continua) is a powerful two-dimensional continuum code for modeling soil, rock and structural behavior. Used interactively or in batch mode, FLAC is a general analysis and design tool for geotechnical, civil, and mining engineers that can be applied to a broad range of problems in engineering studies. The explicit finite difference formulation of the code makes FLAC ideally suited for modeling geomechanical problems that consist of several stages, such as sequential excavation, backfilling and loading The formulation can accommodate large displacements and strains and non- linear material behavior, even if yield or failure occurs over a large area or if total collapse occurs.

MAIN FEATURES

* Large strain simulation of continua, with optional interfaces
* Explicit solution scheme, giving a stable solution to unstable physical processes
* Library of constitutive models
* Statistical distribution of any property
* Structural elements (including non-linear cables), with general coupling to the continuum, shell elements in FLAC3D
* Built-in language to add user defined features (FISH)
* Groundwater flow with full coupling to mechanical calculations.

OPTION

* Dynamic Analysis - allows modeling of the full dynamic response of a system to be simulated in the time domain
* Thermal Analysis - allows the simulationof transient heat conduction in materials and the development of thermally induced displacement and stress
* Creep Analysis - can be used to simulate the behavior of materials that exhibit creep, that is, time-dependent material behavior.

NEW FEATURES

Full Graphics Interface - new graphical interface, the (Graphical Interface for Itasca Codes), makes all features in available by using graphical tools. (The command-line input is still available.) New features in the include: a grid library that helps users create common types of geo-engineering grids (e.g., retaining walls, slopes, tunnels, dams); use of digitized plots or imported graphics files to guide the grid generation graphically; and access to a database of material properties.

All commands that are available to users in previous versions of FLAC are now accessible via menu- and mouse-driven operations in the GIIC. The command-line output of the code is available for viewing via a pane in the GIIC. Through the use of multi-paned windows that may be re-sized or minimized, users can customize the modeling environment to match their individual needs and preferences.

The GIIC is a JAVA-based application that runs independently of the modeling code; data are exchanged directly between FLAC and the GIIC, allowing the user to obtain and manipulate model results without interfering with the solution process. Eventually, all Itasca codes will accessible with the GIIC.

Double-Precision Arithmetic Version - Version 4.0 includes a double-precision executable code as well as a single-precision code. The double-precision version provides more accurate solutions for cases in which the accumulated value of a variable after many thousands of timesteps is much larger than the incremental change in the variable (e.g., an accumulated value for displacement that is roughly six orders of magnitude larger than the incremental value in a creep calculation). The double-precision version is also recommended for models with grids containing zones with coordinates that are large compared to typical zone dimensions.

Two-Phase Flow and Capillary Effects - Available as a new optional feature, Version 4.0 can perform fluid flow and fully coupled simulations in which two immiscible fluids (with optional capillary pressure) are present within a porous medium. Two-phase flow processes and capillary effects have important applications in fields as diverse as the oil industry (gas drive), agriculture (flow in the vadose zone), pollution control, radioactive waste disposal and slope stability. In the FLAC formulation, the two fluids are considered slightly compressible (i.e. spatial variations of densities are neglected). The capillary pressure and relative permeability laws are built-in functions of the van Genuchten form. The non-linear partial differential equations for two-phase flow are solved using an explicit finite difference scheme with upstream weighting technique. The mechanical coupling uses Bishops effective stresses, and solid grains are assumed to be incompressible, as in previous FLAC versions.

Ability to link to other Itasca codes via TCP/IP connection - Data can be passed rapidly between two or more Itasca codes running on the same machine or on separate machines with a network connection. The upcoming versions of PFC and FLAC3D also allow such coupling, and the same facility will exist in new versions of other codes, as they become available. One example application involves embedding a PFC particle assembly within a FLAC grid, thus providing an efficient continuum boundary condition for the PFC assembly. The data transmission between codes is invoked by FISH functions that allow large arrays of data to be exchanged with single function calls.

New Printing and Movie Facilities - Version 4.0 can generate graphics files in several industry standard formats: BMP, EMF, JPEG, DXF and PCX in addition to PostScript. These formats are invoked through the SET plot command. Also, a new movie viewer program (MOVIE.EXE) is provided as a Windows application. The MOVIE command now works with the Windows version of FLAC and controls the capture of screen plots as a set of PCX images that are viewed with MOVIE.EXE

به حجم  17.03 مگابایت

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منبع :  مکانیک خاک و مهندسی پی

دانلود منوال نرم افزار ژئو اسلوپ Geoslope - شاخه AIR-W 2007

به حجم  1.72 مگابایت

در فرمت پی دی اف (pdf)  کتاب در 138 صفحه

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http://s1.picofile.com/file/7220875157/AIRW_2007_engineering_book.pdf.html

منبع : http://4-engineer.blogfa.com/category/50/