Matrix problems from Reijo Kouhia, Structural Mechanics, Helsinki      
University of Technology.   http://users.tkk.fi/~kouhia/sparse.html    
                                                                       
Surface mount transistor, 1704 reduced triquadratic elem, therm stress.
This is a stiffness matrix from a thermal stress analysis of           
a surface mounted transistor.  Due to symmetry only one half of        
the model is discretized in 1704 standard reduced triquadratic elements
(20 node serendipity).  There are 5 different materials.               
The stiffness matrix is integrated by 3x3x3 Gaussian quadrature.       
Separate load vector file is also available.                           
Figure of the FE model can be seen in a separate description,          
or downloaded as a postscript file from the contributors www-pages.    
Contributor:                                                           
Reijo Kouhia, Helsinki University of Technology,                       
               Laboratory of Structural Mechanics                      
               PO Box 2100, 02015 HUT, Finland                         
 e-mail: reijo.kouhia@hut.fi                                           
 http://www.hut.fi/~kouhia