Data

This is the input of beam3.dat
noMaterials,noSections,noNodes,noMembers,noLoadCases,noPrescribes:
 1  1  4  3  2  1
 1  1
Materials: (kN m units)
no of material group,  Young's modulus, E only
 1  2e8
Section List (in this example one section only):
no, area, Ix  (m units)
1  5890e-6  99.5e-6
Nodal List:
no, x, y (mm),  flagX, flagY, flagXY
1   0.     0.         1  1  0
2   3      0          0  0  0
3   6      0          0  0  0
4  12      0          0  1  0 
Member List:
no, end1 node no, end2 node no, material no, area no.
1  1 2                                    1 1
2  2 3                                    1 1 
3  3 4                                    1 1
LoadCase 1:
 node no, X load, Y load   XY moment  (kN m units)
   2        0       -15      0
LoadCase 2:
The same as LC1, but different displacements
   2        0       -15      0
Prescribed displacements LC1
node no with the prescribed displacement for each load case
   3        0     -10e-3    0 
LC2
Prescribed displacements - small number, not zero!
   3        0     1e-25    0