*Part, name=Beam2d
*End Part
*Assembly, name=Assembly
**
*Instance, name=Beam2d-1, part=Beam2d
*Node
*Element, type=B21
** Region: (Secn:Picked), (Beam Orientation:Picked)
*Elset, elset=_I1, internal, generate
** Section: Secn  Profile: Prof
*Beam Section, elset=_I1, Section=RECT,material=Elas
1, 1
0.,0.,-1.
*Element,type=spring1,elset=spr2
*spring,elset=spr2
2,
1000
*End Instance
*Nset, nset=_Set4, internal, instance=Beam2d-1
*Nset, nset=Force,instance=Beam2d-1
*End Assembly
**
** MATERIALS
**
*Material, name=Elas
*Density
10.,
*Elastic
 1e+08,0.
** ----------------------------------------------------------------
*Step, name=Stp1, nlgeom, inc=1000
Small Deformation
*dynamic
0.1, 1., 0.1, 0.1
*controls,param=field
1e-5,
*Boundary
_Set4, 1,2
*Cload
Force, 2, 1000.
Force,6,200
*output,field
*node output
u,
*element output
e,s
*End Step