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Hexahedra, BEAM56G1

Mesh: Four hexahedra--see appendix B.1.
Material properties: $E=2\times 10^5$ MPa, $\nu=0.3$.
Support: Two point support. Statically determinate. 

u=v=w=0 node:	 24 
u=w=0 node: 	 22       
v=w=0 node: 	 56       
w=0 node: 	 54
Solution: The unit end force is replaced with the equivalent surface traction as

\begin{displaymath}q_x=\frac{-1}{0.01\times 0.02}=-5000\,\mbox{[Pa]}~,~~~ q_y=0~,~~~q_z=0 \end{displaymath}

The initial stress matrix is then computed from the stress field obtained by the standard linear analysis.
Execute from prompt:
>rmd3 beam56g1.I1
>rpd3 beam56g1.I2
>srh3 beam56g1.I3
>fefs beam56g1.I4
>geo3 beam56g1.IG
>heig beam56g1.IE
>stab beam56g1.IS