Welcome to Impact - A free and simple Explicit Finite element solver.

The documentation for this program is found in the impactdoc directory.
View index.htm in your browser.


Disclaimer
----------
Remember that you use this software at your own risk. I cannot be held responsible
for any results of effects of this program. See the GNU license at the end.


Installation
------------
Impact requires Java to be installed on your computer.

All this is explained in the web documentation which is found online or under the Manual_Programmers or Manual_Users
directories.


It is simplest to run Impact from the GUI. To do that, just run the ImpactGUI.bat file in this directory if you are a Windows user
or make the ImpactGUI.sh runnable (chmod 777 ImpactGUI.sh) and run that with ./ImpactGUI if you are a Linux/Unix/Mac user.
Alternatively, just write  bash ImpactGUI.sh  to start.


Alternatively, to try out the Impact solver alone from the console, stay in this directory. 
Impact is now started by writing   

java run.Impact examples/indatafile.in

where indatafile is one of the examples in the examples directory.
The resultfiles will end up there as well.

Impact can also use the GID pre-and postprocessor as environment.
The GID preprocessor can be configured to export Impact indata fies. 

Just copy the entire Impact.gid directory with files and all to the GID subdirectory. Example:
cd Impact (Go into the Impact main directory. You could now see the Impact subdirectory)
cp -r Impact /homes/myuser/GID7_0/problemtypes/

Instructions how to use this is documented in the manual.


Contact
-------

Impact and it's authors can be reached from http://impact.sourceforge.net


Licence conditions
------------------

This program is free software; you can redistribute it and/or modify it under the terms of the GNU
General Public License as published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program;
if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA


Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with
ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are
welcome to redistribute it under certain conditions; type `show c' for details.

Acknowledgement
---------------

The Jama library was written by The MathsWorks, Inc and the National Institute of Standards and Technology

Closing
-------

Enjoy!

/Jonas






