problem description
nodes = 5 	elements = 4		title = "Axisymmetric Example"

axisymmetric elements
1  nodes=[1,2,5]	material = steel
2  nodes=[2,3,5]
3  nodes=[3,4,5]
4  nodes=[4,1,5]	load = pressure

nodes
1  x=0.5	y=0	constraint=free
2  x=1.0	y=0	
3  x=1.0        y=0.5	
4  x=0.5	y=0.5	
5  x=0.75       y=0.25	constraint=roller

distributed loads
pressure direction=radial  values=(2,1) (1,1)

material properties
steel   E=30e6   nu=0.3

constraints
roller Tx=u	Ty=c
free   Tx=u     Ty=u

end
