brazilreadme.txt

Triangular mesh processing tool, currently very few people use this software, but it allows us to gr

********************************************************************************
********************************************************************************
*****                                                                      *****
*****     This is the Readme file for the Dynamic Brazilian Test Example.  *****
*****  All the files in this sub-directory (folder) were provided by       *****
*****                       L. Schwer                                      *****
*****  and we gratefully acknowledge his efforts in preparing this         *****
*****  example.                                                            *****
*****     The files that are included in this example include:             *****
*****                      brazilain.geom                                  *****
*****                      BrazilianRun.tg                                 *****
*****                      interface.defs                                  *****
*****                      material.defs                                   *****
*****                      materials.dyna                                  *****
*****                            and                                       *****
*****   preliminary-b.pdf (A preliminary paper explaining the test.)       *****
*****     This is a complete pre-processing example.  The mesh is simple   *****
*****  so as not to distract from the material and boundary condition      *****
*****  definitions.  These definitions have been provided for both DYNA3D  *****
*****  (also known as Lab-LYNA) and LS-DYNA.  The LS-DYNA input            *****
*****  specifications are for version 950.                                 *****
*****     All files are well commented, including appropriate units.  The  *****
*****  reader is encouraged to examine the format as well as the content   *****
*****  of these input files.                                               *****
*****     A description of the problem that is being simulated is          *****
*****  provided as a PDF file in the preliminary paper.                    *****
*****                                                                      *****
*****                              XYZ Scientific Applications, Inc.       *****
*****                              October 16, 2000                        *****
*****                                                                      *****
********************************************************************************
********************************************************************************

The problem to be solved is the dynamic loading of a cylindrical
concrete specimen mounted between two long steel rods, a so
called Brazilian test (cylindrical specimen) in a split Hopkins
bar (two long rods).

The main reference for this work is:

          "Three-dimensional finite-element simulation of the 
            dynamic Brazilian tests on concrete cylinders"
              Gonzalo Ruiz, Michael Ortiz, Anna Pandolfi
       International Journal for Numerical Methods in Engineering
        Volume: 48, Issue: 7, Date: 10 July 2000, Pages: 963-994
    http://www3.interscience.wiley.com/cgi-bin/abstract/72503043/START


L. Schwer's modeling consists of these TG files:

   Brazilian.run.tg        main TG file with analysis options

   material.defs           common material parameter definitions for use 
                           by either LS-DYNA or DYNA3D

   materials.dyna          DYNA3D material model definitions

   materials.lsdyna        LS-DYNA material model definitions; includes 
                           an example of inputs for a User Supplied 
                       	   Material Model (mat 48)

   interface.defs          DYNA3D or LS-DYNA contact interface definitions

   brazilian.geom          TG commands need to construct the mesh and
                           associated boundary conditions